[Tagging] Feature Proposal - RFC - More Consistency in Railway Tagging

Paul Johnson baloo at ursamundi.org
Sun Apr 14 17:18:22 UTC 2013

Well, even in tram systems, there's some degree of block signaling, even if
it's only where the track you're on crosses another track and otherwise
uses street signals.  Likewise, at least in the Portland system, light rail
signals in areas where the trains run on street or on a roadway median have
transit priority signals identical to what is ised for bus rapid transit,
usually with a repeater of the signal for adjacent traffic, since trains
can proceed under specific circumstances without a priority signal being
On Apr 14, 2013 8:56 AM, "Colin Smale" <colin.smale at xs4all.nl> wrote:

> **
> What about the difference in signalling systems? As I understand it, what
> I would call a Tram is completely under control of the driver. He/she alone
> decides when to stop/start, and even which way to go at junctions. They
> have "traffic lights" which are interconnected with the lights for other
> road users. One tram can approach the rear of another without any problem,
> just as other vehicles wait behind each other at junctions.
> What I would call Light Rail uses a more serious signalling system, more
> closely related to its "big brother" where train paths are pre-planned
> using some kind of (fixed/moving) block system.
> Is "tram" vs "light rail" an attribute of the vehicles, the service or the
> infrastructure? Can a single route transition from being one to the other?
> Colin
> On 2013-04-14 15:21, Rovastar wrote:
> It seems that the terms light rail and tram are used interchangeably around
> the world so mostly ignore my last comments. I don't know where this leave
> OSM tagging standards for them though. In the UK we do class them as
> different and it just show my sheltered life and knowledge on this
> subject.......
> --
> View this message in context: http://gis.19327.n5.nabble.com/Feature-Proposal-RFC-More-Consistency-in-Railway-Tagging-tp5756879p5757037.html
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