Scientific Approaches to Transportation Research CD-ROM

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 control, and reporting of results; and evaluation of the effectiveness of the research, as well as the requirements for the systematic, professional, and ethical conduct of transportation research.

In October 2012, TRB released NCHRP Report 727: Effective Experiment Design and Data Analysis in Transportation Research as a companion to NCHRP CD-22.