]> 2008/06/10 OpenCyc Knowledge Base Copyright© 2001-2008 Cycorp, Inc., http://www.cyc.com/, Austin, TX, USA This file contains an OWL representation of information contained in the OpenCyc Knowledge Base. The content of this OWL file is licensed under the Creative Commons Attribution 3.0 license whose text can be found at http://creativecommons.org/licenses/by/3.0/legalcode. The content of this OWL file, including the OpenCyc content it represents, constitutes the "Work" referred to in the Creative Commons license. The terms of this license equally apply to, without limitation, renamings and other logically equivalent reformulations of the content of this OWL file (or portions thereof) in any natural or formal language, as well as to derivations of this content or inclusion of it in other ontologies. externalID A unique, language-neutral, variable-sized identifier for a concept that can be used to refer unambiguously to that concept across OWL exports or across Cyc inference engines. label A natural-language representation for a concept that is both human readable and readable by the Cyc inference engine. These terms are not guaranteed to refer to the same concept across time but are guaranteed to be consistent within a particular OWL export. Use 'cycAnnot:externalID' for unambiguously referring to a concept across OWL exports or across Cyc inference engines. LandTransportationTerrainFeatureType land transportation terrain feature type A collection of collections. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRHFzqrgzEdqAAAACs2IMlQ" class="cyc_term">LandTransportationTerrainFeatureType</a> are collections of terrain features which are used for or relate to transportation of vehicles, people, or materials over land. BaileyBridge-Military Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvYXmPJwpEbGdrcN5Y29ycA" class="cyc_term">BaileyBridge_Military</a> is a through-truss bridge manually assembled by connecting panels end to end. The roadway is formed by connecting stringers and decking between truss girders. The main girders on each side of the bridge can be assembled in multiple widths and heights to provide added strength and/or length of span. Components of the bridge can be assembled to form piers which are used as intermidiate supports for long spans. The BaileyBridge system is highly labor-intensive but also highly versatile. In some cases, because it can be assembled in multiple heights and widths, it is the only tactical bridge suitable for long spans and heavy loads. The basic bridge set contains enough parts and equipment to install two 80-foot double-single bridges or one 130-foot double-double bridge. The use of a Reinforcement Set will enable a unit to construct a triple-truss, single-story bridge (in any length from 100 to 180 feet) for Military Load Class 60 traffic. (Source: Engineer Systems Handbook, 4/97) bailey bridge abandoned railroad (CollectionIntersectionFn (TheSet Abandoned-ExistentialStatus Railway)) A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv1IcZpwpEbGdrcN5Y29ycA" class="cyc_term">Railway_StandardGauge</a> is a railway that is of <i>standard</i> (or <i>international</i>) gauge. <i>Rail gauge</i> is the distance between the inner sides of the two rails of a railroad, and standard gauge is ((<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViLE5wpEbGdrcN5Y29ycA" class="cyc_term">Milli</a> <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjRp5wpEbGdrcN5Y29ycA" class="cyc_term">Meter</a>) 1435) (or 4 feet 8.5 inches). Standard gauge is currently used by about 60% of the world's railroads. <p/> Cf. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv_e41JwpEbGdrcN5Y29ycA" class="cyc_term">Railway_NarrowGauge</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpYLmpwpEbGdrcN5Y29ycA" class="cyc_term">Railway_BroadGauge</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWafPJwpEbGdrcN5Y29ycA" class="cyc_term">Railway_DualGauge</a>. Railway-StandardGauge railway standard gauge (CollectionIntersectionFn (TheSet Railway JunctionOfPaths)) member of { railroads, junctions } PavedPath A subcollection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4reeR5jnS7EdaAAACgyZzFrg" class="cyc_term">Paved</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r6JChCnS7EdaAAACgyZzFrg" class="cyc_term">PavedPath</a> is the collection of surfaces, such as roads, sidewalks, and floors, that are covered with concrete, asphalt, stones or bricks, etc. The paved surface is generally <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4ry6EklHS6EdaAAACgyZzFrg" class="cyc_term">Smooth</a> and has some degree of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVixwpwpEbGdrcN5Y29ycA" class="cyc_term">Hardness</a>. paved path railway-siding A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a>; each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r94DM5kJ5EdqAAAACs0x8nw" class="cyc_term">Railway_Siding</a> is a short track that separates, runs parallel, and rejoins the main track. A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r94DM5kJ5EdqAAAACs0x8nw" class="cyc_term">Railway_Siding</a> allows one train to pass another when both are using the same main track. Railway-Siding The collection of all bridges built (temporarily) for military purposes. Sub-collections of this collection include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpEfspwpEbGdrcN5Y29ycA" class="cyc_term">FixedBridge_Military</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpd1HJwpEbGdrcN5Y29ycA" class="cyc_term">FloatingBridge_Military</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvonWfpwpEbGdrcN5Y29ycA" class="cyc_term">BridgeWithArmoredVehicle</a> etc. temporary military bridge Bridge-Military Freeway A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rP9jwioz1QdmCq5ObWNPUIA" class="cyc_term">Freeway</a> is a wide highway designed to accommodate high-speed traffic. freeway Bridge A specialzation of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r3OvFOHS_EdaAAACgyZzFrg" class="cyc_term">SuspendedPathArtifact</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWjXAJwpEbGdrcN5Y29ycA" class="cyc_term">TransportFacility</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>s are elevated roadways, usually over water or some other pathway artifact. bridge (CollectionIntersectionFn (TheSet AlternateRoute BusinessRoute Freeway)) member of The Set alternate route business route freeway collector/distributor road CollectorDistributorRoad A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. Each <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXxtr5gOfEdqAAAACs0x8nw" class="cyc_term">CollectorDistributorRoad</a> is a part of a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rP9jwioz1QdmCq5ObWNPUIA" class="cyc_term">Freeway</a> or <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWRMBbgOfEdqAAAACs0x8nw" class="cyc_term">ArterialRoad</a> that allows a vehicle to merge or get off the main road without weaving or interfering with the flow of traffic in the faster lanes. Like the typical <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWv7qQgOfEdqAAAACs0x8nw" class="cyc_term">FrontageRoad</a>, the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXxtr5gOfEdqAAAACs0x8nw" class="cyc_term">CollectorDistributorRoad</a> is one way. However, the latter is part of the main road, while the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWv7qQgOfEdqAAAACs0x8nw" class="cyc_term">FrontageRoad</a> is not. highway Highway A specialization of both <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViTEpwpEbGdrcN5Y29ycA" class="cyc_term">PublicProperty</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a> is a major road open to public use. A specialization of both <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVidpZwpEbGdrcN5Y29ycA" class="cyc_term">ConstructionArtifact</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvuh8yZwpEbGdrcN5Y29ycA" class="cyc_term">Path_Customary</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a> is a spatial path made by humans or animals. