TRB's National Cooperative Highway Research Program (NCHRP) Web-Only Document 258: Manual on Subsurface Investigations provides an update to the American Association of State Highway Transportation Officials (AASHTO) 1988 manual of the same name. This report reflects the changes in the approaches and methods used for geotechnical site characterization that the geotechnical community has develop...

The Future of Transport in the United Kingdom has released a report that summarizes the lessons learned from the planning, design, and execution of various geotechnical repair techniques. The goal of this report is to ensure that future trials of such techniques produce documented evidence of their successes. This report is the final in a series that analyzes various techniques for geotechnical...

TRB has released Critical Issues in Transportation 2019 . In this report, which is updated periodically by the TRB Executive Committee, a series of challenging questions are posed to explore issues and opportunities that may arise 10 to 20 years into the future. These questions, 63 in all, have been organized into 12 topic areas and provide a way to frame future areas of research, policy analys...

TRB's National Cooperative Highway Research Program (NCHRP) has released a prepublication, non-edited version of Research Report 903: Geotechnical Asset Management for Transportation Agencies, Volume 2: Implementation Manual (the "GAM Implementation Manual"). Volume 2 provides guidance for maintaining geotechnical assets including walls, slopes, embankments, and subgrades. This report includes ...

TRB's National Cooperative Highway Research Program (NCHRP) has released a prepublication, non-edited version of Research Report 903: Geotechnical Asset Management for Transportation Agencies, Volume 1: Research Overview and Volume 2: Implementation Manual. Volume 1 provides the methodology behind delivering a manual for implementing geotechnical asset management (GAM) practices within transpor...

The Institute for Transportation at Iowa State University has released a report that identifies the most practical method for performance of levee slopes under various flooding conditions. The goal of this report is to improve the slope stability of earthen levees by strengthening the soil through biocementation. This report hopes to mitigate flooding events that may cause major issues in trans...

The Colorado Department of Transportation has released a report that evaluates a hybrid A-frame micropiles-geosynthetic reinforced soil wall design. Specifically, this report focuses on supporting mountainous roadways with impact road barriers. This report also identifies engineering options to deal with the foundation stability problems in road widening and construction projects.

The U.S. Congressional Research Service has released a report that summarizes the newest version of the Geospatial Data Act (GDA). The GDA seeks to organize and manage geospatial data among federal agencies, local and state authorities, the private sector, and academia. The GDA has the potential to illuminate how each responsible agency budgets for its geospatial activities, which may allow Con...

The Future of Transport (TRL) has released a report that determines the feasibility of using vegetation as an aid to slope stability. It focuses on live willow poles and their environmental benefits in preventing shallow slope failures. This report is one in a series that analyzes various techniques for geotechnical repairs.

The Future of Transport (TRL) has released a report that assesses the effectiveness of electrokinetic geosynthetics (EKG) to increase the stability of highway earthworks. It evaluates likely electrical power consumption, water discharge, and soil material parameter improvements from EKG techniques. This report is one in a series that analyzes various techniques for geotechnical repairs.