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You searched for: Creator Personal Names Plummer, Ralph W. Remove constraint Creator Personal Names: Plummer, Ralph W. Subject Topical Traffic signs and signals. Remove constraint Subject Topical: Traffic signs and signals.
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1. A Recommended clearance interval signal indication for protected left turns.

Creator Personal:
King, L. Ellis., Plummer, Ralph W.
Title:
A Recommended clearance interval signal indication for protected left turns.
Call Number:
P11931
Date:
1973
Description:

Pamphlet. "WVaDH research project, 31." On cover: Engineering Experiment Station, West Virginia University. Sponsored by West Virginia Department of Highways in cooperation with U. S. Department of Transportation, Federal Highway Administration."

Subject Topical:
Traffic signs and signals.
All:
Traffic signs and signals.