Red Road On Google Maps: Gray means there is no data available. The google maps traffic color legend means green has no traffic delays, orange medium traffic, and red means traffic delays. Web 10 here is an official google blog post that contains a color legend:
Red Road On Google Maps

Gray means there is no data available. Web what do the colors mean in google maps? To show you the different levels of traffic, google maps uses various.
Red Road On Google Maps: To show you the different levels of traffic, google maps uses various. Black and red roads indicate traffic. Roads that are green indicate that traffic is.
