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Incoming Interpretation Letter 2-670(I) - Meaning of Mandatory Left-Turn Sign with Respect to U-Turns

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Lamont A. Johnson, Traffic Ops
County of Henrico
Division of Traffic Engineering
10431 Woodman Road
Glen Allen, Virginia 23060

September 25, 2009

Federal Highway Administration
1200 New Jersey Ave., SE
Washington, DC 20590

Dear Sir or Madam:

I am seeking clarification, or your interpretation, of section 2B.21 of the Manual on uniform Traffic Control Devices. This section refers to Mandatory Movement Lane Control Signs; more specifically R3-5, the Mandatory Movement Lane Control symbol.

It is my interpretation that all vehicle movement must turn left, with no U-Turn option. I base this interpretation using Mandatory Lane Control sign R3-7 with the legend: Left Lane Must Turn Left. I am assuming R3-5 and R3-7 have the same meaning; one being symbolic, one being legend.

A colleague of mine maintains that a U-Turn is simply two lefts, thus allowed unless specifically stated to the contrary.

I thank you for your attention and assistance in this matter and look forward to your response.


Original signed by:

Lamont A. Johnson, Traffic Ops

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