This document reviews literature on factors influencing the demand for park and ride systems in traffic management. It discusses several studies that have used logit models to analyze park and ride user behavior and choice. Key factors found to influence park and ride demand include travel time savings, costs, traffic congestion levels, income levels, and the quality and availability of park and ride facilities and public transportation options. The document concludes that understanding what drives park and ride usage can help policymakers better plan and develop park and ride services.