Traffic regulation at street crossings and plazas
New methods of traffic regulation in Essen, Germany
Light signals for traffic regulation
Space required in parking of passenger automobiles
Experience regarding automatic train control
New traffic ordinance of Berlin
Quantitative comparison of traffic regulation plans for multiple street intersections
New street traffic policy in Great Britain
New Austrian Traffic Regulations
Traffic regulation at railroad station and cathedral square in Cologne
Traffic exhibits at German building exhibition, Berlin 1931
European conference for highway traffic in Geneva
Platzgestaltung und Verkehrsregelung
Das DVL-Gleitwinkelsteuer (Bauart W. Huebner)
Die verkehrspolizeilichen Aufgaben und Massnahmen
Traffic development and control
Problems of traffic police in rural towns
Ueber neuere englische Arbeiten zur Frage des Leitwerkschuettelns
Bedeutung und Zukunft des Radfahrverkehrs
Traffic, parking and garage problems encountered in cities