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a> include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjyCpwpEbGdrcN5Y29ycA" class="cyc_term">ErieCanal</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjjzZwpEbGdrcN5Y29ycA" class="cyc_term">WellandShipCanal</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwP1I6pwpEbGdrcN5Y29ycA" class="cyc_term">ChampsElysee</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQto3ZwpEbGdrcN5Y29ycA" class="cyc_term">WallStreet</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQBVGpwpEbGdrcN5Y29ycA" class="cyc_term">Highway101CA</a>. Note that each of these artifacts is a single, particular path; to refer to a whole system of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a>s, use <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvmCrpZwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifactSystem</a>. constructed route PathArtifact unpaved thing UnpavedPathArtifact This is the collection of unpaved instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a>, i.e. the opposite collection (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r4Pp_xqAtQdeD7vJwP405Mg" class="cyc_term">oppositeCollections</a>) of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r6JChCnS7EdaAAACgyZzFrg" class="cyc_term">PavedPath</a>. See its two main specializations: <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXLD0XHS-EdaAAACgyZzFrg" class="cyc_term">UnimprovedSurface_PathArtifact</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rJmUd9HS7EdaAAACgyZzFrg" class="cyc_term">ImprovedSurface_PathArtifact</a>. street block A collection of artificial paths. An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvm7gZpwpEbGdrcN5Y29ycA" class="cyc_term">BlockOfStreet</a> is a segment of an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1FJwpEbGdrcN5Y29ycA" class="cyc_term">Street_Generic</a> that extends from one intersection (of that street with another) to the next (i.e. the nearest intersection -- going in either direction -- of that street with yet another street). Normally, only streets in <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjK7JwpEbGdrcN5Y29ycA" class="cyc_term">UrbanArea</a>s are divided into street blocks. BlockOfStreet wheeled vehicle route PathForWheeledVehicles A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a> is an artifact whose primary function is to serve as a path along which wheeled vehicles may move or park. Often such paths are paved, but they need not be. Specializations of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a> include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViRDpwpEbGdrcN5Y29ycA" class="cyc_term">AirplaneRunway</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj2tJwpEbGdrcN5Y29ycA" class="cyc_term">ParkingLot</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. covered bridge CoveredBridge Kind of bridge in which the pathway has walls on the sides and a roof. Driveway driveway A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a>. A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViw6ZwpEbGdrcN5Y29ycA" class="cyc_term">Driveway</a> is a relatively short path that typically connects a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> to some point on a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj2ApwpEbGdrcN5Y29ycA" class="cyc_term">LotOfLand</a> near a building (such as a house or apartment building), where vehicles may be parked. Railway-BroadGauge A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpYLmpwpEbGdrcN5Y29ycA" class="cyc_term">Railway_BroadGauge</a> is a railway whose gauge is greater than that of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv1IcZpwpEbGdrcN5Y29ycA" class="cyc_term">Railway_StandardGauge</a> (or <i>international</i> gauge). <i>Rail gauge</i> is the distance between the inner sides of the two rails of a railroad, and standard gauge is ((<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViLE5wpEbGdrcN5Y29ycA" class="cyc_term">Milli</a> <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjRp5wpEbGdrcN5Y29ycA" class="cyc_term">Meter</a>) 1435) (or 4 feet 8.5 inches). Broad gauge is currently used in a fair number of countries, including India, Spain, Ireland, Brazil, and parts of Australia. <p/> See also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv_e41JwpEbGdrcN5Y29ycA" class="cyc_term">Railway_NarrowGauge</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWafPJwpEbGdrcN5Y29ycA" class="cyc_term">Railway_DualGauge</a>. railway broad gauge The collection of military bridges which are fixed, as opposed to floating. Sub-collections of this collection include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpCnd5wpEbGdrcN5Y29ycA" class="cyc_term">HeavyDrySupportBridge</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv-J88JwpEbGdrcN5Y29ycA" class="cyc_term">M3MediumGirderBridge</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvYXmPJwpEbGdrcN5Y29ycA" class="cyc_term">BaileyBridge_Military</a>, etc. temporary fixed bridge FixedBridge-Military improved thing ImprovedSurface-PathArtifact <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rJmUd9HS7EdaAAACgyZzFrg" class="cyc_term">ImprovedSurface_PathArtifact</a> is the collection of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a> with an existing but relatively elementary construction. The surface is made of stabilized or oiled-surface gravel or stone, graded and drained gravel or stone, or graded and drained soil. For instance, in the United States, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rJmUd9HS7EdaAAACgyZzFrg" class="cyc_term">ImprovedSurface_PathArtifact</a> will apply to hard-surface roads less than two lanes wide, or private roads which normally are not used for the rerouting of traffic in emergencies. Source: US Army Field Manual, FM 21-31. two to three lane roadway TwoOrThreeLanesRoadway The collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>s that have a total