TRB’s Transit Cooperative Research Program (TCRP) Web-Only Document 32: Elements Needed to Create High-Ridership Transit Systems: Interim Guidebook examines types of actions, initiatives, and special projects that offer the potential to improve transit ridership and provides examples of their effective use and impacts. The report is designed to assist transit managers and their staff, policymakers, and key regional stakeholders by describing strategies that have proven successful at producing ridership increases.