title: Road with traffic on MKMapView
body: <p>I have a question about the MKMapView component. I saw that on the native "Map" iOS app, we can draw the roads between different points and we can display the traffic for those roads. Well, that's exactly what I want to do for my app :)</p>
  
  <p>So, I have two questions :</p>
  
  <p>1) Firstly, how can I draw roads on a map. I read a lot of things about MKOverlay, about some samples which do that with JavaScript in UIWebView but what's the best way to do this ?</p>
  
  <p>2) How can I know the traffic on a particularly road ? In order to draw the road in green, orange or red.</p>
  
  <p>Thanks a lot !</p>
  
  <p>Regards,
  Sébastien ;)</p>