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Traffic Signals


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(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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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 08/27/2010

2009 Edition of Signal Design Guidelines

SCDOT's Signal Design Guidelines has been revised and published in a new digital format.

This publication is a comprehensive document that details the Departments standard methodology of handling signal requests as well as the review, design, installation, operation and maintenance of traffic signals. In addition, these guidelines provide guidance for the appropriate fiscal responsibilities for signals in municipalities, at private developments, at schools, etcetera.

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(PDF 106 kb) – Updated 07/01/2015

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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