Implement BING REST Traffic API in BingRestMapProvider. 

https://msdn.microsoft.com/en-us/library/hh441725.aspx 

This will allow clients request traffic incident.

This WON'T be enough to display traffic tiles or get congestion data - this usage is limited. Check answer from R. Brundritt =>

https://social.msdn.microsoft.com/Forums/en-US/20020cb8-5e8f-4fe6-abda-ffdcc0edb77e/bing-map-rest-traffic-api-congestion?forum=bingmapssilverlightwpfcontrols 



Note: The following tutorial might be helpful if clients need to use BING REST Traffic API outside RadMap. https://msdn.microsoft.com/en-us/library/jj819168.aspx

Note: In R2 2017 BingMapTrafficProvider will be deleted from our code base due to limitations in the BING Maps Developer API terms of use. Also the service which is behind this provider might be stopped in 2017 so applications using this provider with old version of UI for WPF/ Silverlight might also stop working properly.