The intention of this paper is to give a bright review of a process triggering equipment that is connected to the inductive loop when a vehicle is moving above it. First, we tried to approximate the bottom of the vehicle with rectangular loop. On that base we developed a simulation model of a vehicle moving above the loop. Then we measured the triggering point on the real condition. The intention of these measurements was to find how the triggering point depends on position of the vehicle (vehicle offset) above the loop and how it depends on the vehicle velocity. On the basis of the obtained results that are shown in this paper, it becomes more clear when the triggering of the equipment that is connected to the inductive loop occurs when a vehicle is moving above the loop.