Abstract: The present invention relates to a method for steering a vehicle (1) over a ground surface (4), wherein magnetic marking elements (5) are arranged in the ground surface at predetermined locations and wherein the vehicle is provided with a number of sensors (3) arranged adjacently of each other in transverse direction of the vehicle, wherein during travel of the vehicle the substantially vertical components of the magnetic field is measured in each of the sensors, and wherein on the basis of the intensities of magnetic field measured by the sensors an estimation is made of the position of these sensors relative to the magnetic marking elements, and thus of the vehicle relative thereto.

Abstract: The invention relates to a system for simultaneously navigating two or more vehicles over a surface of relatively limited dimensions at relatively high speed and/or densities of the vehicles. A central control unit has a computer with memory and a transmitter/receiver for communication with each of the vehicles. Marker elements are arranged on or above the surface and mark the position relative to the surface. The two or more vehicles have drive elements, steering elements, navigational devices, transmitter/receivers and sensor means for sensing the position relative to the markers. The central control unit uses time as well as the sensed position in controlling the vehicles on the surface to precisely control the traffic.