Over 102,000 work zone crashes occurred in 2020 in the United States, which equates to a work zone crash every 5.2 minutes. This study aims to provide a better understanding of available resources to best address guidance for implementation of safety measures in work zones. NCHRP Web-Only Document 361: Determination of Work Zone Encroachments , from TRB's National Cooperative Highway Research Prog...

TRB's National Cooperative Rail Research Program (NCRRP) Web Only Document 4: Inventory of State and Federal Passenger and Freight Rail Programs explores rail funding trends and objectives, a program taxonomy, an inventory of federal and state programs, and case studies to highlight rail funding innovation in practice. The Matrix of Rail Programs includes information about 379 state and federal, p...

TRB’s National Cooperative Rail Research Program (NCRRP) Web-Only Document 3: Documentation of Case Studies for NCRRP Project 07-02 accompanies TRB’s National Cooperative Rail Research Program (NCRRP) Report 5 : Developing Multi-State Institutions to Implement Intercity Passenger Rail Programs and provides detailed case studies of intercity passenger rail initiatives and non-transportation, multi-...

TRB's NCRRP Web-Only Document 2: Bibliography and Technical Appendices to Intercity Passenger Rail in the Context of Dynamic Travel Markets documents the resources used to develop  NCRRP Report 4 : Intercity Passenger Rail in the Context of Dynamic Travel Markets. This report explains the analytical framework and models developed to improve understanding of how current or potential inter...

TRB’s National Cooperative Rail Research Program (NCRRP) Web-Only Document 1: Technical Document and User Guide for the Multi-Modal Passenger Simulation Model for Comparing Passenger Rail Energy Consumption with Competing Modes describes the technical details of an analytical framework used to create NCRRP Report 3 : Comparison of Passenger Rail Energy Consumption with Competing Modes. The Web-Onl...