of 2 or 3 lanes or tracks, both directions included. This criterion belongs to the US Army's nomenclature for the representation of roads on large and medium scale maps. See also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rkr7nQnSwEdaAAACgyZzFrg" class="cyc_term">RoadwayTypeByNumberOfLanes</a>. member of The Set truck route freeway (CollectionIntersectionFn (TheSet TruckRoute Freeway)) FrontageRoad A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWv7qQgOfEdqAAAACs0x8nw" class="cyc_term">FrontageRoad</a> typically runs parallel to an <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWRMBbgOfEdqAAAACs0x8nw" class="cyc_term">ArterialRoad</a> or <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rP9jwioz1QdmCq5ObWNPUIA" class="cyc_term">Freeway</a> (i.e., the main road) and has intermittent ramps that merge to and from the main road. A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWv7qQgOfEdqAAAACs0x8nw" class="cyc_term">FrontageRoad</a> also is usually one way: traffic moves in the same direction as traffic on the lane of the main road that is immediately adjacent. Another <font color="#ff0000">#$Frontage</font> road has traffic that moves in the opposite direction on the other side of the main road. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWv7qQgOfEdqAAAACs0x8nw" class="cyc_term">FrontageRoad</a>s often have easy access to properties or side streets that are on the side opposite of the main road (usually the right side). frontage road (CollectionIntersectionFn (TheSet ArterialRoad TollRoad)) member of { arterial roads, turnpikes } A residential street that comes to an end - i.e., a dead end or a circle. CulDeSac cul de sac ThreeLanesOrWiderRoadway three lanes or wider roadway The collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>s that have a total of three or more lanes or tracks, both directions included. This criterion belongs to the US Army's nomenclature for the representation of roads on medium scale maps. See also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rkr7nQnSwEdaAAACgyZzFrg" class="cyc_term">RoadwayTypeByNumberOfLanes</a>. (CollectionIntersectionFn (TheSet Freeway TollRoad (SubcollectionOfWithRelationToTypeFn Roadway pathThroughRegion Tunnel))) member of The Set freeway turnpike roadway that passes through some tunnel TwoLaneRoadway The collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>s that have two lanes or tracks, both directions included. This criterion belongs to the US Army's nomenclature for the representation of roads on medium scale maps. See also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rkr7nQnSwEdaAAACgyZzFrg" class="cyc_term">RoadwayTypeByNumberOfLanes</a>. two lane roadway A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rP9jwioz1QdmCq5ObWNPUIA" class="cyc_term">Freeway</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYFnYegYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute</a>. Most instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYh1hVAYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute_Major</a> have controlled-access and multiple lanes either way. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYh1hVAYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute_Major</a> typically either runs for a long distance or connects major cities. Route 66 is a famous example; it extends 2448 miles and connects Chicago to Santa Monica, California. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZmd-egYMEdqAAAACs0x8nw" class="cyc_term">USInterstateSystemRoute</a> is an important specialization. USHighwayRoute-Major US highway route major A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rjdX_hJUaEdqAAAACs6hRXg" class="cyc_term">ArchBridge</a>. Compression arch suspended-deck bridges are arch bridges form which the transport decks are suspended, usually by cables. compression arch suspended-deck bridge CompressionArchSuspendedDeckBridge unpaved road The collection of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> that are also instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rIgctDHS_EdaAAACgyZzFrg" class="cyc_term">UnpavedPathArtifact</a>. UnpavedRoadway A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. Cantilever bridges are supported by cantilevers positioned towards the middle of the bridge. cantilever bridge CantileverBridge elevated roadway ElevatedRoadway The collection of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> that are elevated (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>). A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rUEZKOqt9QdiYdara-7o1ZA" class="cyc_term">TollRoad</a> is a roadway that (most) users must pay a standard toll or fee to cross. Some users, e.g. on-duty <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjgBJwpEbGdrcN5Y29ycA" class="cyc_term">LawEnforcementOfficer</a>s, may be exempt. turnpike TollRoad (CollectionIntersectionFn (TheSet Ancient Roadway)) ancient roadway The collection of all ancient roadways. A type of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rl2gR1nS8EdaAAACgyZzFrg" class="cyc_term">Ancient</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. ArmoredVehicleLaunchedBridge-Low low armored vehicle launched bridge member of The Set alternate route bypass route freeway (CollectionIntersectionFn (TheSet AlternateRoute BypassRoute Freeway)) M3MediumGirderBridge Each <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv-J88JwpEbGdrcN5Y29ycA" class="cyc_term">M3MediumGirderBridge</a> (MGB) is a hand-erectable, heavy-duty, prefabricated deck bridge consisting of high strength components, which can be assembled into bridges of varying lengths. The key advantages of MGB over <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvYXmPJwpEbGdrcN5Y29ycA" class="cyc_term">BaileyBridge_Military</a> are speed and ease of erection. One MGB set contains enough components to construct 102 feet of Military Load Class (MLC) 60 bridge. With the use of a Reinforcement Kit and two sets of MGB, a 160-foot span MLC 60 bridge can be constructed. Although the MGB can withstand MLC 70 loads, the effective life of the bridge is shortened from about 10,000 to 7,000 crossings. The bridge set can also be used to construct a variety of shorter span bridges. The rapid construction characteristics of the MGB provide a capability which can be used well forward in the main battle area. The MGB and the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvYXmPJwpEbGdrcN5Y29ycA" class="cyc_term">BaileyBridge_Military</a> are considered as complementary systems, each satisfying different operational requirements. The primary role of the MGB is for tactical bridging in the brigade area while the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvYXmPJwpEbGdrcN5Y29ycA" class="cyc_term">BaileyBridge_Military</a> is used primarily as a lines of communication bridge. As the tactical situation permits, MGB would be removed and replaced by Bailey, timber or steel bridges. (Source: Engineer Systems Handbook, 