The overuse of road signs needs to be reduced. I don't know if this is normal in California or not.
There's like a (EX. "I-80 WEST Cityname here") sign every.. 1000 FT, it seems like. In RL they should be seperated by.. say, 5 miles?
I expected to see a simple interstate marker on the side of the road, like in RL.
Also, for goodness sakes, if you're going to block the god damn road to the LA Convention Center, don't do it at the bottom of the ramp.

The blocked off ramps are annoying enough. But stopping on the ramp and the only way to get back on the interstate is to go in reverse..
Also, implement more of the California traffic rules into the game. Why post these "tips" that have nothing to do with trucking traffic laws, when hardly any of them are in the game?
Such as keep the so-called "fast lane" (left lane) clear of 35MPH-going AI drivers.