title: Change vehicle profile on viaroute request in OSRM?
body: <p>I am developing an application based on OSRM that provides distances in kms and minutes starting from a list of addresses.</p>
  
  <p>I am using the request "viaroute" to get back the desired information.
  This is an example of request:</p>
  
  <pre><code>http://router.project-osrm.org/viaroute?loc=52.503033,13.420526&amp;loc=52.516582,13.429290&amp;instructions=true
  </code></pre>
  
  <p>The response message contains the tag "total_time" (representing the time needed to reach the destination point starting from the source point). This value is computed by using a set of parameter characterizing the vehicle type.
  I would like to change the profile of the vehicle type (for instance: truck) to compute the "total_time" considering the maximum speed allowed for vehicle type used (ex: set the max speed in highway street to 110 km/h and not 130 km/h).</p>
  
  <p>Someone could help me for this issue?</p>
  
  <p>Thanks in advance
  Fabio </p>