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Sign, Signal, and Luminaire Supports, Utility Poles, Trees, and Similar Roadside Features

This article explores various types of roadside supports such as sign and luminaire supports, utility poles, trees, and other similar features. It discusses crash stub height criteria, different types of sign supports, breakaway signs, concerns on slopes, and types of breakaway luminaire supports.

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Sign, Signal, and Luminaire Supports, Utility Poles, Trees, and Similar Roadside Features

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  1. Sign, Signal, and Luminaire Supports, Utility Poles, Trees, and Similar Roadside Features RDG Chapter 4

  2. Roadside Appurtenances • Sign and Luminaire Supports • Traffic Signal Supports • Mailbox Supports • Utility Poles • Trees

  3. crash

  4. Stub Height Criteria Stub 4” max. 5’ min.

  5. Sign Supports

  6. Types of Sign Supports • Overhead Signs • Large Roadside Signs • Small Roadside Signs

  7. Portland/Oregon street sign

  8. Tysons/Lessburg street sign

  9. Wind Vehicle Impact Weak in Shear Ground-Mounted Breakaway Signs Strong in Moment

  10. Car position 1

  11. Car position 2

  12. Car position 3

  13. Car diagram 7’

  14. Uni-directional slip base

  15. Frangible coupling

  16. Old Mill Bottom Road Sign

  17. Lower signs

  18. Small Sign Supports • Base Bending • Slip Base • Fracture

  19. 1 4 Breakaway Hinge Point on Slopes Safer Roads Roadway 7’ 20’

  20. 2 concerns

  21. Luminaire Supports

  22. Types of Breakaway Luminaire Supports • Transformer Bases • Slip Bases • Frangible Couplings • Fiberglass Poles

  23. 4” Stub Requirement

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