New Traffic Lights Speed Seattle Traffic

"Although programming traffic lights may appear simple...it works only when based on extensive and accurate data. Once the data are collected, the programmers must balance the needs of everyone that uses intersections. The basic philosophy is to increase the number of green lights a motorist can travel through before eventually encountering a red light. But that must be balanced with the needs of side-street motorists, -- bicycles and pedestrians..."

Thanks to Joshuah Mello