[Tagging] traffic=fast

[Richard Mann]

There's usage=main and usage=branch, but that is pretty crude. You might
use that to reproduce the old BR network map (before Railtrack/NR went and
made all the lines the same width).

The norm on four track railways is for two of the lines to be designated
the fast lines (or main lines on Great Western) and two to be designated
the slow lines (or relief lines on Great Western). The naming isn't as
clear if the pairs of lines diverge (eg the lines that bypass Redhill on
the way to Brighton), but the idea is basically the same.

Richard

On Thu, Aug 9, 2012 at 12:31 PM, Colin Smale <colin.smale at xs4all.nl> wrote:

>  As every track segment has a maximum speed, why not just apply the
> existing maxspeed=* tag to the tracks? It is not clear to me whether your
> intention with traffic=fast refers to some attribute of the track itself,
> or the use to which it is put. Is it some "official" designation (from
> Network Rail)? I recall also seeing things like service=main_line (from
> memory) to distinguish main line from local tracks.
>
> Colin
>
>
> On 09/08/2012 11:33, Richard Mann wrote:
>
> There's two things that distinguish HSLs/LGVs/NBSs: high maxspeed
> (typically 250-320, though some would include the new lines in Switzerland,
> which are "only" 200), and a lack of slow traffic (freight, stopping
> passenger services) because they have alternative routes.
>
> In some cases, you can get pretty high speeds without providing a second
> pair of lines, if traffic is sparse (upto 200kmh in the UK, upto 230kmh in
> Germany), so I think the presence/absence of a parallel slow route is
> something that can usefully tagged explicitly.
>  Richard
>
>
> On Thu, Aug 9, 2012 at 12:21 AM, St Niklaas <st.niklaas at live.nl> wrote:
>
>>  Hi taggers,
>>
>> Colins question are there more countries with different speed rules
>> on tracks ? Yes all the TGV like tracks in Europe through, France, Germany
>> and Netherlands are specially build for TGVs but somewhere there still
>> tracks combined, limited speed up to 100 miles / hr.
>>
>> Hendrik
>>
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