Abstract
This paper deals with a visual warning system for accidental hazardous factors with a driving support system. Especially warning of the pedestrian who will try to cross the road behind the parked vehicle. The prediction is coming from the inductive database of the navigation system. Sometimes warnings are failed because the warning is based on the hazardous probabilities. Then the warning in the peripheral vision that is called "ambient warning", is paid a attention. In this experiments with driving visual simulator using driving game machine, ambient warning is effective to inform the driver of the frequent hazardous information with a little nuisance.