4/97) MGB This is the collection of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a> that can accomodate only light loads in dry weather. They are without surface improvement and are seldom maintained. Included are abandoned roads, fire roads, and lumber roads. Source: US Army Field Manual, FM 21-31. UnimprovedSurface-PathArtifact unimproved thing Boardwalk boardwalk member of The Set freeway turnpike (CollectionIntersectionFn (TheSet Freeway TollRoad)) A road in a residential area that is owned by the people who live on it. Usually only one or two homes. private street Street-Private TrussBridge A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. Truss bridges are supported by truss structures -- static structures consisting of straight slender members inter-connected at joints into triangular units. truss bridge The collection of junctions of roadways that join at least two different roads of primary importance [<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXnFiqHS6EdaAAACgyZzFrg" class="cyc_term">Primary_RoadClassification</a>]. RoadwayJunction-Primary primary roadway junction causeway Causeway A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rx_LqKCTaQdeDobXeN24CKg" class="cyc_term">Causeway</a> is a raised roadway across wet ground or shallow water. Causeways tend to be longer than the average bridge. (CollectionIntersectionFn (TheSet ArterialRoad AlternateRoute)) member of The Set arterial road alternate route member of The Set collector road business route (CollectionIntersectionFn (TheSet CollectorRoad BusinessRoute)) member of The Set arterial road truck route (CollectionIntersectionFn (TheSet ArterialRoad TruckRoute)) RailroadSwitch A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWjXAJwpEbGdrcN5Y29ycA" class="cyc_term">TransportFacility</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r4ziDckJ_EdqAAAACs0uFOQ" class="cyc_term">RailroadSwitch</a> is a location on a railroad at which rails may be switched to permit access to another line. Also known as &quot;railway points&quot;. railroad switch PavedRoadway paved road The collection of instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> that are also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4reeR5jnS7EdaAAACgyZzFrg" class="cyc_term">Paved</a>. Notable specializations include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a>. The collection of secondary roads in a given <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWYrXJwpEbGdrcN5Y29ycA" class="cyc_term">RoadSystem</a> or in a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a>. Roads with this attribute are those connecting minor places of an area. Also included are roads connecting two main roads [see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXnFiqHS6EdaAAACgyZzFrg" class="cyc_term">Primary_RoadClassification</a>] or at least one road of higher classification. These roads are usually used less, the infrastructure is less developed and the surface of lower quality than the standard main roads in the area. secondary road Secondary-RoadClassification trail A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwP1K_pwpEbGdrcN5Y29ycA" class="cyc_term">Trail</a> is a relatively narrow, outdoor pathway, usually unpaved. Trails are frequently found in wilderness or recreational areas, and are often intended for pedestrians, bicycles, and/or horseback riding. Trail arch bridge A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. Arch bridges have abutments at each end and are shaped as curved arches. They transferring the weight of the bridge and its loads partially into a horizontal thrust against the abutments at either side. ArchBridge bridge supported via armored vehicle BridgeWithArmoredVehicle A collection of military bridges that are physically supported underneath by an armored vehicle such as a modified tank chassis. arterial road ArterialRoad A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a>. An <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWRMBbgOfEdqAAAACs0x8nw" class="cyc_term">ArterialRoad</a> permits faster traffic by having less stops and accessibility. It usually is at least two-lanes in either direction. In city traffic, it is not uncommon to have occassional traffic lights, or in the country, four-way stops at the juncture of other major roads. However, long stretches of road will have unobstructed traffic and speeds of over 60 mph. state route primary StateRoute-Primary A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZ9TJmAYMEdqAAAACs0x8nw" class="cyc_term">StateRoute</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rP9jwioz1QdmCq5ObWNPUIA" class="cyc_term">Freeway</a>. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4raWrdnAYMEdqAAAACs0x8nw" class="cyc_term">StateRoute_Primary</a> are major expressways, multi-laned, and controlled-access. They are found primarily in major cities. member of { paved thing, parking lots } (CollectionIntersectionFn (TheSet Paved ParkingLot)) Underpass underpass A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a>. When two wheeled-vehicle paths cross in such a way that they do not join or intersect each other, but instead one path passes under the other, the portion of the former path that passes directly under the latter is an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPu1HZwpEbGdrcN5Y29ycA" class="cyc_term">Underpass</a>. The corresponding portion of the latter path is an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPu0MZwpEbGdrcN5Y29ycA" class="cyc_term">Overpass</a>, which is a type of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. FourLanesOrWiderRoadway four lanes or wider roadway The collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>s that have a total of 4 or more than 4 lanes or tracks, both directions included. This criteria belongs to the US Army's nomenclature for the representation of roads on large and medium scale maps. See <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rkr7nQnSwEdaAAACgyZzFrg" class="cyc_term">RoadwayTypeByNumberOfLanes</a>. USHighwayRoute A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYFnYegYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute</a> is coordinated by the US federal government, but they may be funded and maintained by state governments. US highway route A route where boats, goods, etc., are carried overland between navigable waters. portage Portage <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4ruhr7MHS8EdaAAACgyZzFrg" class="cyc_term">OnGroundSurface_PathArtifact</a> is the collection of paths that are located on ground, i.e. they are on the surrounding surface. ground thing OnGroundSurface-PathArtifact Primary-RoadClassification The collection of main roads in a given <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWYrXJwpEbGdrcN5Y29ycA" class="cyc_term">RoadSystem</a> or in a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a>. They connect important populated places of an area. They are usually comparatively of better quality than secondary roads: see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rhndldHS9EdaAAACgyZzFrg" class="cyc_term">Secondary_RoadClassification</a>. primary road classification A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXReSPgOfEdqAAAACs0x8nw" class="cyc_term">LocalRoad</a> is typically one lane with two-way traffic, frequent stops, and slow travel. