click here to see our interactive radar map.)Track California highway road conditions hereHere is where you can search Caltrans road conditions by highway and see if chain controls are in effect.

The U.S. Department of Transportation provides detailed ... road surface conditions are measured using an International Roughness Index, an objective measure of road conditions. So how does ...

The road quality metric is one of many that factor into the overall Best States rankings. See the Best States methodology for a detailed look at the data behind the analysis. 50 States #1 in Road ...