In effort to provide our Directions API users additional information on why a requested route failed, the Directions API will be updated with a new status message on Tuesday, January 17.

For time-dependent route requests in which the only possible path to the destination encounters a timed access restriction, the service will now provide a status message to let users know why the request resulted in no route. The purpose of the status message is to provide our customers with supplemental information on why a route was not generated.

Previous maneuver notes:

http://www.mapquestapi.com/directions/v2/route?key=KEY&timeType=1&doReverseGeocode=false&from=40.719469,-73.999462&to=40.746954,-73.995367

New status message:

http://beta.mapquestapi.com/directions/v2/route?key=KEY&timeType=1&doReverseGeocode=false&from=40.719469,-73.999462&to=40.746954,-73.995367

This release will take place during the maintenance window on Tuesday, January 17 and we expect there to be no impact to your services. Additionally, this update requires no update on your end.