TRB's National Cooperative Highway Research Program (NCHRP)  Research Report 903: Geotechnical Asset Management for Transportation Agencies, Volume 2: Implementation Manual presents a manual that can be used to implement Geotechnical Asset Management (GAM) planning. Volume 1 , Research Overview, details the scope, process, and findings of the study. The management of bridge and pavement as...

TRB’s National Cooperative Highway Research Program (NCHRP) has release a pre-publication version NCHRP Research Report 920: Management and Use of Data for Transportation Performance Management: Guide for Practitioners that provides practical guidance to transportation agencies to help improve their use of data for performance management. Recent federal legislation has established requirements ...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 918: Approaches for Determining and Complying with TMDL Requirements Related to Roadway Stormwater Runoff has been released in pre-publication format. The report includes strategies to help improve total maximum daily load (TMDL) evaluations and assist in the decision-making process for the development of and compliance...

TRB’s National Cooperative Highway Research Program (NCHRP) has released the pre-publication version of NCHRP Research Report 915: Relationship Between Erodibility and Properties of Soils, which provides reliable and simple equations quantifying the erodibility of soils based on soil properties. The report a detailed analysis of the issue. In addition, the project that developed the report also...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 912: Guidelines for Detection and Remediation of Soluble Salt Contamination Prior to Coating Steel Highway Structures consolidates practical guidance on the detection and remediation of soluble salt contamination prior to coating steel highway structures. Soluble salts are those that dissociate in solution into anionic ...

TRB’s National Cooperative Highway Research Program (NCHRP) has released a pre-publication version of Research Report 911: Guidelines for Slope Traversability, which includes guidelines for determining the traversability of roadside slopes considering the characteristics of the current passenger vehicle fleet. As part of development of this report, researchers performed full-scale traversabilit...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 909: Guide to Truck Activity Data for Emissions Modeling explores methods, procedures, and data sets needed to capture commercial vehicle activity, vehicle characteristics, and operations to assist in estimating and forecasting criteria pollutants, air toxics, and greenhouse gas emissions from goods and services movemen...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 908: Acceptance Criteria of Complete Joint Penetration Steel Bridge Welds Evaluated Using Enhanced Ultrasonic Methods presents guidelines for evaluating complete joint penetration (CJP) welds in steel bridges and proposes modifications to the American Association of State Highway and Transportation Officials (AASHTO)/Am...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 905: Measuring the Effectiveness of Public Involvement in Transportation Planning and Project Development provides a field-validated and practitioner-ready toolkit to measure the effectiveness of a transportation agency’s public involvement activities. The toolkit is designed to collect feedback from the public on sever...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 903: Geotechnical Asset Management for Transportation Agencies provides an introduction and scalable guidance for state transportation agencies on how to implement risk-based geotechnical asset management into current asset management plans. Volume 1, Research Overview, details the scope, process, and findings of the st...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 902: Benchmarking and Comparative Measurement for Effective Performance Management by Transportation Agencies presents guidance and examples for selection of peer groups to ensure that benchmarking is effectively applied to enhance transportation system performance. Benchmarking—comparison of oneself with peers—has been...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 901: Prioritization Procedure for Proposed Road–Rail Grade Separation Projects Along Specific Rail Corridors is designed to assist state and local planners in making prioritization and investment decisions for road–rail at-grade crossing separations. The report provides a comprehensive means of comparing similar project...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 900: Guide for the Analysis of Multimodal Corridor Access Management describes operational and safety relationships between access management techniques and the automobile, pedestrian, bicycle, public transit, and truck modes. This report may help assist in the selection of alternative access management techniques ...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 898: A Guide to Developing Financial Plans and Performance Measures for Transportation Asset Management presents guidance for state departments of transportation (DOTs) and other agencies conducting financial analyses and developing financial plans to support efficient and effective management of the agency’s transporta...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 897: Tools to Facilitate Implementation of Effective Metropolitan Freight Transportation Strategies provides transportation practitioners and decision makers with guidance for implementing effective metropolitan freight transportation strategies. The report outlines thirty strategies that are tailored to the specific ci...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 896: Updating Regional Transportation Planning and Modeling Tools to Address Impacts of Connected and Automated Vehicles, Volume 2: Guidance provides detailed information and guidelines for state departments of transportation (DOTs) and metropolitan planning organizations (MPOs) to help update their modeling and forecas...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 896: Updating Regional Transportation Planning and Modeling Tools to Address Impacts of Connected and Automated Vehicles, Volume 1: Executive Summary summarizes guidelines to help agencies update their modeling and forecasting tools to address expected impacts of connected and automated vehicles (CAVs) on transportation...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 895: Simplified Full-Depth Precast Concrete Deck Panel Systems describes new connections between full-depth precast concrete deck panels and beams. These connections are simplified with regard to constructability, inspection during construction, reducing the impact of construction on traffic, and future deck replacement...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 894: Performance of Longitudinal Barriers on Curved, Superelevated Roadway Sections  presents guidance on designing, selecting, and installing longitudinal traffic barriers for curved, superelevated roadways for possible incorporation in the American Association of State Highway and Transportation Officials (AASHTO...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 893: Systemic Pedestrian Safety Analysis provides a safety analysis method that can be used to proactively identify sites for potential safety improvements based on specific risk factors for pedestrians. A systemic approach, as opposed to a “hot-spot” approach, enables transportation agencies to identify, prioritize, an...