Highway Safety: More Robust DOT Oversight of Guardrails and Other Roadside Hardware Could Further Enhance Safety, Report to Congressional Requesters   [open pdf - 1MB]

From the Document: "The Federal Highway Administration (FHWA) oversees and promotes states' installation of crash-tested roadside safety hardware through guidance and policy directives to states and by issuing letters to roadside safety hardware developers that provide states with information on roadside safety hardware that has been crash tested. States that responded to our survey generally stated they require crash testing. However, some inconsistencies across state practices exist, and states' movement to require installation of devices successfully tested to updated, improved crash test standards--in the Manual for Assessing Safety Hardware (MASH)--has been slow. FHWA, in partnership with the American Association of State Highway and Transportation Officials (AASHTO), recently established transition dates to the MASH standards for states, but some challenges exist in developing and approving a sufficient quantity of roadside safety hardware tested to MASH standards. FHWA currently does not have a monitoring plan to report on progress to meeting the established dates; monitoring and reporting would allow FHWA to keep decision makers aware of progress and position FHWA to take corrective actions as needed."

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Government Accountability Office: http://www.gao.gov/
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