TRB’s Transit Cooperative Research Program (TCRP) Web-Only Document 39, Appendixes to TCRP Report 118: Bus Rapid Transit Practitioner’s Guide includes the appendixes to TCRP Report 118. The appendixes contain summaries of research that analyzed the ability of express bus and bus rapid transit services to attract riders relative to the ability of rail transit to attract riders, describes key ridership studies, and includes the survey and responses used to help developed the report.