[OSM-talk] Bus Stops

Mike Collinson mike at ayeltd.biz
Sat Aug 11 16:07:32 BST 2007


Excellent background information for basing our models. Thank you Peter.

Mike

At 07:21 AM 11/08/2007, Peter Miller wrote:
>The conventional way of handling Bus Stops in the public transport industry is to have a node for each individual point at which one can get on a vehicle, so if there are two bus stops on opposite sides of the road then they are represented as two nodes. If there are three bays in a row on one side of the road then they are represented a 3 nodes in a row. Every Bus Stop in the UK has a unique code, and this is sometimes printed on the bus stop itself.
> 
>In the EU standards they are called ‘Stop Points’ (rather than Bus Stops) so they can cover buses, tram, rail, ferry planes etc.
> 
>In railway stations there is a Stop Point for each Platform (and each bay in a bus station, each Gate for an Airport and each quay in a Ferry terminal).
> 
>Groups of local Stop Points (as they are called) are then arranged into Stop Areas where they are very close to each other.
> 
>These Stop Points are not within the road layer because Stop Points are a distinct dataset managed separately; they are then associated with a street, sometimes using the Street Name and sometimes based on proximity.
> 
>I recommend that we use ‘Bus Stop’ and ‘Stop Point’ for this low-level purpose and construct entities as we need them.
> 
>The database of all these points in the UK is called ‘NaPTAN’ (standing for ‘National Public Transport Access Nodes’), there are about 350,000 of them, and keen people can find additional information here:
><http://www.naptan.org.uk/>http://www.naptan.org.uk/
> 
> 
>A new CEN standard is in the process of being ratified, called IFOPT which can be used for describe much more complex transport interchanges, such as major airports and railways stations, detailing every corridor, lift, check-in desk escalator etc. CEN standards are used throughout the EU and beyond.
><http://www.naptan.org.uk/ifopt/>http://www.naptan.org.uk/ifopt/
> 
> 
>There is also a modelling standard for public transport in general published by CEN called transmodel which covers the modelling in general and is used behind most professional transport products used in Europe.
><http://www.transmodel.org/>www.transmodel.org
> 
>Of course, I am not proposing that we ‘implement’ all of the above, but where we choose modelling approaches and terms for entities it would be sensible to choose the same names.
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