Additional Information / Summary:

This updated text on speed measurement is now available. It is still a must for the radar or laser user with chapters on: The Speeding Problem, The History of Radar, How Radar Works, Future Radars, LASERS, Time-Distance Enforcement. All speed and distance references in this manual are now shown in both U.S. and METRIC. Book, highway traffic engineering expert Book , books,pavement edge drop expert, pavement edge drop off expert, work zone safety expert, construction zone safety expert, roadway hydroplaning expert, traffic engineering expert, traffic sign expert, traffic signal expert, pavement marking expert, highway safety expert