The Interstate Highway System connects and integrates the transcontinental United States and has been pivotal for more than 50 years in shaping and supporting the country’s demographic, spatial, economic, and social development.
This system’s future is threatened by a persistent and growing backlog of physical and operational deficiencies and by a number of other challenges. Our reports explore solutions to improve highway systems and best practices for maintenance. All are free to download.
Renewing the National Commitment to the Interstate Highway System: A Foundation for the Future
TRB Special Report 329: Renewing the National Commitment to the Interstate Highway System: A Foundation for the Future explores pending and future federal investment and policy decisions concerning the federal Interstate Highway System. Congress …
Consequences of Delayed Maintenance of Highway Assets
TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 859: Consequences of Delayed Maintenance of Highway Assets presents a process for quantifying the consequences of delayed maintenance of highway assets that considers the …
Life-Cycle Cost Analysis for Management of Highway Assets
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 494: Life-Cycle Cost Analysis for Management of Highway Assets documents the state of the practice of life-cycle cost analysis (LCCA) and risk-based analysis into state highway …
Effective Project Scoping Practices to Improve On-Time and On-Budget Delivery of Highway Projects
TRB’s National Cooperative Highway Research Program (NCHRP) Report 821: Effective Project Scoping Practices to Improve On-Time and On-Budget Delivery of Highway Projects demonstrates how a state department of transportation (state DOT) can …
Practices for Establishing Contract Completion Dates for Highway Projects
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 502: Practices for Establishing Contract Completion Dates for Highway Projects documents current methodologies and procedures used by state transportation agencies to estimate …
Using the Economic Value Created by Transportation to Fund Transportation
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 459: Using the Economic Value Created by Transportation to Fund Transportation presents information on financing mechanisms used by transportation agencies to capture a …