If you are traveling in California, Caltrans has a new website that could be useful for route planning:
Caltrans - Quickmap. It covers the entire state, and you can set it to show general traffic, lane closures/construction, CHP incidents, message signs and traffic cams. It might take some of the "adventure" out of a trip, but I like knowing about lane closings and major construction with enough advance notice to plan alternate routes.
Mrs. M