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXReSPgOfEdqAAAACs0x8nw" class="cyc_term">LocalRoad</a>s tend to be short with a small volume of traffic. Most streets - especially those in neighborhoods - are <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXReSPgOfEdqAAAACs0x8nw" class="cyc_term">LocalRoad</a>s. local road LocalRoad Tunnel tunnel A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWlYxOnS_EdaAAACgyZzFrg" class="cyc_term">Underground</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwO2abpwpEbGdrcN5Y29ycA" class="cyc_term">Tunnel</a> is a human-made pathway that goes underground. A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a>. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZ9TJmAYMEdqAAAACs0x8nw" class="cyc_term">StateRoute</a> are controlled and maintained by a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViKmJwpEbGdrcN5Y29ycA" class="cyc_term">State_UnitedStates</a>. Unlike <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYFnYegYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute</a>, state routes are exclusively intra-state. state route StateRoute (CollectionIntersectionFn (TheSet CollectorRoad BypassRoute)) member of The Set collector road bypass route <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViWFJwpEbGdrcN5Y29ycA" class="cyc_term">NamedRoadway</a> is a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1FJwpEbGdrcN5Y29ycA" class="cyc_term">Street_Generic</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViWFJwpEbGdrcN5Y29ycA" class="cyc_term">NamedRoadway</a> is named part (stretch or segment) of roadways. (Not roadway the stuff.) Instances are named pieces of roadways (or highways or streets) which have names and lengths, and (usually) intersect with other roads. NamedRoadway named roadway A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rVwt3_AOfEdqAAAACs0x8nw" class="cyc_term">CollectorRoad</a> is needed to connect traffic between <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXReSPgOfEdqAAAACs0x8nw" class="cyc_term">LocalRoad</a>s and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWRMBbgOfEdqAAAACs0x8nw" class="cyc_term">ArterialRoad</a>s; also used for relatively short-distance travel in town. A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rVwt3_AOfEdqAAAACs0x8nw" class="cyc_term">CollectorRoad</a> has a moderate balance between mobility and accessibility; typically traffic speeds are from 20 to 45 mph. collector road CollectorRoad member of The Set bypass route freeway (CollectionIntersectionFn (TheSet BypassRoute Freeway)) A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWafPJwpEbGdrcN5Y29ycA" class="cyc_term">Railway_DualGauge</a> is a railway consisting of three or four rails in order to accommodate cars of two different gauges. <i>Rail gauge</i> is the distance between the inner sides of the two rails of a railroad, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv1IcZpwpEbGdrcN5Y29ycA" class="cyc_term">Railway_StandardGauge</a> is ((<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViLE5wpEbGdrcN5Y29ycA" class="cyc_term">Milli</a> <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjRp5wpEbGdrcN5Y29ycA" class="cyc_term">Meter</a>) 1435) (or 4 feet 8.5 inches). <p/> See also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv_e41JwpEbGdrcN5Y29ycA" class="cyc_term">Railway_NarrowGauge</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpYLmpwpEbGdrcN5Y29ycA" class="cyc_term">Railway_BroadGauge</a>. railway dual gauge Railway-DualGauge cable-stayed bridge A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. Cable-stayed bridges consist of one or more pillars from which with supporting cables descend to the deck. CableStayedBridge interstate The collection of all interstates. A type of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rspkKknS7EdaAAACgyZzFrg" class="cyc_term">FourLanesOrWiderRoadway</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a>. The collection <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rpGpGFieEQdiJr99wgKQNPg" class="cyc_term">InterstateHighway</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rR9q_HHSwEdaAAACgyZzFrg" class="cyc_term">RoadwayTypeByClassification</a> and a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRHFzqrgzEdqAAAACs2IMlQ" class="cyc_term">LandTransportationTerrainFeatureType</a>. InterstateHighway (CollectionIntersectionFn (TheSet ArterialRoad AlternateRoute BusinessRoute)) member of The Set arterial road alternate route business route movable bridge MovableBridge A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. Movable bridges are fixed structures, parts of which move to allow objects to travel past them. The collection of all permament bridges. A type of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjGR5wpEbGdrcN5Y29ycA" class="cyc_term">FixedStructure</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwVRPmJwpEbGdrcN5Y29ycA" class="cyc_term">Bridge_Permanent</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRHFzqrgzEdqAAAACs2IMlQ" class="cyc_term">LandTransportationTerrainFeatureType</a>. permament bridge Bridge-Permanent member of The Set freeway roadway that passes through some tunnel (CollectionIntersectionFn (TheSet Freeway (SubcollectionOfWithRelationToTypeFn Roadway pathThroughRegion Tunnel))) overpass A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. When two wheeled-vehicle paths cross in such a way that they do not join or intersect each other, but instead one path passes over the other, the portion of the former path that passes directly over the latter is an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPu0MZwpEbGdrcN5Y29ycA" class="cyc_term">Overpass</a>. The corresponding portion of the latter path is an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPu1HZwpEbGdrcN5Y29ycA" class="cyc_term">Underpass</a>. Overpass member of The Set arterial road alternate route bypass route (CollectionIntersectionFn (TheSet ArterialRoad AlternateRoute BypassRoute)) HighwayRamp highway ramp A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWRMBbgOfEdqAAAACs0x8nw" class="cyc_term">ArterialRoad</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYFnYegYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute</a>. Most instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZEaszgYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute_Minor</a> have less controlled-access and supplement main routes. US highway routes that are specialized as alternate, bypass, city, historic, scenic, spur, or truck are considered instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZEaszgYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute_Minor</a>. USHighwayRoute-Minor US highway route minor A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv_e41JwpEbGdrcN5Y29ycA" class="cyc_term">Railway_NarrowGauge</a> is a railway whose gauge is less than that of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv1IcZpwpEbGdrcN5Y29ycA" class="cyc_term">Railway_StandardGauge</a> (or <i>international</i> gauge). <i>Rail gauge</i> is the distance between the inner sides of the two rails of a railroad, and standard gauge is ((<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViLE5wpEbGdrcN5Y29ycA" class="cyc_term">Milli</a> <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjRp5wpEbGdrcN5Y29ycA" class="cyc_term">Meter</a>) 1435) (or 4 feet 8.5 inches). Narrow gauge is currently used in a fair number of countries, including parts of South America, Asia, and Eastern Europe. <p/> See also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpYLmpwpEbGdrcN5Y29ycA" class="cyc_term">Railway_BroadGauge</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWafPJwpEbGdrcN5Y29ycA" class="cyc_term">Railway_DualGauge</a>. narrow gauge railway Railway-NarrowGauge A normal residential area with lots of homes and no businesses or traffic lights. Street-Residential residential street member of The Set collector road alternate route (CollectionIntersectionFn (TheSet CollectorRoad AlternateRoute)) (CollectionIntersectionFn (TheSet ArterialRoad AlternateRoute (SubcollectionOfWithRelationToTypeFn Roadway pathThroughRegion Tunnel))) member of The Set arterial road alternate route roadway that passes through some tunnel Each <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpCnd5wpEbGdrcN5Y29ycA" class="cyc_term">HeavyDrySupportBridge</a> (HDSB) is a modular bridge that can span a 40 meter gap in 90 minutes with 14 or fewer soldiers. One bridge set provides either one 40 meter bridge or two 20 meter bridges. The bridge will cross MLC 96W/70T traffic and allows the crossing of a Heavy Equipment Transporter carrying an M1A1 tank. The HDSB is designed for transportation as a palletized load by a CommonBridgeTransporter, Palletized Load System (PLS) trailers or by service support units equipped with PLS trucks. A bridge set will consist of no more than 9 PLS pallet loads and a launcher vehicle. (Source: Engineer Systems Handbook, 4/97) heavy dry support bridge HeavyDrySupportBridge A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rdZiwkEsCEdqAAAACs6hO_g" class="cyc_term">FlarePipe</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r6GZWLC-HEdqAAAACs71DGQ" class="cyc_term">Flue</a>, typically found in petrochemical refineries and other industrial complexes, where waste gases are expelled and burned off into the atmosphere. FlarePipe flare pipe The collection of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a> that connect two regions of equal height. Viaduct viaduct SuspensionBridge suspension bridge A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. On suspension bridges the main load-bearing cables are suspended between towers and vertical suspender cables attached to the main load-bearing cables carry the weight of the deck below. two lanes or wider road The colection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>s that have two or more lanes or tracks. This criterion belongs to the US Army's nomenclature for the representation of roads on medium scale maps. See also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rkr7nQnSwEdaAAACgyZzFrg" class="cyc_term">RoadwayTypeByNumberOfLanes</a>. TwoLanesOrWiderRoadway alley The collection of all alleys. A type of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rieFg_nTAEdaAAACgyZzFrg" class="cyc_term">Utility_RoadClassification</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rlyRLkCp4EdiUfwAH6RYvSQ" class="cyc_term">Alley</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRHFzqrgzEdqAAAACs2IMlQ" class="cyc_term">LandTransportationTerrainFeatureType</a>. Alley abandoned causeway (CollectionIntersectionFn (TheSet Abandoned-ExistentialStatus Causeway)) RibbonBridge ribbon bridge A Ribbon Bridge is a modular, aluminum alloy, continuous floating bridge system consisting of interior and ramp bays that are transported, launched and retrieved by a transporter/launcher vehicle. Bridge bays, which are carried in a folded position, automatically open upon entering the water to form a 22-foot section of bridge. Under certain raft/bridge designs and slower current velocities the M1 Abrams Tank can cross the Ribbon Bridge. The Riboon Bridge provides task force lead elements with a dependable bridging capability, which can be emplaced rapidly under all conditions. It facilitates the forward movement across wet gap barriers of wheeled and tracked vehicles in support of ground combat troops. The bridge system accompanies armored, mechanized and motorized units and provides wet gap bridging as required. The bridge bays and ramps are also helicopter tranportable. (Source: Engineer Systems Handbook, 4/97) intersection An <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWXYgJwpEbGdrcN5Y29ycA" class="cyc_term">ExistingObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPK0K5wpEbGdrcN5Y29ycA" class="cyc_term">Intersection_Street</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQzH5ZwpEbGdrcN5Y29ycA" class="cyc_term">RoadwayJunction</a> where two or more instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1FJwpEbGdrcN5Y29ycA" class="cyc_term">Street_Generic</a> intersect. Intersection-Street Leopard 2 AVLB launcher AVLB-Leopard2 Military bridges which use aluminum pontoons for flotation. M4T6F floating military bridge M4T6FloatingBridge RoadwayJunction roadway junction The collection of junctions of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. Two important (non disjoint) specs are <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPK0K5wpEbGdrcN5Y29ycA" class="cyc_term">Intersection_Street</a> (the collection of intersections of roadways in named urban areas) and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvkdLU5wpEbGdrcN5Y29ycA" class="cyc_term">RoadwayJunction_Primary</a> (the collection of intersections of primary roads, see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rXnFiqHS6EdaAAACgyZzFrg" class="cyc_term">Primary_RoadClassification</a>). A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> is a path artifact designed to accomodate road vehicles (see the collection <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjT95wpEbGdrcN5Y29ycA" class="cyc_term">RoadVehicle</a>) such as cars, trucks, and motorcycles. Specializations of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1FJwpEbGdrcN5Y29ycA" class="cyc_term">Street_Generic</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a>. roadway Roadway (CollectionUnionFn (TheSet USHighwayRoute-Major StateRoute-Primary)) the union of The Set US highway route major state route primary (CollectionIntersectionFn (TheSet ArterialRoad BusinessRoute)) member