The UAE is investing $125m in a system that will make it possible to determine the speed of any of the Gulf state’s 2m vehicles, no matter where they are. New devices, now being developed by the UAE’s Centre of Excellence for Applied Research and Training (CERT) in conjunction with IBM, should be ready for installation in cars within four years. Once fitted, these devices will use GPS satellites to determine the car’s location to within a few metres. By combining several position and time measurements, it is a simple matter to determine the car’s speed. This can then be compared with a database of speed limits for all roads. If the vehicle is breaking the local speed limit, the system will issue an audible alert, warning the driver to slow down. The system will be able to inform a central government server of such ‘events’ via the mobile-phone network.