TTI Research Supervisor:
Chiara Silvestri Dobrovolny
Pooled Fund Technical Representative:
Derwood C. Sheppard, Jr., P.E.State Roadway Design Engineer
Florida Depart. of Transportation
Roadway Design Office
605 Suwannee Street, MS-32
Tallahassee, FL 32399-0450
(850) 414-4334 [email protected]
ABSTRACT
The purpose of this research was to test and evaluation of a 42-inch tall combination traffic-pedestrian-bicycle bridge rail system for use at MASH TL-3 conditions. Design of the new barrier considered utilization of a 36-inch single slope concrete barrier with a 6 inch bullet profile aluminum rail mounted on top.
A full-scale crash test was performed according to MASH Test 3-11 impact conditions, which involves a 5000-lb pickup truck impacting the bridge rail at a nominal impact speed of 62 mi/h and at a nominal impact angle of 25 degrees. This test evaluates the bridge rail’s ability to successfully contain and redirect the pickup truck and occupant risk.
This report provides details of the 42 inch tall combination traffic-pedestrian-bicycle rail system, detailed documentation of the crash test and results, and an assessment of the performance of the 42-inch tall combination traffic-pedestrian-bicycle bridge rail system for MASH Te4st 3-11 evaluation criteria.
The 42-inch tall combination traffic-pedestrian-bicycle bridge rail system passed the performance criteria to MASH Test 3-11.
