Two solutions come to mind...1) stagger the work day into 3 seperate shifts so the entire populace doesn't have to hop on the road during "rush hour". There is no reason, with our globalist market economy and the invention of the lightbulb that mankind cannot work at any given hour of the night. By forcing production and shipping based industries like factories and truck drivers and maintanance crews to work at varying shifts, traffic will reduce by 2/3s. Have a 6-2 shift, then a 2-10 shift and a 10-6 shift, or some other variation and division. The end result will be less traffic, which means less gas being used/demanded, more gas in the supply and a lower cost of gas per gallon. As I nightowl, I am already fully adjusted to this system.
2) Solar panels are made of silicon and glass, mostly. Both come from sand. Why not then, dig the surface of the desert, and then erect solar panels across the entirety for our energy needs? Sure its expensive to start, but once you got the project rolling, set up sand digging construction sites, hired the technicians and contractors, etc... you'd find that there's nothing cheaper than digging sand in a desert, turning it into solar panels, and then sticking up those panels over the same desert where they came from. It's all just sand and labor, and we have PLENTY of that available given our current unemployment rate, sheer number of migrant workers and vast deserts of barren sand. We certainly aren't farming or living there anyway.