Recent Roadway Geometric Design Research for Improved Safety and Operations

Recent Roadway Geometric Design Research for Improved Safety and Operations - Printable Version

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Recent Roadway Geometric Design Research for Improved Safety and Operations - mahyarov - 10-25-2012

Use of the design-build project delivery method by state agencies for transportation projects is increasing each year. This study reviews how states use geotechnical information in solicitation documents and contracts for design-build highway projects. The report examines current practices regarding the allocation of geotechnical risk and the level of geotechnical information provided with bid documents, the scope of geotechnical information required after contract award, geotechnical-related performance testing during construction, and contract provisions related to geotechnical design and construction. Information used in this study was gathered through a literature review, a survey of state departments of transportation (DOTs), analysis of design-build policy guidelines and solicitation documents from state DOTs, and interviews with design-build contractors. The report also provides case studies on legal and engineering geotechnical issues.

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