Experimental changeable message sign system developed for new signal installation on U S Route 101 at Prunedale Junction, north of Salinas, Calif; object of new sign system is to widen gap selected by volume-density controller, by advising motorists who cross detector after controller has yielded because of waiting cross street traffic, that they must prepare to stop even though traffic signal ahead is still "green".
Prunedale signals
Traffic Eng
Traffic Engineering ; 32 , n 8
1962
2 pages
Aufsatz (Zeitschrift)
Englisch
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