I have written on car electronics trends on my Car Electronics 2012 posting, and followed on the later news on the topic on the comments. It is well known that cars have become and are becoming as big moving intelligent always connected mobile devices.
There are also plans to make the roads intelligent. Intelligent Roadways Pave Way To The Future article presents an interesting intelligent road concept idea. The idea is to build solar powered roadways with intelligence built into them. The road is built from six-sided modules that have solar panel, intelligence and LEDs built into package that can well withstand cars running over it. There are even integrated heaters to melt away snow and ice.
The technology will be expensive to start with, but there are plans that provide the mechanism for these expensive devices to pay for themselves. They have already caught the attention of the Federal Highway Administration, General Electric, and even Google. If their Indiegogo campaign is successful, they will be able to test their concept in a few parking lots. It was estimated in the article that on a large scale, the smart road will create enough electricity to become a decentralized power grid, and provide a means of getting WiFi and fiber optic lines to rural places.