we've driven it up and down the state. relatives in san diego and sacramento. road conditions are as you would expect for a major interstate. traffic can go from standstill to none depending on where you are and time of day. road surface can go from great to rippled. road work can be anywhere. cops can be anywhere (or nowhere). it can be anywhere from 2 lanes to 6 (or more) lanes wide. every type of vehicle ever made is on it: cars, delivery trucks, lots of semis, trailers, buses, rv's, motorcycles, etc. don't know what else to say.