TRB’s National Cooperative Highway Research Program (NCHRP) CRP-CD-78 provides safety forecasting software and accompanying guidance that is designed to help independently forecast the safety impacts of changes in socio-demographics and safety investments, both engineering and behavioral. CRP-CD-78  is available for download as an ISO image. Instructions for burning a CD-ROM from an ISO image are provided below.  Help on Burning an .ISO CD-ROM Image (Warning: This is a large file and may t...

TRB's National Cooperative Highway Research Program (NCHRP) CD-ROM 49: Archived River Meander Bend Database, a four-CD set, includes 141 meander sites containing 1,503 meander bends on 89 rivers in the United States.  The database was acquired during development of NCHRP Web Document 67: Methodology for Predicting Channel Migration , which documents and presents the results of a study to develop a practical methodology to predict the rate and extent of channel migration in proximity to transportati...

TRB's National Cooperative Highway Research Program (NCHRP) CD-22, Scientific Approaches to Transportation Research, Volumes 1 and 2, is an electronic manual designed to improve the quality of transportation research by providing a comprehensive source of information on the conduct of research. The manual includes state-of-the-art techniques for problem statement development; literature searching; development of the research work plan; execution of the experiment; data collection, management, quality con...

NU DRT Software, User's Manual, and Supplementary Documents Help on burning a .ISO CD Image

Profiles, fictional case studies, and decision-making diagrams associated with technologies to improve consideration of environmental concerns in transportation decisions are included in a new NCHRP CD and a web page.