The present volume in our series, Human Behavior and Environment, is devoted to a specific topic, continuing the pattern established in the last two volumes. The current theme is behavioral science aspects of trans portation. This topic was chosen to exemplify a problem area of practical import to which psychologists, sociologists, and other behavioral and social scientists can make and have been making notable contributions. Our volume includes papers from a variety of psychological perspec tives, including human factors, environmental psychology, and be havior modification, along with other contributions from a sociologist and a transportation engineer interested in behavioral science contribu tions to transportation. Joining us as guest editor for this volume is Peter Everett, an environmental psychologist whose area of specialty is the study of behavioral components of transportation systems. Volume 6 of our series, currently in preparation, will be devoted to behavior and the natural environment. A provisional table of contents for that volume appears on page v. Irwin Altman Joachim F. Wohlwill Peter B. Everett ix Contents Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 1 . . . . . . . . . . . . . . CHAPTER 1 TRANSPORTATION AND THE BEHAVIORAL SCIENCES DAVID T. HARTGEN Introduction 5 Brief Overview of the Behavioral Sciences. . . ..... . .... . . . . .. . . .... . .... . . . . . . ... . . ... . ..... . . 7 Current Transportation Issues: Evolution and Behavioral Applications ........................ 8 Urban Transit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Rural Transit Systems ................................... 12 Transportation for the Mobility-Limited .......... . . . . . .. . . . . . . . . . . . . . . . 15 . . . . . . . . Environmental and Social Impact Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 . . . . . . . . . . . . Energy and Transportation. . . . . . . . . . . . . . . . . . . . . . . 20 . . . . . . . . Summary and Conclusions. . . . . . . . . . . . . . . . . . . . . . . . . 23 . . . . . . . . . . References ................................................. 25 xi Contents xii CHAPTER 2 PSYCHOLOGICAL CONTRIBUTIONS TO TRAVEL DEMAND MODELING IRWIN P. LEVIN JORDAN J. LOUVIERE Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 . . . . . . . . . . . . .