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Development of MASH Full-Scale Test Matrices for Additional Roadside Safety Devices

项目名称：	Development of MASH Full-Scale Test Matrices for Additional Roadside Safety Devices
摘要：	The Manual for Assessing Safety Hardware (MASH) has developed test matrices for various hardware based on an approach of “worst practical conditions.” This approach is based on selecting the worst or most critical conditions when defining a test matrix. Tests within a matrix need to evaluate different vehicle types, impact conditions, failure types and vary the evaluation criteria. A matrix also needs to allow multiple design alternatives for a roadside feature. Finally, test matrices must also be practical such that roadside features evaluated through the test matrix are cost effective and provide increased safety benefit without being a financial burden to end users. While MASH has matrices for most roadside features, several devices lack a matrix, or the matrix needs clarity. There are no formal procedures to develop or evaluate a new matrix, nor are there procedures to evaluate or update an existing matrix. This lack of procedure makes it difficult for AASHTO’s Technical Committee on Roadside Safety (TCRS) to balance safety, cost, and practicality. The objective of this research project is to develop potential methodologies and procedures to evaluate the (a) newly developed matrices; and (b) modification of test matrices. The developed methodologies and procedures would be applied to selected devices to develop or modify test matrices for them. Methodologies and procedures to evaluate new matrices and modify existing one could improve the effectiveness of roadside features, increase efficiency in developing and maintaining matrices, and provide a consistent and defendable roadside hardware evaluation process.
状态：	Proposed
资金：	500000
资助组织：	National Cooperative Highway Research Program；American Association of State Highway and Transportation Officials (AASHTO)；Federal Highway Administration
项目负责人：	Jared, David M
开始时间：	20220607
主题领域：	Highways；Safety and Human Factors