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Details for Request 4-37
| Request Type: |
Experiment |
| Requesting Agency: |
Cities of Everett and Tumwater |
| State: |
WA |
| Date of Request: |
6/10/1981 |
| Topic: |
Flashing Circular Yellow for Protected-Permissive Left-Turns |
| Affected Portions of 2009 MUTCD: |
Section 4D.20 |
| FHWA Ruling: |
6/21/1982 – Approved request to experiment, with conditions. 1/9/1991 – Terminated experiment due to JHK study showing no improvement over circular green. |
| Approval Status: |
Approved |
| Keywords: |
Traffic Control Signals |
Contact Information:
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