Special Committee on Research and Innovation


AASHTO Liaison
Keith Platte, P.E., Associate Program Director, Project Delivery
kplatte@aashto.org

Untitled Document

AASHTO RAC MEMBER SURVEY RESULTS


Guardrail Standards/Design Survey

10/05/16

The Montana Department of Transportation would like to learn more about your organization’s MASH/ 31" MGS guardrail standards and design.

The following questions were asked as part of this survey:

Has your State adopted 31" MGS?

Is your State currently planning to adopt 31" MGS?

What is the most common concrete bridge barrier shape that your State uses? (Select as many as apply)

--Jersey
--F-Shape
--Constant-Slope
--Vertical
--Other (please describe)

Please explain the connection method(s) your State uses to transition 31" thrie-beam into new and existing concrete bridge barrier.

For what crash test criteria is the thrie-beam to concrete bridge barrier connection intended?

--2016 MASH
--2009 MASH
--NCHRP 350
--Other (please explain)

For what test level is the thrie-beam to concrete bridge barrier connection intended?

--TL-2
--TL-3
--TL-4
--TL-5
--TL-6
--Other (please explain)

Is your State currently exploring or aware of any studies to develop a 31" w-beam guardrail transition to concrete bridge rail?

Does your State currently install intersecting roadway guardrail sections?

For what crash testing criteria is your State's intersecting roadway guardrail section intended?

--2016 MASH
--2009 MASH
--NCHRP 350
--Other (please explain)

For what test level is your State's intersecting roadway guardrail section intended?
--TL-2
--TL-3
--Other (please explain)

Did you make any modifications to the intersecting roadway guardrail section to make it compatible with 31" MGS?

Is your State currently developing an alternative intersecting guardrail section?





Sue Sillick
Research Program Manager
2701 Prospect Avenue
Helena, Montana 59620
United States
Phone: United States
E-Mail Address: ssillick@mt.gov