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Transportation : Construction
NCHRP Report 639: Adhesive Anchors in Concrete Under Sustained Loading Conditions

TRB's National Cooperative Highway Research Program (NCHRP) Report 638: Guidelines for Guardrail Implementation explores guidance on selecting the appropriate barrier performance level for the installation of longitudinal barriers.



The following appendices to NCHRP Report 638 are ...

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TCRP Report 131: A Guidebook for the Evaluation of Project Delivery Methods

TRB's Transit Cooperative Research Program (TCRP) Report 131: A Guidebook for the Evaluation of Project Delivery Methods examines various project delivery methods for major transit capital projects. The report also explores the impacts, advantages, and disadvantages of including operations and ...

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NCHRP Synthesis 385: Information Technology for Efficient Project Delivery

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 385: Information Technology for Efficient Project Delivery explores "best practices" for the seamless sharing of information throughout all phases of the project delivery process. ...

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NCHRP Report 611: Seismic Analysis and Design of Retaining Walls, Buried Structures, Slopes, and Embankments

TRB's National Cooperative Highway Research Program (NCHRP) Report 611: Seismic Analysis and Design of Retaining Walls, Buried Structures, Slopes, and Embankments explores analytical and design methods for the seismic design of retaining walls, buried structures, slopes, and embankments. The Final ...

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NCHRP Report 621: Acceptance Tests for Surface Characteristics of Steel Strands in Prestressed Concrete

TRB's National Cooperative Highway Research Program (NCHRP) Report 621: Acceptance Tests for Surface Characteristics of Steel Strands in Prestressed Concrete explores tests to identify and measure residues on the surface of steel pre-stressing strands and to establish thresholds for residue ...

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NCHRP Report 638: Guidelines for Guardrail Implementation

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NCHRP Report 629: Ruggedness Testing of the Dynamic Modulus and Flow Number Tests with the Simple Performance Tester

TRB's National Cooperative Highway Research Program (NCHRP) Report 629: Ruggedness Testing of the Dynamic Modulus and Flow Number Tests with the Simple Performance Tester examines ruggedness testing that was conducted with a simple performance tester for the dynamic modulus and ...

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NCHRP Report 627: Traffic Safety Evaluation of Nighttime and Daytime Work Zones

TRB's National Cooperative Highway Research Program (NCHRP) Report 627: Traffic Safety Evaluation of Nighttime and Daytime Work Zones explores the crash rates for nighttime and daytime work zones and examines management practices that promote safety and mobility in work zones. ...

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NCHRP Report 624: Selection and Application of Warning Lights on Roadway Operations Equipment

TRB's National Cooperative Highway Research Program (NCHRP) Report 624: Selection and Application of Warning Lights on Roadway Operations Equipment explores recommended guidelines for the selection and application of warning lights on roadway operations equipment.



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NCHRP Synthesis 378: State Highway Cost Allocation Studies

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 378: State Highway Cost Allocation Studies examines the history and evolution of highway cost allocation study practice and explores the current state of the practice. ...

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