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|U.S. Department of Transportation
|Federal Highway Administration
Request for Interpretation 2-545(I)-Use
of Folding Stop Signs for Traffic Signal Power Outages
|April 9, 2004
|Regina S. McElroy ,/s/ Reginia McElroy, Office of Transportation Operations
Missouri Division Administrator (HDA-MO)
Jefferson City, Missouri
This is in response to Mr. Kevin Kelley's February 23 telephone request to Mr. Fred Ranck in the Resource Center for an interpretation regarding the use of folding stop signs for traffic signal power outages. For recordkeeping purposes, this request is assigned the following official ruling number and title: "2-545(1) -Use of Folding Stop Signs for Traffic Signal Power Outages."
Information regarding the design and application of STOP signs may be found in the 2003 edition of the Manual on Uniform Traffic Control Devices (MUTCD) in Sections 2B.04 through 2B.07. The MUTCD is available on-line at: https://mutcd.fhwa.dot.gov. The following three requirements govern the use of folding STOP signs for traffic signal power outages:
The State highway department should develop and adopt a policy for the use of folding STOP signs for traffic signal power outages. The policy should ensure that a STOP sign is not displayed at the same time as any signal indication is displayed other than a flashing red. If the State highway department cannot ensure that the traffic signal will be in red flashing mode upon restoration of power, then folding STOP signs shall not be used.
The State highway department policy should also include as a minimum the following:
If you have questions or wish additional information, please feel free to call Mr. Fred Ranck, Safety Engineer, at 708-283-3545 at FHWA's Resource Center, Olympia Fields, Illinois.
United States Department of Transportation - Federal Highway Administration