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  1. Standard Highway Sign Designs for Texas (SHSD) - Texas …

  2. Sign Guidelines and Applications Manual - Texas Department of ...

  3. Chapter 4: Freeway Guide Sign Design - Texas Department of Transportation

  4. Chapter 3: Sign Materials and Supports - Texas Department of Transportation

  5. Texas Manual on Uniform Traffic Control Devices (TMUTCD)

  6. Traffic design standards for signs, signals, and markings