INCORPORATING ENVIRONMENTAL IMPACTS IN THE TRANSPORTATION SYSTEM EVALUATION PROCESS

AN INCREASED SOCIAL AWARENESS AND CONCERN FOR THE ENVIRONMENT HAVE ADDED TO THE COMPLEXITY OF TRANSPORTATION DECISION-MAKING. THIS PAPER ATTEMPTS TO SYNTHEXIZE AND ASSESS CURRENT SYSTEM EVALUATION TECHNIQUES THAT ARE POTENTIALLY SUITABLE FOR TREATING SOCIOECONOMIC, ENVIRONMENTAL, AND POLITICAL IMPACTS FROM THE LOCATION AND DESIGN OF TRANSPORTATION FACILITIES. THE RELATIVE MERITS OF SEVERAL NUMERICAL TECHNIQUES ARE PRESENTED THROUGH EXAMPLES. THE ARRANGEMENT AND COMPARISONS DEVELOPED ARE ULTIMATELY GENERALIZED INTO A COST-EFFECTIVENESS FRAMEWORK, AND DIALOGUE WITH THE OPERATIONAL PLANNER IS FURTHERED THROUGH A GENERAL DISCUSSION OF THE DECISION-MAKING AND MODEL CHOICE PROBLEM AND AN OVERVIEW OF CURRENT THEORETICAL RESEARCH EFFORTS IN TRANSPORTATION SYSTEMS EVALUATION.