Toyota Motor Corp announced June 29, 2011, that it has developed a car navigation system supporting road-to-vehicle communication.
The car navigation system transmits information from optical beacons set up on roadsides to the vehicle. And it gives warnings to the driver based on the information to enhance safety. Toyota plans to equip its new vehicle to be released in the summer of 2011 with the system.
The system was developed under the vehicle-infrastructure cooperative DSSS (Driving Safety Support System) project, which is aimed at reducing traffic accidents through the use of Intelligent Transport Systems (ITS) and has been led by the Japanese National Police Agency.
In 2009, Toyota had an open test-ride event in Toyota City, Aichi Prefecture, Japan. The latest system was commercialized by using some of the services that have been developed since then.
Specifically, Toyota will offer the following five services. (1) The "red light warning" function sends a warning to the driver if the system detects the possibility of the vehicle running a red light at an intersection. (2) The "stop sign warning" function sends stop sign information to the vehicle. And if the system detects the possibility of the vehicle running a stop sign, it sends a warning to the driver.
(3) The "stationary vehicle ahead notification" function gives a notification to the driver if there is a stationary or low-speed vehicle ahead. (4) The "blind corner vehicle presence notification" function gives a notification to the driver if there is a vehicle around a blind corner.
(5) The "green light advance notification" function gives a notification to the driver to prepare for acceleration at an appropriate time prior to the traffic light changing to green.