of The Set arterial road business route NationalParkway-NPS A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4riqkiEBAwEdqAAAACs0x8nw" class="cyc_term">ScenicRoadway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rjKajHBAwEdqAAAACs0x8nw" class="cyc_term">NationalParkway_NPS</a> is found in the United States and managed by the NationalParkService. national parkway NPS Avenue The collection of all avenues. A type of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1FJwpEbGdrcN5Y29ycA" class="cyc_term">Street_Generic</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r_FvEphlJQdiJV5A37qwXrA" class="cyc_term">Avenue</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRHFzqrgzEdqAAAACs2IMlQ" class="cyc_term">LandTransportationTerrainFeatureType</a>. avenue (CollectionIntersectionFn (TheSet AlternateRoute Freeway)) member of The Set alternate route freeway member of The Set arterial road bypass route (CollectionIntersectionFn (TheSet ArterialRoad BypassRoute)) railway crossing The collection of all junctions where a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> intersects a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a>. RailwayCrossing sidewalk Sidewalk The collection of all sidewalks. This does not include walkways that are part of a building. They are outside, and often made of concrete or of a series of flat stones placed on the ground. If the ground is covered in some way, and the path created is intended for walking, then it is a sidewalk. Promenade The collection of all promenades. A type of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViOopwpEbGdrcN5Y29ycA" class="cyc_term">PathArtifact</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rp0VsxinmQdiZ3flVh0zGAg" class="cyc_term">Promenade</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRHFzqrgzEdqAAAACs2IMlQ" class="cyc_term">LandTransportationTerrainFeatureType</a>. promenade Street-Generic <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1FJwpEbGdrcN5Y29ycA" class="cyc_term">Street_Generic</a> is a specialization of both <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjK7JwpEbGdrcN5Y29ycA" class="cyc_term">UrbanArea</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1FJwpEbGdrcN5Y29ycA" class="cyc_term">Street_Generic</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> located inside a city or town. street ImprovedRibbonBridge The collection of bridges that will be employed in the same general manner as the standard Ribbon Bridge. However, it will be able to cross faster water with higher MLCs and with banks that are up to two meters high. The Improved Ribbon Bridge bays are modified ribbon bays. The will posses better hydrodynamics, providing the capability of rafting or bridging MLC 70T traffic in currents up to 8 fps. The bays can be connected in one minute and can be connected to the standard ribbon bays. The bays will include postive floatation to increase the survivability of the system. The ramp bays can be hydraulically articulated to two meters. (Source: Engineer Systems Handbook, 4/97) improved ribbon bridge TruckRoute A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rns82SgYMEdqAAAACs0x8nw" class="cyc_term">TruckRoute</a> is sometimes like a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rnIAUrgYMEdqAAAACs0x8nw" class="cyc_term">BypassRoute</a> - used to bypass a congested area - but it is also a road that is more suitable for trucks. For example, the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rns82SgYMEdqAAAACs0x8nw" class="cyc_term">TruckRoute</a> may have wider lanes, better leveled surface, or properly elevated bridges with underpasses. The <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rns82SgYMEdqAAAACs0x8nw" class="cyc_term">TruckRoute</a> is a temporary detour from the main route. truck route railroad Railway A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWjXAJwpEbGdrcN5Y29ycA" class="cyc_term">TransportFacility</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a> is a pathway made of railroad tracks and used for train transportation. It includes main lines and sidings. A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZ9TJmAYMEdqAAAACs0x8nw" class="cyc_term">StateRoute</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWRMBbgOfEdqAAAACs0x8nw" class="cyc_term">ArterialRoad</a>. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4ra1tv1gYMEdqAAAACs0x8nw" class="cyc_term">StateRoute_Major</a> are multi-laned and may extend many miles, but they lack controlled-access in certain parts, especially via towns or cities. StateRoute-Major state route major SuspendedPathArtifact <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r3OvFOHS_EdaAAACgyZzFrg" class="cyc_term">SuspendedPathArtifact</a> is the collection of agent-made paths that are suspended or elevated above ground or water surface. suspended thing The collection of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a> that are too narrow to serve as paths for automobiles or other similar-sized motorized vehicles. cart path CartPath (CollectionIntersectionFn (TheSet RuinedArtifact Bridge)) member of { ruins, bridges } Restricted-RoadClassification The collection of roads that are restricted for certain types of vehicles or users that do not have authorization to use them by some relevant controlling authority. restricted road classification member of The Set business route freeway (CollectionIntersectionFn (TheSet BusinessRoute Freeway)) ArmoredVehicleLaunchedBridge AVLB The <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvt6TcJwpEbGdrcN5Y29ycA" class="cyc_term">ArmoredVehicleLaunchedBridge</a> (AVLB) launcher is a standard M60 or M48 tank chssis modified to transport, launch and retrieve the 60-foot span, Military Load Class (MLC) 60 AVLB. The tank chassis is modified by the removal of the turret and weapons, a special basket assembly is fitted into the turret will and reinforcement beams are welded to the inside of the hull. A bridge carrying rack on the hull rear provides the necessary support for the bridge during transport. The bridge is capable of carrying MLC 60 track loads across a 17.4 meter (57 foot) gap with unprepared abutments and 18.3 meter (60 foot) gap with prepared abutments. The AVLB launcher can launch and retrieve the AVLB on slopes up to 15% and on side slopes up to 8%. System mobility is compatible with the supported combat vehicles. The AVLB travels with maneuvering Tank and Mechanized Infantry formations. The assault launcher can launch the bridge without exposing bridge personnel to enemy fire and can retrieve the bridge from either end. (Source: Engineer Systems Handbook, 4/97) A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4riqkiEBAwEdqAAAACs0x8nw" class="cyc_term">ScenicRoadway</a> typically runs parallel to a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQwoXJwpEbGdrcN5Y29ycA" class="cyc_term">WildernessPark</a>. People usually take the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4riqkiEBAwEdqAAAACs0x8nw" class="cyc_term">ScenicRoadway</a> for