[Tagging] What's the proper way to map multiple rail tracks in a street?

Simon Biber simonbiber at yahoo.com.au
Thu Jun 24 03:21:47 BST 2010


On Thu 24/6 at 11:18 AM, Nathan Edgars II wrote:
> That doesn't make sense. A multilane road is a continuous paved area,
> while rail tracks are separate, like a dual carriageway road. You can
> move continuously between lanes of a road (including to the other side
> if you U-turn), but trains can only switch tracks at crossovers.

Exactly. Multiple tracks are logically separate ways. I think mapping multiple tracks as a single way is reasonable as a temporary measure when first mapping an area, or as a permanent measure where we don't have adequate imagery or access to resolve the correct position of each track.

Multiple tracks as a single way can also present problems, for example, where a multiple track section splits into two single track sections which diverge around an island station. I don't know of a renderer which can handle that while showing that the 2 tracks never meet each other.

Regards,
Simon.



      




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