Google have just updated their Maps website service to offer up-to-date traffic conditions in more than 30 major U.S. cities to help everyone plan their route and schedule. When traffic information is available, it can be overlaid via a single button in the updated Maps interface to give a fast, colour-coded readout of the current traffic speeds. Red indicates a stop-and-go commute of less than 25 mph, yellow means that cars are moving along at a moderate 25 - 50 mph, and green is what everyone wants - a comfortable cruise at more than 50 mph.
Analysis: Optimising traffic flows is an intricate science with big rewards environmentally and socially every time you can tweak a traffic system to get people home five minutes earlier. Knowing what roads to avoid on a particular day should see everyone win, especially you and your fuel budget.