Travel time matrix with origins and destinations?

[emiltin]

Would it be possible to provide origins and destinations separately to the travel time matrix calculation?

For example, you could provide a list of homes and a list of stations, and get all travel times between home-station, but not between home-home or station-station.

[DennisOSRM]

yeah, that's totally feasible. Flagging as a feature request.

[emiltin]

cool

[emiltin]

btw, it would also cover one-to-many and many-to-one scenarios.

[kaligrafy]

any news on this?
I am finishing a transit routing engine and I would like to accelerate a bit the time required to fetch travel time between walkable stops and origin :-) the network latency is the culprit here, since I have to send a separate request every time.

[WebJumper]

I need distance and time matrix - is there any timeline for this feature request?

[felixguendling]

I've implemented a one-to-many search that also calculates distances (not only times). See PR #1162 .

the network latency is the culprit here, since I have to send a separate request every time

It's possible to use OSRM as a library. That saves you the marshalling, un-marshalling and of course (most importantly) the network delay.

[kaligrafy]

Can you elaborate a little more on how I could implement OSRM as a library? I am using rails for the server-side framework for the transit calculator. For now, I route foot routing requests directly to osrm-routed on localhost.

[felixguendling]

For my measurements (concerning the one-to-many routing) and other application code I wrote a little wrapper (for my one-to-many/many-to-one plugin and the original distance-table plugin) that uses some ideas from the example code located in Tools/simpleclient.cpp. For me it was easy to use the wrapper because the surrounding client code also is written in C++. For use in other languages like Ruby, Python, Java, etc. there are many possibilities to create (or even generate) language bindings for native code (i.e. OSRM: one small wrapper per plugin). If someone is interested, I can publish the wrapper code for the distance table and for my one-to-many plugin that I've used for my measurements.

But if the OSRM service is running in a different process on the same host, the latency should be very small. So I would try to measure where the most time is spent before implementing a Ruby OSRM plugin to avoid the "network" (for localhost there's no real network in between) by doing direct calls into native code.

Just noticed: there are bindings for NodeJS. Perhaps you find some useful code there:
https://github.com/Project-OSRM/node-osrm

[yusufumac]

Any update on this feature? I would be great to query with NXM matrices.

[TheMarex]

@yusufumac #1452
If you want to lend a helping hand, let me know.

[rCarto]

+1

[frodrigo]

Released in 4.9.0 can be closed.