Toyota City,Japan, May 26, 2011—Toyota Motor Corporation (TMC) will add a function to its onboard navigation systems that gives on-screen and voice alerts to wrong-way drivers. Jointly developed with Aisin AW Co., Ltd. and Denso Corporation, the function monitors vehicle direction on highways and selected toll roads, including at tollgates, service area ramps, turn-offs and junctions. It will be incorporated into navigation systems available as dealer-installed options inJapanfrom June 1.
The new function was made possible by advances in communications-based map-updating technology and in pinpoint position-recognition technology that uses information from GPS, gyro, vehicle-speed and other sensors to determine accurate vehicle movement.
In recent years in Japan, approximately 1,000 wrong-way driving incidents are reported annually, with a higher percentage of senior drivers involved than in other kinds of traffic incidents.
Going forward, TMC—striving to do its part in contributing to a society free of traffic accidents—remains committed to manufacturing people-friendly vehicles that improve the safety and peace of mind of drivers and pedestrians.
 Gyro sensors are used to identify vehicle direction
 Analysis based on reports to East Nippon Expressway Company Limited, Central Nippon Expressway Company Limited and West Nippon Expressway