NCHRP 20-45
Scientific Approaches
to Transportation Research

Online documentation

Scientific Approaches to Transportation Research
Volumes 1 and 2

Prepared for:
National Cooperative Highway Research Program
Transportation Research Board of the National Academies
Washington, DC 20001

Prepared by:
Simon Washington, Georgia Tech
John Leonard, Georgia Tech
David G. Manning, D. G. Manning and Associates
Craig Roberts, University of Northern Arizona
Billy Williams, Georgia Tech
Ataur R. Bacchus, D. G. Manning and Associates
Adarsh Devanhalli, Georgia Tech
Jennifer Ogle, Georgia Tech
Daniel Melcher, Georgia Tech

DISCLAIMER

 The opinions and conclusions expressed or implied in the material are those of the research agency. They are not necessarily those of the TRB, the National Academies, AASHTO, or the U.S. Government.

   This material has not been edited by TRB.