[Routing] Pyroute / pyserver (was Updated pyroute)

[OJ W]

Just as a guess (I haven't investigated properly yet), maybe there's a
motorway_link or trunk_link somewhere?

the routing profiles are here:

http://svn.openstreetmap.org/applications/routing/pyroutelib2/weights.py

and might be missing some road types that OSM uses?



On Fri, Jun 20, 2008 at 8:35 PM, Mark Williams
<mark.666 at blueyonder.co.uk> wrote:
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> Having had another play, I see that the Pyrender map hasn't got the
> crossings at Dartford / Thurrock; the M25 just stops at J31! This is
> where it becomes the A282 to go over/under the river.
>
> The only error I can see is that someone has set maxspeed=50mph - not in
> map features but, I think, moderately accepted though I won't use it.
>
> Similarly, the A13 doesn't come up around this same junction. My route
> through London actually takes the A1306 (old A13) instead! I'm not sure
> at present why - I'm going to delete my cache & try it again while I'm
> out now...
>
> Mark
>
> OJ W wrote:
>> just a quick note on the weightings file:
>>
>> the number for each route type is a divisor for distance. so a value
>> of 3 means "I'd rather travel 3 miles on this type of road than 1 mile
>> on an unclassified road"
>>
>> At the moment, it has:
>>
>> 'motorway': {'car':10},
>>
>> so it will go 10 miles on motorway in preference to 1 mile on
>> unclassified road or 2 miles on primary road.  Those numbers are
>> probably wrong so feel free to change them - all the optimisations
>> I've done so far have been for cyclists.
>>
>> I suspect it's getting confused by the trunk roads through london, and
>> thinking they're the same as real trunk roads in ruralshire which you
>> can actually travel along at an appropriate speed.
>>
>> p.s. anyone know if our "toll areas" (e.g. congestion charge) are in a
>> consistant direction?  e.g. if they were all anticlockwise then you'd
>> know that crossing the boundary from right to left of the way incurs
>> the charge without having to download the whole lot and do an "is
>> inside?" calculation.
>>
>>
>>
>>
>>
>> On Fri, Jun 20, 2008 at 12:18 AM, Mark Williams
>> <mark.666 at blueyonder.co.uk> wrote:
>> OJ W wrote:
>>>>> Import should be complete now. Delete any cached data to see the new copy.
>>>>>
>>>>> the easiest way to check the data in your area is probably to run
>>>>> pyrender and view the slippy map in a web browser
>>>>>
>> OK, great - that works a lot better. I see it's optimised for shortest
>> distance - cross London rather than M25. I'll explore it later & see
>> what's tweakable.
>>
>> That took a few minutes to get to the far side of Wales, including
>> download (with the OSM servers down, so as tough as it's getting?) &
>> succeed on all my previous failed tests, so clearly the old data was the
>> answer. Additionally it finds my favourite routes ;)
>>
>> Well done, and thanks!
>>
>> Mark
>>>
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