Traffic congestion can be alleviated throughout a metropolitan area by altering the trips of drivers in specific neighborhoods
In most cities, traffic growth has outpaced road capacity, leading to increased congestion, particularly during the morning and evening commutes. One way to prevent traffic tie-ups is to have fewer cars on the road by encouraging alternatives such as public transportation, carpooling, flex time and working from home. But a new study — by Professor Marta González and researchers at Central South University in China, the University of California at Berkeley and the Austrian Institute of Technology — incorporates data from drivers’ cellphones to show that the adoption of these alternatives by a small percentage of people across a metropolitan area might not be very effective. However, if the same number of people, but from a carefully selected segment of the driving population, chooses not to drive at rush hour, this could reduce congestion significantly. Read a news release.