Transportation agencies currently have to meet federal regulations that require the incorporation of risk and resilience into their activities, including MAP-21, FHWA 5520, and the Infrastructure Investment and Jobs Act. However, guidelines for analytical risk assessment methods to support risk-based processes is lagging. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1014: Developing a Highway Framework to Conduct an All-Hazards Risk and Resilience Analysis presents a rese...

With increased traffic, multilane highways, and complex highway interchanges, highway signs play an ever more important role in the safe operation of the nation’s transportation network. A detailed understanding of stresses during the service life of sign support structures is crucial for their safe and economic design. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1012: Wind Drag Coefficients for Highway Signs and Support Structures develops comprehensive methods for esti...

Midblock pedestrian signals (MPSs) provide safety benefits and support “complete streets,” a transportation policy and design approach that calls for roadways to be designed and operated with all users in mind: bicyclists, public transportation users, drivers, and pedestrians of all ages and abilities. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1030: Safety at Midblock Pedestrian Signals presents a state-of-the-practice guide to midblock pedestrian crossing treatments, ...

Transportation construction inspectors (CIs) have specific expertise in areas such as earthwork, structures, and pavement. CIs apply this expertise to ensure that construction work meets or exceeds the construction contract requirements. State departments of transportation are facing attrition in the CI workforce and losses in institutional knowledge among CIs as a result of retirements, agency downsizing, and fewer individuals pursuing construction inspection. The number of candidate CIs is projected to...

The Federal-Aid Highway Program (FAHP) represents one of the largest grant programs in the federal domestic budget and is a combination of individual categorical and discretionary grant programs. The TRB National Cooperative Highway Research Program's  NCHRP Research Report 1023: Federal Funding Flexibility: Use of Federal-Aid Highway Fund Transfers by State DOTs investigates recent experience with statutory features that allow recipients of formula grants to shift the authority to use federal funds...

State departments of transportation (DOTs) have various practices for ensuring information security, cybersecurity, and physical security, and for controlling permissions for interactive tools, which can make collaboration, information access, and knowledge sharing difficult. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1034: Guidelines on Collaboration and Information Security for State DOTs presents guidelines for facilitating secure collaboration and information sharin...

The AASHTO Manual for Assessing Safety Hardware (MASH) is the latest in a series of documents that provide guidelines on testing and evaluating roadside safety features. The 2016 document represents a comprehensive update to crash-test and evaluation procedures to reflect changes in the vehicle fleet, operating conditions, and roadside safety knowledge and technology. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1024: Evaluation of Bridge Rail Systems to Confirm AASHTO MA...

Connected vehicles (CVs), travelers using connected mobile devices, intelligent transportation system (ITS) devices, and traffic management systems sharing and using SAE J2735 basic safety messages (BSMs) and other CV messages have the potential to transform transportation systems management, traveler safety and mobility, and system productivity. The TRB National Cooperative Highway Research Program's NCHRP Research Report 997: Algorithms to Convert Basic Safety Messages into Traffic Measures is designed...

Accurate early construction cost estimates of projects are important in order for state departments of transportation (DOTs) to effectively fund and manage the overall construction program. When cost estimates at the scoping phase of a project closely match construction costs, available funding is properly allocated within the program. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1025: Contingency Factors to Account for Risk in Early Construction Cost Estimates for Transp...

At many transportation agencies, context classification plays a significant role in the planning and design of roadway facilities. The purpose of context classification is to characterize roadways based on land-use data and define how users expect to move in and around an area. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1022: Context Classification Application: A Guide presents a guide to assist state, regional, and local planners in identifying the appropriate context ...