Traffic Signals
(922 kb)
Traffic Signal Specifications
These are the Special Provisions and Traffic Signal Specifications for Traffic Signal Installation. The special provisions/specifications describe in detail the SCDOT installation, rebuild, or revision procedures and requirements that will need to be followed for all traffic signal installation projects.
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(926 Kb)
Manual on Uniform Traffic Control Devices (MUTCD)
Effective May 1, 2011, SCDOT adopted the 2009 edition of the Manual on Uniform Traffic Control Devices (MUTCD) as its official traffic control manual. This manual is the guideline for SCDOT's policies and procedures on installing and maintaining signs, markings, and signals in South Carolina. The MUTCD may be viewed online at the FHWA Website.
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(PDF 6.75 Mb) – Updated 12/10/2020
Traffic Signal Design Guidelines
SCDOT's Traffic Signal Design Guidelines has been revised and the revisions are effective as of January 1, 2021. The purpose of this document is to establish guidance, procedures and specifications that promote uniformity in the design of traffic signals. It is intended to clarify expectations and expedite the production and review of signal plans. These design guidelines include signal plan drafting guidance and specialized signal designs to ensure that plans properly convey the extent and character of the work to be performed, as well as the operation of the signal upon completion of the project.
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(PDF 290 kb) – Updated 06/21/2018
Qualified Products List for Traffic Signal Equipment and Materials
The Traffic Signal Equipment and Materials QPL is now managed through the Office of Materials & Research. Please see their website for the latest policies and lists.
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