|Feature : Buses|
|A form of public transport|
Buses, coaches and trolley buses are forms of public transport that operate mainly on the road network. The system consists of bus routes calling at bus stops and bus stations and have a number of related features.
Stops and bus stations
The simplest way to map bus stops is using a node or polygon tagged public_transport=platform beside the highway at the point where passengers would wait immediately prior to boarding the vehicle. This may be in a suitably positioned bus shelter, or by the bus stop pole. It might be a few meters from the point where one enters the vehicle. Add the name of the stop (as it appears on the stop, or on a timetable).
Stopping positions and platforms
To map a bus stop more exactly one can additionally use a node on the way tagged public_transport=stop_position which represents the position where the bus stops on the main carriageway or in a bus_bay=*. To combine the stop position and the platform to one bus stop, a relation public_transport=stop_area is used. This relation contains all the information about the stop like name, references, operator and network.
Bus services (e.g., No. 38) are mapped by marking all elements that belong to a route on members of a relation. This includes all the road segments (ways) the bus runs along and the bus stops (nodes or sometimes polygons) the route serves.
To hold the variant-relations together, another relation is used with type=route_master+route_master=bus/route_master=trolleybus. It only contains the variant-relations and information that is relevant for the whole service like ref=38.
Bus lanes and tracks
Main article: Bus lanes
There are two schemas in common use in OpenStreetMap for representing bus lanes on normal roads: the busway=* (or bus_bay=*) scheme which indicates the presence of at least one bus lane (or bay) on one or more sides of the road, and the lanes:psv scheme which provides a count of lanes reserved for public service vehicles (which include buses) and their directions. Both schemes are compatible with cycleways. Both can be used at the same time; for more information see Bus lanes.
The two commonly used schemas suffice for most maps. However lane-specific information applicable to bus lanes can be captured too with the advanced :lanes suffix.
The following sites render bus routes (based on relations data)
- Öpnvkarte (http://öpnvkarte.de/ or alternatively http://www.openbusmap.org/ or OSM Inspector Public Transport - Network) Worldwide public transportation maps.
- OSMTransport Render bus, tramways, railways lines worldwide. Takes colour of lines into account.
- Openmap.lt : rendering close to the one of openbusmap.org
- Transport Map layer created by Andy Allan showing public transport lanes worldwide (available in OSM slippy map).
- OverPass Turbo request (takes colour into account) : http://overpass-turbo.eu/s/qwr
Bus routes by country
- Proposed_features/Public_Transport (Approved 2011-04-20)
- Proposed features/Public_transport_schema
- any type of motor car roads in the class "highway" like primary/secondary/tertiary/unclassified/residential/etc.