Transport regulations had two objectives :

- ensure the conservation of public roads or at least, limit their deterioration;

- reduce the number of traffic accidents in order to ensure the safety of road users, especially those taking public transport.

Between 1624 and 1921, the severe regulations applied to vehicules transporting passengers or merchandises acted as a brake upon the economy of the country.

Those designed to regulate the traffic flow and parking, the base of our present highway code, were not originally due to the volume of the traffic, not to the speed of the vehicules, but to the conflics which existed between hauliers and mail-coachs drivers in France at the end of the Old Regime and during the Revolution.