1. A safety system for use in combination with a motor vehicle which transports personnel and which has periods of time during which said vehicle is stopped and undergoes loading or unloading of personnel, said safety system comprising first means for sensing the presence of a person within an area at least in close proximity to said vehicle and externally thereof, wherein said area is considered as a danger zone whereby any person within said danger zone is at risk of being injured by said vehicle if said vehicle should start into motion from its stopped condition, second means for creating a first sensory warning signal whenever said first means senses the presence of a person within said danger zone, wherein said first sensory warning signal is created within said vehicle to thereby make the driver of said vehicle aware of a person being detected in said danger zone, third means for creating a second sensory warning signal whenever said first means senses the presence of a person within said danger zone, wherein said second sensory warning signal is created generally externally of said vehicle to thereby make the person within said danger zone aware that said person' s presence within said danger zone has been detected and that said person is in said danger zone, means for producing a faux voice signal externally of said motor vehicle whenever said person is sensed as being in said danger zone thereby having said faux voice signal advise said person that said person is within said danger zone, and wherein said second means continues creating said first sensory warning signal and said third means continues creating said second sensory warning signal and said means for producing a faux voice signal continuous creating said faux voice signal at least for as long as said person is detected by said first means as being in said danger zone.