Automatic close-following warning sign at Ascot

Detalles Bibliográficos
Autor Principal:	Helliar-Symons, R. D.
Autor Corporativo:	Transport and Road Research Laboratory
Formato:	Libro
Idioma:	English
Publicado:	Crowthorne, Berkshire Transport and Road Research Laboratory 1983.
Subjects:	Electronic traffic controls > Evaluation. Traffic signs and signals > Great Britain. Traffic flow > Great Britain.