Enhanced Quality through an Innovated Process to Design Integration

The Santa Clara Valley Transportation Authority (VTA) recently completed a successful transit improvement program that included the design and construction of many highway and light rail projects. Included in this $1.6 billion capital program were several light rail extensions delivered ahead of schedule and under budget. While this success was the result of several keys factors, design integration played an important role in obtaining a quality design product that was well managed during construction. The recognition that design integration is central to the quality of complex transit projects caused VTA and its designers to establish a process for interface management during design of future light rail extensions. Therefore VTA and its designers developed an innovative and proactive approach for design integration for the Capitol Expressway Light Rail Project (CELR), an existing light rail extension that is currently in the design phase. This project includes a 2.6 mile extension with both median-running and side running sections within an existing expressway. Elevated guideways are used to grade separate large intersections, and multi-modal improvements are proposed to provide light rail, bus, automobile, bicycle and pedestrian facilities. This new concept for design integration includes early identification of project needs and interface points and a methodical plan to ensure that all of these interface elements are well coordinated and reviewed. Since an important component in the success of this approach involves contribution from important stakeholders—such as Operations and Maintenance departments and local jurisdictions— the design integration process also includes a process for understanding and managing these related stakeholder issues. Before preliminary engineering commenced for the CELR Project, VTA expressed its desire for a new approach for design integration of this light rail extension to the General Design Consultant selected to perform the project design. This was important since the design consultant, Valley Transit Consultants (VTC), was an association comprised of a prime consultant (Rajappan & Meyer Consulting Engineers), several other specialty consultants (AECOM, Hatch Mott MacDonald, Biggs Cardosa Associates, and HMH Engineers), and numerous sub-consultants providing associated project support.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures;
  • Pagination: 9p
  • Monograph Title: Rail Conference 2009 Proceedings

Subject/Index Terms

Filing Info

  • Accession Number: 01157823
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 2 2010 1:21PM