This week on Smart City, we bring you a special report: . Gas prices have reached 4 dollars a gallon across the country. Home prices have plummeted. What does one have to do with the other. Our guest Joe Cortright is an economic analyst for Impresa Consulting in Portland Oregon. His new report, Driven to the Brink, shows how high gas prices are devaluing homes that are further away from amenity-rich city centers.

But what can you do about high gas prices if you can't move away from them? Smart City Producer Scotty Iseri brings us a special report about some of the best ways to get around a city that help alleviate the gas crunch.