[Routing] Question about OSRM Travel delay computing

[Daniel Hofmann]

OSRM derives speeds and durations from OpenStreetMap tags such as
`highway=`, `maxspeed=`, traffic signals, road width, number of lanes, etc.

You can check the profiles for details:

https://github.com/Project-OSRM/osrm-backend/tree/master/profiles

Here's the demo server's debug map showing derived speeds:

http://map.project-osrm.org/debug/#13/37.7960/-122.4536

You will need historic or real-time traffic data for accurate ETAs
especially in congested areas such as cities; OSRM has a traffic feature
for that:

https://github.com/Project-OSRM/osrm-backend/wiki

Some hosted services provide real-time and historic traffic integration
such as Mapbox (disclaimer: I'm with Mapbox):

https://www.mapbox.com/api-documentation/#directions

HTH,
Daniel J H



On Tue, Aug 29, 2017 at 6:13 AM, Richard Saba <rsaba at galigeo.com> wrote:

> Hi,
>
>
>
> I have a problem regarding travel delay computed by OSRM. In some
> situations like in big cities, this delay is not realistic.
>
> For example in Paris, it’s 1 mn per 1km. Google maps estimates it at 5mn.
>
>
>
> Therefore, I would like to get answers to the following questions :
>
>
>
> 1-      What are the criterias (and steps if possible) used by OSRM 5.3.0
> while computing travel delay.
>
> 2-      What are the possibilities provided to enhance the results and
> make them precise.
>
>
>
> Best Regards,
>
>
>
> RSA7
>
>
>
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>
>
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