Type-60-Median-Barrier-MASH-2016

Background

For two decades, Caltrans has used the Type 60 single slope concrete median barrier with sloping face of 9.1° from vertical which meets crash test requirements for Test Level 3 (TL-3, 65 mph or less) of the National Cooperative Highway Research Committee Report 350 guidelines (Report 350). The Federal Highway Administration (FHWA) has determined that the Texas Transportation Institute (TTI) has successfully crash tested a 10.8° single slope concrete barrier which meets Manual for Assessing Safety Hardware 2009 (MASH) TL-3 for a pickup (test 3-11). While this barrier is considered to perform similarly to the Type 60, no other single slope concrete barrier has been tested to MASH TL-3 with a small car (test 3-10). Caltrans recognized the high priority need for compliance crash testing of the Type 60 with a small car to MASH Test Level 3 criteria.

A 150-foot test section of Type 60 median barrier was used for the crash test. The barrier was constructed in 2006 at the Caltrans Dynamic Test Facility for a previous project. The barrier design conformed to Caltrans 1999 Standard Plans A76A and A76B and is 36” high.

 

Type 60 Completed Barrier End
Completed Barrier End
Type 60 median barrier completed front view
Completed Barrier
Type 60 Median Barrier vehicle impact
Vehicle Impact
Type 60 Median Barrier vehicle after impact
Vehicle After Test

 

Impact Conditions

Test 140MASH3C16-04 (MASH 2009 Test Level 3)
Vehicle: 2007 Kia Rio
Impact Speed: 61.2 mph (98.5 kph)
Impact Angle: 25.7°

High Speed Crash Test Video

These videos will be made available soon.

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