Final Report Link: MASH TL-3 Evaluation of Sign Posts with Flashing Beacon Equipment
| TTI Research Supervisor: Nathan D. Schulz, Ph.D. Assistant Research Texas A&M Transportation Institute TAMU 3135 College Station, Texas 77843-3135 (979) 317-2694 [email protected] |
Pooled Fund Technical Representative: Flint Jackson, PR State Traffic Electrical Systems Engineer HQ Traffic Operations Washington State Department of Transportation (360) 705-7392 [email protected] |
State DOTs often encounter situations where flashing equipment is attached to
roadside sign support installations. It was necessary to evaluate the crashworthy effect of
adding the flashing equipment to the top of breakaway sign support systems. A design was
selected for full-scale crash testing based on previous crash testing, a state survey, and
evaluation of wind loading requirements.
The breakaway sign support system with flashing equipment was evaluated according
to the safety-performance evaluation guidelines included in the second edition of the
American Association of State Highway and Transportation Officials (AASHTO) Manual for
Assessing Safety Hardware (MASH) (1).
The breakaway sign support system with flashing equipment did not meet the
performance criteria for MASH TL-3 Support Structures.
1_GP
1_OB
1_RA
1_RT
2_GP
2_OB
2_RA
2_RT
Updated November 14, 2024