Windkanalstudien über den Einfluss von Verkehr, Immissionsschutzhecken und Immissionsschutzbauwerken auf die Abgasausbreitung an Strassen.

In a boundary layer wind tunnel systematic parameter studies were carried out on scale models of 1:200 to investigate the spreading of car exhaust emissions on roads. It was established that noise barriers offer effective, active protection against immission. Similar good immission protection is offered by wide vegetation belts.