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.