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  • All fields: Traffic engineering--Oklahoma.
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    • Quality standards for temporary traffic control devices

    • Traffic signs and signals--Oklahoma.; Traffic engineering--Oklahoma.; Roads--Oklahoma--Design and construction--Safety measures.
    • Temporary traffic control devices (TCD) are a necessary part of highway work zones. These devices are used to warn motorists of hazards, advise them of the proper path through the work area, delineate areas where they may not operate, and to...

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