Samenvatting
The ford radio road alert is a new method of providing information to the driver in a more easily used form. It uses coded messages from roadside transmitters which trigger a memory storage in the vehicle and cause recorded announcements to be made through the car radio whether it is on or off. A logic circuit automatically overrides a message being received if one of a more critical nature is required. The driver is assured of receiving the radio messages in a consistent format, with constant volume, and in all weather conditions. Using the radio road alert as a building block it will be possible to control vehicle speed automatically. The over-all system which results is comparable with emergency. See Pp. 553.