Transportation

TRB's National Cooperative Highway Research Program (NCHRP) Report 516: Pier and Contraction Scour in Cohesive Soils examines methods for predicting the extent of complex pier and contraction scour in cohesive soils. ...

TRB's National Cooperative Highway Research Program (NCHRP) Report 521: Identification of Research Needs Related to Highway Runoff Management summarizes significant stormwater management practices and research efforts, and it identifies the most pressing gaps and needs in the current state of ...

TRB's National Cooperative Highway Research Program (NCHRP) Report 556: Design and Construction Guidelines for Geosynthetic-Reinforced Soil Bridge Abutments with a Flexible Facing, presents the findings of research undertaken to develop a rational design method and construction guidelines for using geosynthetic-reinforced ...

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 357: Use of Geophysics for Transportation Projects examines the state of the practice regarding the use of geophysics for transportation projects. The report focuses on who is using geophysics and why, which ...

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 360: Rock-Socketed Shafts for Highway Structure Foundations explores current practices pertaining to each step of the design process, along with the limitations; identifies emerging and promising technologies; examines the principal challenges in ...

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 ...

The report describes potential applications of geographic information systems (GIS) and spatial analysis by HUD’s Office of Policy Development and Research for understanding housing needs, addressing broader issues of urban poverty and community development, and improving access to information and ...