<p>osrm returns the travel mode for each part of the route, encoded as an integer defined here:<br>
<a href="https://github.com/Project-OSRM/osrm-backend/blob/master/profiles/car.lua#L147">https://github.com/Project-OSRM/osrm-backend/blob/master/profiles/car.lua#L147</a></p>

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