title: How to get geo coordinates of road?
body: <p>I'm trying to create a corridor along a road. Therefore I need some kind of a coordinate set. Currently I'm requesting a route and using it's coordinates. But with this approach I run into problems if there is a long segment, eg. 200km on a highway. If I only use the position of the instructions when getting onto the highway and when exiting it, the corridor may miss some parts of the road since it may not be a straight one.</p>
  
  <p>So what I'd like to do is, query the "major" road coordinates of a road. For now it does not matter if id needs an ID or the road name or any coordinates. </p>
  
  <p>I'm currently working with HERE maps, but if there is any other service which may fulfill my requirement, I'm open to review and test it. I also reviewed google-maps api, but still not found a service or any similar approach. 
  Thanks in advance.</p>