903.1 Highway Signing General Information

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Support. Sections 226.010 and 227.220 of the Revised Statutes of the State of Missouri authorize MoDOT to prescribe uniform traffic control devices on the state highways. Pursuant to the provisions of the above statutes, the Missouri Highways and Transportation Commission at the July 10, 2001 commission meeting approved and adopted the Manual on Uniform Traffic Control Devices (MUTCD).

This article provides additional standards for design and application of traffic control devices in Missouri. This article is not a substitute for engineering judgment. It is the intent that the provisions of this article be standards for traffic control devices installed, but not a legal requirement for their installation. The need for a traffic control device will be based on the engineer's judgment and of their knowledge of its need.

The standards, guidance and options this article relates directly to the signing installed within the right of way of highways maintained by MoDOT.

Because MoDOT does not use many of the "common" size signs in the Standard Highway Signs and Markings book, we have produced our own sign detail policy, Sign Management System Sign Catalog. MoDOT's SMS Sign Catalog meets and/or exceeds the minimums of the Standard Highway Signs and Markings book. MoDOT's Highway Safety and Traffic Division is responsible for sign design on the state highway system. Any unique sign or sign that isn't currently in the SMS Sign Catalog will be designed using the principles and minimums in the Standard Highway Signs and Markings book and the current MUTCD.

The districts are responsible for proper review of signing plans for accuracy, to ensure that standards are met and that deviations from the standards are justified.

Any traffic control device design or application provision contained in this article shall be considered to be in the public domain. Traffic control devices contained in this article shall not be protected by a patent, trademark, or copyright except for the Interstate Shield and any other items owned by FHWA.

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