A rule can be applied for maintaining safe distance between the vehicles - keep a sensor on the back of each vehicle and it should light up in red preferably on the back glass with the letters showing 'keep distance' or something like that...
A rule can be applied for maintaining safe distance between the vehicles - keep a sensor on the back of each vehicle and it should light up in red preferably on the back glass with the letters showing 'keep distance' or something like that...