7.9.2.1 IfcRoadPartTypeEnum

7.9.2.1.1 Semantic definition

The predefined type container that collects all possible road facility part types together into the implemented enumeration.

7.9.2.1.2 Type values

Type	Description
`BICYCLECROSSING`	Designated level crossing over a road for cyclists.
`BUS_STOP`	Lateral part of Road for stopping buses allowing them to draw out of the traffic lanes and wait for short periods.
`CARRIAGEWAY`	Unitary lateral part of Road built for traffic. Carriageway may comprise several kinds of traffic lanes and lay-bys, as well as traffic islands, and in case of dual carriageway road they are separated by central reserve. NOTE Definition from ISO 6707-1: part of the road or highway constructed for use by vehicular traffic, including auxiliary traffic lanes, passing places, and lay-bys (US:Roadway).
`CENTRALISLAND`	The center of a roundabout not intended for traffic, can be painted or upraised.
`CENTRALRESERVE`	Lateral RoadPart separating two carriageways of the same road or separating traffic lanes and sidewalk. NOTE Definition from ISO 6707-1: area that separates the carriageways of a road with dual carriageways, (US:Median, UK:Central reservation).
`HARDSHOULDER`	A type of Shoulder that is surfaced, providing for safe use by vehicles in distress. NOTE Definition from ISO 6707-1: surfaced strip, adjacent to and abutting a carriageway, intended for use by vehicles in the event of difficulty or during obstruction of the carriageway, (Emergency lane, Service lane, US).
`INTERSECTION`	At-grade junction where two or more roads meet or cross. Intersections may be further classified by number of road segments, traffic controls, and/or lane design.
`LAYBY`	A lateral part of Road where vehicles can divert from ordinary stream of traffic.
`PARKINGBAY`	Lateral part of Road for parking vehicles. NOTE Definition from ISO 6707-1: Area intended, and usually designated and marked, for the parking of a vehicle.
`PASSINGBAY`	A lateral part of Road that is a widening of an otherwise single lane road where a vehicle may move over to enable another vehicle to pass.
`PEDESTRIAN_CROSSING`	Designated level crossing over a road for pedestrians.
`RAILWAYCROSSING`	At-grade crossing between road and railway.
`REFUGEISLAND`	A raised platform or a guarded area so sited in the carriageway as to divide the streams of traffic and to provide a safety area for pedestrians.
`ROADSEGMENT`	Longitudinal, linear segment of a road, either defined by uniform characteristics, or as a transition segment (e.g. number of lanes changing).
`ROADSIDE`	A lateral RoadPart located along the Road adjoining the outer edges of the Shoulders. A general concept comprising the areas outside RoadwayPlateau not intended for vehicles.
`ROADSIDEPART`	A general concept for various parts of the Roadside. NOTE Examples of roadside parts may be side slopes, roadside ditches, back slopes, bunds etc.
`ROADWAYPLATEAU`	Lateral part of Road comprising the carriageway(s), shoulders and medians.
`ROUNDABOUT`	Type of at-grade junction at which traffic streams are directed around a circle. NOTE Definition from ISO 6707-1: portion of a road usually at a junction, on which traffic moves in one direction around a central element.
`SHOULDER`	A lateral part of Road adjacent to, and usually at the same level as the Carriageway; not intended for vehicular traffic but may be used in case of emergency. NOTE Definition from ISO 6707-1: part of a highway alongside a carriageway and at approximately the same level, exclusive of embankment or cutting slopes, (Shoulder, US). NOTE Definition from PIARC: Part of the roadway between the carriageway and the ditch or the (cutting or embankment) slope, which gives the carriageway lateral support.
`SIDEWALK`	A footpath along the side of a road. May accommodate moderate changes in grade (elevation) and is normally separated from the vehicular section by a kerb. There may be a central reserve or road verge between the sidewalk and traffic lanes. NOTE Definition from ISO 6707-1: portion of a road reserved exclusively for pedestrians, (Sidewalk, Walkway, US) (footway).
`SOFTSHOULDER`	A type of Shoulder that is not surfaced. NOTE Definition from ISO 6707-1: strip alongside a carriageway not intended to support vehicular traffic. NOTE Definition from PIARC: Shoulder not intended to support vehicular traffic.
`TOLLPLAZA`	A part of road facility where tolls are collected for use of toll road, tunnel or bridge.
`TRAFFICISLAND`	A central or subsidiary area raised or marked on the carriageway, generally at a road junction or level crossing, shaped and placed so as to direct traffic movement and/or provide refuge for pedestrians.
`TRAFFICLANE`	Lateral part of carriageway designated to vehicular traffic for a particular purpose. NOTE Definition from ISO 6707-1: strip of carriageway intended to accommodate a single line of moving vehicles, frequently defined by road markings.
`USERDEFINED`	User-defined type
`NOTDEFINED`	Undefined type.

Table 7.9.2.1.A

7.9.2.1.3 Formal representation

TYPE IfcRoadPartTypeEnum = ENUMERATION OF
	(BICYCLECROSSING
	,BUS_STOP
	,CARRIAGEWAY
	,CENTRALISLAND
	,CENTRALRESERVE
	,HARDSHOULDER
	,INTERSECTION
	,LAYBY
	,PARKINGBAY
	,PASSINGBAY
	,PEDESTRIAN_CROSSING
	,RAILWAYCROSSING
	,REFUGEISLAND
	,ROADSEGMENT
	,ROADSIDE
	,ROADSIDEPART
	,ROADWAYPLATEAU
	,ROUNDABOUT
	,SHOULDER
	,SIDEWALK
	,SOFTSHOULDER
	,TOLLPLAZA
	,TRAFFICISLAND
	,TRAFFICLANE
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;

7.9.2.1.4 References

IfcRoadPart