Supplementing and Updating TCRP Report 52: Joint Operation of Light Rail Transit or Diesel Multiple Unit Vehicles with Railroads

This digest updates information in Transit Cooperative Research Program (TCRP) Report 52 to recognize the Federal Railroad Administration (FRA) and Federal Transit Administration (FTA) joint statement of policy concerning shared use issued in July 2000, provides supplemental information concerning the international experience with joint operation, and updates a discussion of the key issues and conclusions. As in TCRP Report 52, this digest defines joint operation as commingled, simultaneous train operation on shared track by railroad trains (freight, passenger, or both) and rail transit vehicles that are not fully compliant with current FRA regulations. The summary of TCRP Report 52 is intended to provide continuity between the original report and this update. This digest is organized as follows: Preface: Background and Summary of TCRP Report 52; (Chapter 1) Introduction; (Chapter 2) Summary of FRA and FTA Joint Policy Statements; (Chapter 3) Supplemental Information Since TCRP Report 52; (Chapter 4) Track-Sharing Issues Updated; (Chapter 5) Updated and Refined Conclusions; Acknowledgments; Supplemental Bibliography; Glossary of Joint-Use Terms and Abbreviations; (Appendix A) Summation of New-Generation DMU Rail Cars; (Appendix B) Light Rail and Bus-Derivative Diesel Multiple Unit Cars; and (Appendix C) Representative Carriers Using New-Generation, Light Rail-Derivative Diesel Multiple Unit.