SECTION 653 - TRAFFIC AND STREET NAME SIGNS
653.01 Description. This work shall consist of furnishing and installing reflectorized
regulatory and warning traffic signs and street name signs as shown on the plans and set forth herein. This specification addresses the minimum requ irements for supplying traffic and street name signs for use with span wire and mast arm mounted traffic signal systems.
653.02 Materials. All materials for traffic and street name signs shall be new and meet
the requirements of Section 721 of the Standard Specifications.
653.02.1 Reflective Sheeting. Reflective sheeting for traffic and street name signs shall
be Type III or Type VII retroreflective sheeting. The type and color of reflective sheeting shall be indicated on the plans or set forth herein.
653.02.2 Sign Blanks. Sign blanks shall be flat aluminum sign blanks constructed of
5052-H38 aluminum alloy. Blanks shall be 0.100 inches thick, degreased, deburred, etched and alodine. Sizes shall be as indicated in the plans for the specific warning, regulatory or street name sign called for and to accommodate the various legends.
653.02.3 Sign Faces. All sign faces shall consist of sheeting material and their legends
applied to aluminum blanks specified herein using a heat vacuum method and/or by silk screening the legends only onto the backings and material. The sheeting shall be applied with legends to one side of each warning, regulatory or street name sign as shown on the plans. The color of all faces shall consist of a refl ectorized yellow, red, green or silver-white background with reflectorized black, red or white legend. The legend shall consist of letters and symbols conforming to the design of warning or regulatory signs as shown in the MUTCD and for street name signs as shown on the plans. All letter sizes spacing shall be in acco rdance with FHWA and the manufacturer's recommendations to insure proper legibility with the increased reflectance.
653.03 Construction Requirements. All signs shall be installed in accordance with the
plans and the Manual on Uniform Traffic Control Devices (MUTCD). Signs are to be tilted in order to minimize or eliminate specular reflection.
653.03.1 Warning and Regulatory Signs. Warning and regulatory signs shall be
installed at locations as noted on the plans with the appropriate mounting bracket and banding material.
653.03.2 Street Name Signs. Street name signs shall be installed at locations as noted on
the plans. If installed on mast arms, they shall be attached with at least two mounting brackets and appropriate banding materials.
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