Through a carefully planned, step-by-step process, the Advanced Explosives Demolition Inc. Team and City Officials determine a perimeter, which must be cleared to absolutely guarantee safety of all residents and personnel. Based on prior experience, the area is normally 500 to 1000 feet around the buildings being imploded during the actual detonation of the demolition charges. There are actually two perimeters: the Primary Exclusion Zone and the Secondary Exclusion Zone. The Primary Zone allows the passage of essential personnel that are directly related to the blasting operations; no vehicles or pedestrians are allowed in this area. The Secondary Zone allows regular every-day passage of vehicles and pedestrians. Police and security personnel will enforce these safety perimeters.