recreational driving. ScenicRoadway scenic roadway The collection of military bridges that are floating rather than fixed. Sub-collections of this collection include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvjGWXJwpEbGdrcN5Y29ycA" class="cyc_term">RibbonBridge</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv4v9R5wpEbGdrcN5Y29ycA" class="cyc_term">AluminumFloatingFootBridge</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvy2xuJwpEbGdrcN5Y29ycA" class="cyc_term">LightTacticalRaft</a>, etc. FloatingBridge-Military temporary floating bridge A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>. An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rmJMQHAYMEdqAAAACs0x8nw" class="cyc_term">AlternateRoute</a> is a route that separates from a main route and returns to the main route at a later point. The <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rmJMQHAYMEdqAAAACs0x8nw" class="cyc_term">AlternateRoute</a> is often longer and of less construction quality as the main route. The purpose of the alternate route is often to relieve congestion from the main route. AlternateRoute alternate route A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYh1hVAYMEdqAAAACs0x8nw" class="cyc_term">USHighwayRoute_Major</a>. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZmd-egYMEdqAAAACs0x8nw" class="cyc_term">USInterstateSystemRoute</a> are controlled-access and permit high speed limits. The federal government coordinates the highway system and provides funding to the states for maintenance. USInterstateSystemRoute US interstate system route Trestle <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZIdHZN6QEdmAAAACs6hnlQ" class="cyc_term">Trestle</a> is a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD1IZwpEbGdrcN5Y29ycA" class="cyc_term">Bridge</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZIdHZN6QEdmAAAACs6hnlQ" class="cyc_term">Trestle</a>s are those brodges designed for use by <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjIJZwpEbGdrcN5Y29ycA" class="cyc_term">Train_TransportationDevice</a>s. They may also feature footpaths, but the primary <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjOOJwpEbGdrcN5Y29ycA" class="cyc_term">PathType</a> of a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZIdHZN6QEdmAAAACs6hnlQ" class="cyc_term">Trestle</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a>. trestle one lane roadway The collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a>s that have only a single lane or track. This criterion belongs to the US Army's nomenclature for roads, or more preciseley, for roads in foreign areas on large and medium scale maps. See <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rkr7nQnSwEdaAAACgyZzFrg" class="cyc_term">RoadwayTypeByNumberOfLanes</a> and its other instances. OneLaneRoadway (CollectionIntersectionFn (TheSet CollectorRoad TollRoad)) member of { collector roads, turnpikes } A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rZ9TJmAYMEdqAAAACs0x8nw" class="cyc_term">StateRoute</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rWRMBbgOfEdqAAAACs0x8nw" class="cyc_term">ArterialRoad</a>. An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rifucNgYMEdqAAAACs0x8nw" class="cyc_term">StateRoute_Minor</a> is often a road with a painted dividing line, which separates bi-directional traffic. In order for a vehicle to pass a slower vehicle, it must temporarily enter the lane for oncoming traffic. The minor roads include state farm roads and business roads. StateRoute-Minor state route minor thoroughfare Street-Urban A typical busy street in an urban area. A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQrcipwpEbGdrcN5Y29ycA" class="cyc_term">OpenArea</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQB9vJwpEbGdrcN5Y29ycA" class="cyc_term">VehicleStorageConstruct</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkIgpwpEbGdrcN5Y29ycA" class="cyc_term">SurfaceOnTangibleObject</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj2tJwpEbGdrcN5Y29ycA" class="cyc_term">ParkingLot</a> is a fairly large open area intended to be used for parking automobiles. ParkingLot parking lot <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4ru-8ymLHtEdmAAAACs6hO_g" class="cyc_term">ArtifactualFeatureType</a> is the collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r6-wc8BKxEdeIXwCgydofLQ" class="cyc_term">CartographicFeatureType</a>s which are <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkH_ZwpEbGdrcN5Y29ycA" class="cyc_term">Artifact</a>s, as opposed to naturally occuring. Positive examples include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjzt5wpEbGdrcN5Y29ycA" class="cyc_term">WaterReservoir</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjzcZwpEbGdrcN5Y29ycA" class="cyc_term">Canal</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rT2uByCTVQdeVZZaE0030Zg" class="cyc_term">Airfield</a>. Negative examples include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjODZwpEbGdrcN5Y29ycA" class="cyc_term">Mountain</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjktpwpEbGdrcN5Y29ycA" class="cyc_term">Ocean</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD8VZwpEbGdrcN5Y29ycA" class="cyc_term">Mesa</a>. Also see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rummjkLHtEdmAAAACs6hO_g" class="cyc_term">NaturalFeatureType</a>, the corresponding collection for naturally occuring feature types. artifactual feature type ArtifactualFeatureType LandTransportationTerrainFeatureType land transportation terrain feature type A collection of collections. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRHFzqrgzEdqAAAACs2IMlQ" class="cyc_term">LandTransportationTerrainFeatureType</a> are collections of terrain features which are used for or relate to transportation of vehicles, people, or materials over land. A collection of collections of collections of terrain features. By &quot;terrain feature&quot; is meant any natural geographical object or feature or artificial object or purposely man-altered area that can sensibly be indicated on a map as characteristic of a region. This notion is very important in terrain analysis -- this activity being primarily conceived as a military task, but applicable in any context where the location of objects or events in a geographical environment is relevant to the reasoning. See the very broad concept of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwLjlAJwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalThing</a> and its various specializations. category of terrain feature TerrainFeatureTaxonType LandTransportationTerrainFeatureType land transportation terrain feature type A collection of collections. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRHFzqrgzEdqAAAACs2IMlQ" class="cyc_term">LandTransportationTerrainFeatureType</a> are collections of terrain features which are used for or relate to transportation of vehicles, people, or materials over land.