Abstract: Process for regulating traffic by means of moveable light signalling equipment (mobile traffic lights; A, B), particularly at restricted areas (E), using sensor controls which prescribe go times (green phases, T.sub.F) and clearance times (red phases T.sub.R) in the area to be secured, i.e. along a blocked stretch (S), wherein the transit time (T.sub.D) of vehicles (F) over a measured distance (M) extending substantially along the blocked stretch (S) is measured and the clearance time (T.sub.R) is established as a function of the transit time measurements (T.sub.D) obtained.