A new enforcement tool to monitor motorists’ speed statewide has gone into effect. Work zone speed enforcement cameras are live all over Pennsylvania as part of the five-year program that began yesterday. Lawmakers hope the program will protect roadway workers during construction season. As part of the initiative, 17 camera-equipped vehicles will be in various work zones on interstates and the Pennsylvania Turnpike. The cameras will specifically target drivers going eleven miles or more over the issued speed limit.