Evaluation of MASH TL-3 Transition Design with a Storm Drain Inlet – Transition Development and Crash Test of 2270 Vehicle (Pickup Truck)(615251/ Task Order DY)
TTI Research Supervisor: Akram Abu-Odeh Texas A&M Transportation Institute Texas A&M University System TAMU 3135 College Station, Texas 77843-3135 (979) 317-2682 [email protected]
Pooled Fund Technical Representative: Derwood C. Sheppard, Jr., P.E. Design Standard Engineer FDOT Roadway Design Office Florida Department of Transportation 605 Suwannee Street Tallahassee, FL 32399-0450 (850) 414-4334 [email protected]
ABSTRACT
This research is focused on developing a MASH TL-3 Transition Design with a Storm Drain Inlet. The design was envisioned to accommodate storm drain inlet that cannot be addressed via a transition with a curb in front of it. The proposed design was developed based on a survey of State DOTs application need and to accommodate constructability. The proposed transition design was evaluated through finite element analysis. The most critical inlet placement and impact point was determined and recommended for full-scale crash testing.
The purpose of the test reported herein was to assess the performance of the Transition with Storm Drain Inlet 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), The crash test was preformed in accordance with MASH Test Level 3 (TL-3):
MASH Test 3-21: A 2270P vehicle weighing 5000-lb impacting the Longitudinal Barrier while traveling at 62 mi/h and 25 degrees.
This report provides details on the Transition with Storm Drain Inlet, the crash tests and results, and the performance assessment of the Transition with Storm Drain Inlet for MASH TL-3 Longitudinal Barrier evaluation criteria.
The Transition with Storm Drain Inlet met the performance criteria for MASH TL-3 Longitudinal Barrier for crash test MASH Test 3-21. The installation was tested to MASH Test 3-20 in Test Report No. 619511-01.
