Automatic speed warning sign : Hampshire trials /

Bibliographic Details
Main Author:	Helliar-Symons, R. D.
Corporate Author:	Transport and Road Research Laboratory
Other Authors:	Wheeler, A. H., Scott, P. P.
Format:	Book
Language:	English
Published:	Crowthorne, Berkshire, [England] : Transport and Road Research Laboratory, 1984.
Series:	TRRL laboratory report. no. 1118.
Subjects:	Traffic signs and signals > Great Britain > Testing.

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