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.