What state has the most efficient highway and road network

[djlynch]

I move to rename the thread "What city has..." Current question is far too vague to debate with civility.

Though, right off the bat, I've always been impressed by Texas. Though, I didn't enjoy the traffic last I was there (mainly Houston).

A lack of an all-freeway connection between Houston and Austin pretty much disqualifies Texas, though.

It's definitely a point against Texas, but I don't think that it's so bad that it should be disqualifying. IMO, the bigger issue is that there are relatively long stretches of interstate that are too busy to still only have two lanes each way (I-10 between Katy and San Antonio and I-35E between Hillsboro and the southern fringes of Dallas come to mind.)