Conceptual Engineering

Downtown East Valley

Conceptual Engineering

Following the completion of the Major Investment Study (MIS) and the selection of a Preferred Investment Strategy, the Downtown East Valley Project moved into the Conceptual Engineering phase for the Santa Clara/Alum Rock Corridor, Capitol Expressway Light Rail and Monterey Highway Bus Rapid Transit projects.

During Conceptual Engineering (CE, 10% design level) the project definition is further refined. This involves additional study of the following project elements:
  • Project alignment options and details
  • Station locations, including design elements and configuration
  • Demand for Park-and-Ride lots along the corridor
  • Operating and transit service plan, including interface between bus and other rail services
  • Existing and future traffic conditions, including recommendations for grade separations and other modifications to the existing roadway network
  • Existing and future transit ridership
  • Right-of-way needs
  • Transportation System Management (TSM) alternative
  • Project implementation and phasing plan and
  • Refined cost estimates.

Preliminary Engineering

During Preliminary Engineering (PE, 35% design level), the plans developed for Conceptual Engineering are further advanced through the following tasks:
  • Update engineering and system operation plans
  • Refine urban design features and plans
  • Evaluate cost efficiencies
  • Refine cost estimates
  • Prepare utility and right-of-way plans
  • Prepare for the final design of the project.
Public involvement is a key element throughout the Conceptual and Preliminary Engineering phases.


Final Design and Construction

Final design moves the project to the 100% engineering design level. Decisions will be made on design refinements, engineering issues, landscaping, as well as the type of building materials. A community outreach program for construction will be developed during the final design phase.

For a listing of presentations, please visit the Library page.