A driving assistance method for a vehicle traveling on an infrastructure, comprising a magnetic marking formed on or in said infrastructure and adapted to encode information intended for said vehicle, said vehicle having a detection device which comprises a plurality of magnetic sensors placed on board said vehicle to detect a total magnetic field comprising the magnetic field generated by the magnetic marking, and to produce signals representing said total magnetic field, and a processing unit for the representative signals, the method comprising the following steps:
- a) using the plurality of magnetic sensors to measure the total magnetic field,
- b) using the processing unit to determine the information encoded in the magnetic strip on the basis of said representative signals,
- c) using the processing unit to determine a first distance between said vehicle and said magnetic marker on the basis of said representative signals,
- d) transmitting said encoded information and said first distance to a module forming an interface with the driver of the vehicle.