[Talk-transit] Public transport validator+generator from Maps.Me

[Tijmen Stam]

On 11-06-19 18:13, Alexey Zakharenkov via Talk-transit wrote:

Thank you for the list!

There are a few I have questions about, either about your validator or 
about the general use of the transit tags.

> *) "Missing station=<mode> on a feature".
> Requires that railway=station/halt object be tagged with 'station=subway/light_rail/monorail' or have '<mode>=yes’. ’train’ mode is silently assumed for railways.

I am not convinced that a station-tag is necessary on subway/lr/mr stations.

> *) "Angle between stops around <station> is too narrow, <number> degrees".
> A sharp twist of a route most probably indicates incorrect stops order.

I don't understand what exactly is measured with this. E.G. the relation 
https://www.openstreetmap.org/relation/7786749#map=16/50.6893/3.1734 
(France->Lille), Euroteleport is given as having a too narrow angle, 34 
degrees. 34 degrees between what and what? And what is the cutoff?

> *) "Route has different network from master"

Why would you include a network in a route if the route has a master?

> *) "Stop area belongs to multiple interchanges"

What do you mean with this?

> *) "Only one route in route_master. Please check if it needs a return route".
> Non-circular route must have a reversed one. For circular route this is a warning.

As Jo already said, there are many one-way routes. E.g. our routes 250 
<https://www.openstreetmap.org/relation/6735888> and 612 
<https://www.openstreetmap.org/relation/8465089> in North-Holland are 
one-way routes (in both cases because they are a morning-peak 
reinforcement of another route, namely the 350 and 412)

> *) The validator also compares the number of found stations/routes in a network with predefined values from CSV. This kind of checksumming helps to detect station/route disappearing or opening new ones.

Good!

> **) Warnings are generated about missing/wrong station/line colour, different colour/ref of route and route_master, holes in rails,  "Subway entrance is not a node", "Stop position in a 'platform' role in a route", "Platform in a 'stop' role in a route", "Stop is too far from tracks", "Stop position is not on tracks", "Tracks seem to go in the opposite direction to stops".

Speaking about colours: there are some interesting colouring systems in 
the Netherlands.

U-OV (Utrecht city bus) does not have "line" colours, but "destination" 
colours.
All buses going to the Uithof would be orange, while all buses going to 
Vleuten are blue and to Utrecht central station are Red.
So a line 28 that runs from Vleuten via the central station to Uithof 
has orange as line colour, while the opposite direction, which is also 
line 28, is blue. A short working from the Uithof to the central station 
has red, while it's opposite (going to the Uithof) would still be orange.
See 
<http://wiki.ovinnederland.nl/wiki/Concessie_Regio_Utrecht#Bestemmingskleuren> 
for the list of colours.

In Amsterdam, the subway has line coulours, but the tram lines don't 
have colours on the trams, but colour combinations.
Originally designed for illiterates, this system continues to work today 
and is shown on all trams.
See 
<http://schomakers.net/Website-Arial-NL/Lijnkleurcombinaties-Arial-NL.html> 
for the list of all combinations and 
<https://www.iamsterdam.com/media/transportation-and-schiphol/trams-cs-2015nc.jpg> 
for a photo of three trams showing it (the older ones are even refitted 
with an electronic LED-display being able to show much more, such as a 
crown for the special "kingsday-lines" or a sailboat for "sail"-festival 
lines. (But those are one-day-a-year lines not mapped on OSM).

greetings,

Tijmen/IIVQ