Traffic signals 5 reports ; prepared for the 52nd annual meeting.

Traffic signals 5 reports ; prepared for the 52nd annual meeting.

מידע ביבליוגרפי
מחבר תאגידי: National Research Council (U.S.). Highway Research Board
פורמט: ספר
שפה:English
יצא לאור: Washington, D.C. Highway Research Board, National Research Council 1973.
סדרה:Highway research record no. 445.
נושאים:
Traffic signs and signals.
Electronic traffic controls.