Is there a way to generate an OSRM file using geojson information?

I am in possession of a geojson datafile that contains paths labeled as highway=footway, and I am interested in utilizing OSRM for finding routes between multiple points (similar to the travelling salesman problem rather than just the most direct route from A to B).

After examining the OSRM documentation, I discovered that in order to use customized data instead of OpenStreetMap data, I would require an OSRM file. This can allegedly be created by executing the OSRM binaries located in node_modules/osrm/lib/binding/ along with default profiles.

I find this process to be quite ambiguous and I am unsure how to proceed. Although the aforementioned documentation references the OSRM-backend documentation, I could not locate any information regarding the creation of OSRM files there. Even after obtaining the node_modules/osrm directory via npm, the osrm/lib/binding directory is empty...

What steps should I take to incorporate my data into OSRM routing? Alternatively, if there exists a simpler solution to my goal, what approach would you recommend?

javascriptnpmosrm

Answer №1

Through a specific process, I managed to generate an osrm file:

  1. To start, either convert the geojson file to osm using JOSM, or work directly with an osm file. In JOSM, you can open the geojson file and go to File > Save As... to save it in OSM file format.
  2. Add version, timestamp, and changeset tags using osmconvert:
$ osmconvert64 intput_file.osm --fake-author -o=output_file.osm
  1. Convert the osm file into a binary file with osmosis:
$ osmosis --rx input_file.osm --wb output_file.osm.pbf omitmetadata=true
  1. Utilize the OSRM Docker container to create the osrm file. First, ensure Docker desktop is installed:
$ docker run -t -v "absolute/path/to/data":/data osrm/osrm-backend osrm-extract -p /opt/profile.lua /data/file_name.osm.pbf
$ docker run -t -v "absolute/path/to/data":/data osrm/osrm-backend osrm-contract /data/file_name.osrm

Important Notes:

  • When executing the docker step, establish a data directory and ensure the absolute path to data points to that directory.
  • Ensure that the file_name used remains consistent between the osrm-extract input and the osrm-contract output, as OSRM creates additional files with that name which are required for the contract step.

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