MASH TL-3 EVALUATION OF MODIFED MERRITT PARKWAY GUIDERAIL WITH 4-INCH CURB (SUPPLEMENTAL) (612831/Task Order DF)

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Final Report Link: MASH TL-3 EVALUATION OF MODIFED MERRITT PARKWAY GUIDERAIL WITH 4INCH CURB

TTI Research Supervisor:

Chiara Silvestri Dobrovolny

Pooled Fund Technical Representative:

David Kilpatrick

Transportation Supervising Engineer

Texas Department of Transportation

2800 Berlin Turnpike, Newington, CT 06131-7546

(806) 594-3288

[email protected]


ABSTRACT

With the adoption of the AASHTO/FHWA Joint Implementation Agreement for MASH in 2016, specific implementation dates were defined to determine crashworthiness of roadside safety systems to be implemented on projects on the NHS using the 2016 edition of MASH. CTDOT was interested in including this guardrail system within its standards as an available roadside safety hardware. However prior to adding this system to the CTDOT standards, it was necessary to have a MASH complaint system. CTDOT proposes to full-scale crash test to evaluate the Merritt Parkway Guiderail system performance in accordance with the guidelines specified in the 2016 edition of MASH.   The Modified Merritt Parkway Guiderail with 4 inch curb met the performance criteria for MASH TL-3 longitudinal barriers, and the Merrit Parkway Guiderail Transition met the performance criteria for MASH TL-3 transitions. 

March 29, 2024