[OSRM-talk] Turning with bicycle / for pedestrians

Elisabeth Leu elisabeth.leu at camptocamp.com
Fri Jul 4 16:39:36 UTC 2014


Hi Emil

Thanks for pointing me to the right issues and your feedback!

Maybe we should work together on that issue (
https://github.com/DennisOSRM/Project-OSRM/issues/100), it is critical for
bicycle / pedestrian routing.

Best,
Elisabeth


On Fri, Jul 4, 2014 at 12:24 PM, Emil Tin <ZF0F at tmf.kk.dk> wrote:

>
>
> Hi Elisabeth,
>
>
>
> The issue with the example route you send is not turn restriction. For our
> service, we disabled all turn restrictions. As you point out they’re not
> really relevant  for cyclist. Even at intersections, you can always just
> become a ‘temporary pedestrian’ by pushing your bike.
>
>
>
> The problem with the example route is that OSRM doesn’t allow u-turns at
> via points. See https://github.com/DennisOSRM/Project-OSRM/issues/100 and
> https://github.com/DennisOSRM/Project-OSRM/issues/729.
>
>
>
>
>
> Note: For ibikecph.dk we’re running custom branch of OSRM:
> https://github.com/ibikecph/Project-OSRM/tree/edge.  It shows what parts
> of the route you need to push the bike, and also parses/prioritizes bike
> routes. I hope these things can be added back to main line
> OSRM.
>
>
>
>
>
> Med venlig hilsen
>
> *Emil Tin*
> IT- og Processpecialist
> Trafik
> _______________________________
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>
>
>
> Njalsgade 13 Vær. 118
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> 2300 København S
>
>
>
> Direkte
>
> 2369 5986
>
> Mobil
>
> 2369 5986
>
> Email
>
> zf0f at tmf.kk.dk
>
> EAN
>
> 5798009493149
>
>
>
> <http://www.sharingcopenhagen.dk/>
>
>
>
> *Fra:* Elisabeth Leu [mailto:elisabeth.leu at camptocamp.com]
> *Sendt:* 4. juli 2014 09:36
> *Til:* OSRM-talk at openstreetmap.org
> *Emne:* [OSRM-talk] Turning with bicycle / for pedestrians
>
>
>
> Dear OSRM Community, Hi Dennis,
>
>
>
> We are on the way to integrate OSRM for a hiking & cycling application in
> Switzerland, by defining adapted profiles for these use cases.
>
>
>
> We observe a unexpected behaviour - at least unexpected for bicycle and
> hiking routes. I'm using iBikeCPH to illustrate the example, but the same
> problem can be seen on http://project-osrm.org/ as well.
>
>
>
> In difference to cars, bicycles in most cases and pedestrians for sure can
> turn immediatly on a road without turn restrictions.
>
>
>
> Given I want to cycle from one S-Station to another in Copenhagen, with a
> stopover at a friend's place at Bellmansgade:
> http://www.ibikecph.dk/en#!/x65wv.7hmgt/x663x.7hfew/x65x8.7h71w
>
>
>
> Since I'm cycling / walking, it does not make any sense to go to the very
> end and back again in the small street - in reality I would turn
> immediately.
>
> The deviation also adds additional time (2mins) and distance to my route.
>
>
>
> The viapoint seems to be slighlty on the dead end way. Is there any option
> / possibility to avoid OSRM chosing a deviation, if the via point is just
> slightly (say some few meters) into to the street?
>
>
>
> I guess it would be depending on the profile - maybe there is a config in
> the LUA that could be used while calculating the network?
>
>
>
> All I saw after quite some searching was using turn restriction tags in
> OSRM (cf. [1] and [2]). As far as I read, my problem is different and
> rather basic: allowing turns at any time for biking / hiking profiles (and,
> maybe in a second step, restrict them according to OSM tags, for bicycles).
>
>
>
> Any opinions / suggestions / info about ongoing devs for that?
>
>
>
> Best regards,
>
> Elisabeth
>
>
>
> [1] https://github.com/DennisOSRM/Project-OSRM/issues/167
>
> [2] https://github.com/DennisOSRM/Project-OSRM/issues/477
>
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