GENERAL DETERRENCE IS THE EFFECT OF A THREATENED SANCTION ON BEHAVIOR IN THE GENERAL POPULATION TO WHICH THE LAW IS ADDRESSED. SPECIFIC DETERRENCE, HOWEVER, DETERS NOT FROM THREAT ALONE BUT FROM SANCTIONS INCURRED. SINCE MOST DWI DRIVERS WILL NOT BE CAUGHT, GENERAL DETERRENCE AIDED BY PUBLICITY IS THE MOST INFLUENTIAL DETERRENCE. THUS, A SYSTEM MODEL OF DWI GENERAL DETERRENCE WAS DEVELOPED THROUGH THE APPLICATION OF SYSTEM ANALYSIS METHODS. FACTORS LIKELY TO INFLUENCE THE DWI DECISION WERE RELATED TO EACH OTHER AND TO THE DWI DECISION PROCESS. A RESULTING MODEL DESCRIBED HEREIN, WAS THE BASIS FOR DESIGNING A COMPUTER SIMULATION TO ASSESS THE EFFECTIVENESS OF DIFFERENT COUNTERMEASURE PROGRAMS. THE SIMULATION INCORPORATES THE THREE MAIN NETWORKS OF THE DWI GENERAL DETERRENCE MODEL--THE DRIVER-TRIP NETWORK, ADJUDICATION NETWORK, AND THE INFORMATION FEEDBACK NETWORK. DIFFERENT UNITS FLOWING WITHIN THESE NETWORKS ARE, RESPECTIVELY, DRIVER-TRIPS, ARRESTED DRIVERS, AND DRIVERS' PERCEIVED RISK LEVELS. THE THREE NETWORK FLOWS ARE INTEGRATED; A DETAILED DESCRIPTION OF THE SIMULATION PROGRAM IS INCLUDED. IN ADDITION, EXPERIMENTS WERE CONDUCTED USING THE COMPUTER-BASED SIMULATION PROGRAM TO ASSESS THE SENSITIVITY OF SYSTEM PARAMETERS AND EVALUATE DIFFERENT COUNTERMEASURE APPROACHES. CONCLUSIONS ABOUT DWI GENERAL DETERRENCE RESULTING FROM THE SYSTEM ANALYSIS EMPHASIZE THE IMPORTANCE OF DRIVER OPINION ABOUT THE RISK AND OTHER MATTERS. TABLES, CHARTS, REFERENCES, AND AN APPENDIX ARE INCLUDED.