More cameras and sensors are to be installed in Chesapeake, Virginia, in an effort to prevent traffic bottlenecks throughout the city. The city won a US$2 million federal grant to update the traffic management centre (TMC). The plan calls for adding about twenty cameras at key intersections, together with additional traffic sensors at intersections to aid the timing of traffic signals. Several intersections on main roads are already linked by wireless communication. The TMC serves as the command and control