A Comparison of changeable message signals for motorways .
By: Hodge, A.R.
Contributor(s): Rutley, K.S.
Series: TRRL Suplementary Report; 380.Publisher: Crowthorne, Berkshire : Transport and Road Research Laboratory, 1978Description: 26 p. : ill. ; 30 cm.ISSN: 0305-1315.Subject(s): Traffic signs and signals | Express highways -- Communication systemsNo physical items for this record
Includes bibliographical references.
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