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2019 DCS Design Criteria PDF

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DESIGN CRITERIA 2019 This page intentionally left blank d. District Department of Transportation MESSAGE FROM THE CHIEF ENGINEER We are very pleased to announce the completion of the technical update to the DC Streetcar Design Criteria (January 2012). This document has been updated to reflect the latest streetcar industry standard and design guidelines, and lessons learned since the release of the first edition in 2012. The DC Streetcar Design Criteria {2019 Revision) provides both general uniform and minimum guidelines and specific design criteria for use in the development, design and construction of the streetcar system. We are confident that the use of this document will enable the District Department of Transportation (DDOT), agencies, consultants, planners, engineers, architects and other professionals to more efficiently translate DC requirements into acceptable design solutions. The DC Streetcar Design Criteria {2019 Revision) is intended to serve as a living document that will evolve to reflect changes in industry, engineering, operation, and maintenance, and policy of DC Streetcar program. Implementing a successful streetcar system that will serve the District of Columbia is our key goal. With the development and update of this Design Criteria and Standard Drawings we have taken a very important step towards this direction. ~~ Dawit Muluneh, PE Chief Engineer Associate Director This page intentionally left blank d. District Department of Transportation FOREWORD The DC Streetcar Design Criteria (2019 Revision) is a technical update to the previous Design Criteria issued in January 2012. This comprehensive document provides a general framework and the basis for a uniform design for the DC streetcar system. These criteria allow the city's project team and partners to develop preliminary and final designs for any streetcar project that might be undertaken by the District I Department of Transportation (DDOT). These criteria are not in~ended to replace the level of initiative and competence expected from DDOT, agencies, consultants, and professionals in the performance of their duties. It is not a substitute for engineering judgment and sound engineering practice. Professionals involved in -the DC streetcar program are encouraged to carefully consider the principles of the Design Criteria in the context of the needs of individual projects. Exceptions may apply in special cases. If a guideline is not appropriate and that a more appropriate solution is available, suggestions to this effect should be raised for consideration by DDOT. The DC Streetcar Design Criteria (2019 Revision) should be viewed as a "living document," which is subject to change or revisions as we continue to work towards our goal to implement a successful extensive streetcar system in the city. A strong foundation is needed that provides guidance to achieving this goal. The completion of this Design Criteria is one the steps towards achieving this foundation. ~g Diyar Bozkurt Project Manager Program Manager (Construction & Engineering) Transit Delivery Division Infrastructure Project Management Division This page intentionally left blank ACKNOWLEDEMENTS    The DC Streetcar Design Criteria (2019) was prepared under the guidance of the District Department of  Transportation with the assistance of HDR Engineering Inc. in association with ZGF Architects LLP and  LTK Engineering Services, and Jacobs Engineering Group Inc.    Many thanks to the people who helped make this document possible:    Infrastructure Project Management Division, DDOT   Dawit Muluneh   Paul Hoffman   Diyar Bozkurt   Ali Shakeri   Errol Williams    Traffic Operations & Safety Division, DDOT   Gregg Steverson    Transit Delivery Division, DDOT   Emile Smith   James Benton   Howard Chang   Raka Choudhury   Charles Dingboom   Diane L. Patterson    Public Space Regulations Division, DDOT   Dr. Petrosian Levon  Urban Forestry Division, DDOT   John Thomas   Earl Eutsler    Parking & Ground Transportation Division, DDOT   Evian Patterson   Jerry Lyle    Planning and Sustainability Division, DDOT   Stephen Plano      DC Streetcar Design Criteria – 2019 | Acknowledgements  Jim Sebastian   Reginald Bazile   Darren Buck   George Branyan   Mike Goodno   Jamie Hanson   Robyn Jackson    Public Information Division, DDOT   Terry Owens   Mario Sessions    Equity & Inclusion Division, DDOT   Cesar Barreto   Brett Rouillier   Alice Kelly    Office of the General Counsel, DDOT   Glenn Dubin   Cheri Hance Staples   MaeLena Cephas    DC Office of Planning   Dan Emerine    DC State Historical Preservation Office   Andrew Lewis    DC Department of Environmental and Energy   Julienne Bautista    National Capital Planning Commission   Lucy Krempf    HDR Engineering, Inc.   Marc Soronson   Maggie Adams   Rob Victor    DC Streetcar Design Criteria – 2019 | Acknowledgements  Kevin Walsh   James Brown   Ron Garraffa   Javier Ortiz‐Velez   Hope Gist   Stacy Weisfeld   Johnathan Weidman   Mike Jeansonne   Dan Nelson   Kate Ko   Jacqueline Lavalleye   Christopher Oswald    ZGF Architects   Otto Condon    LTK Engineering Services   Mark Cohen    Commun‐et   Ian Swain   Charlotte Ducksworth    Interfleet   Frank Pierson  RATP Rev USA   Keith Jones   Cleve Cleveland   Gretchen Wolfe   David Sitra   Ulysses Johnson    Jacobs Engineering Group Inc.   Damian Carey   Kenneth Shields   Alicia Rowe   Abbe Karp   Robert McPherson      DC Streetcar Design Criteria – 2019 | Acknowledgements This page intentionally left blank

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