Commute traffic enters Highway 4 westbound at Railroad Avenue in Pittsburg, where metering lights may get the green light in Pittsburg Calif., on Tuesday
Commute traffic enters Highway 4 westbound at Railroad Avenue in Pittsburg, where metering lights may get the green light in Pittsburg Calif., on Tuesday Feb. 26, 2013. Plans are rolling forward to add metering lights in Pittsburg and North Concord by the end of the year and through Martinez and Antioch by 2015. The addition of the signals on Highway 4 and Highway 242 during peak commute hours aimed at improving traffic flow on one of the Bay Area and nations most punishing commutes. (Dan Rosenstrauch/Staff)