In response to increasing demands for traffic law enforcement, the Swiss company Multanova AG has developed its MultaStar system, based on a modular concept, which provides maximum flexibility to meet various enforcement needs. It is built round a CAN-Bus system, and can be upgraded as new modules and technologies are developed, such as those using radar and satellites. Its modules include a master controller, a power supply, a camera, a detector loop, a data interface, and a traffic light. A hand-held unit can set its basic functions, and a portable computer with Windows software can enter special functions. Its camera automatically records violations on 35mm black-and-white or colour film, and an automatic flash unit will be switched on if necessary. The camera takes a clear picture of the event, and also captures the driver's face in case positive identification is required by law. The MultaStar installation in San Francisco photographs any vehicle passing through a red light, and measures its speed when it crosses the junction. Two induction loops in the road sense the presence of a passing vehicle, and capture this event. Two photographs are taken of each vehicle violating a red light. The films are retrieved and processed daily, and analysed by an automatic computer system, which produces citation tickets.
Abstract