Regional Connector Transit Corridor Design Build

Client – Los Angeles County Metropolitan Transit Authority (LACMTA) Los Angeles, CA
Engineering & Construction Value – Approximately $927,230,000
Construction Value – Approximately $946M
Delivery Method – Design Build
Completion Date (Construction) – 2020

This Design Build project provides final design and construction of 1.86 miles of light rail for the Regional Connector Transit Corridor Project with three new underground stations. The project will create an underground trunk line linking the existing terminus of the LACMTA Blue and Expo Lines to the Gold Line in a new underground alignment in Downtown Los Angeles. The project involves professional services and materials to perform final design, construction, testing, and commissioning to turn over the Project to Metro complete and ready for revenue operations.

Teaming with the design team Hatch Mott MacDonald, Armand Consulting Inc. (ACI) leads the Communications Engineering Design efforts for this project to provide a complete design package for Public Address, Visual Message Signs, Closed Circuit Television, Gas Detection, Seismic Detection, Station Intrusion and Portal Intrusion System. ACI works closely with the Project Systems Design Manager and coordinates to interface with other sub-systems and the entire communications team, architects, MEP designers and all other systems leads.

Significant systems elements include: RCCmap

  • Public Address, Visual Message Signs, and Transit Passenger Information System
  • Gas Detection and Alarm System
  • Seismic Detection System
  • Intrusion Detection and Access Controlled System
  • Tunnel Portal Surveillance and Alarm System
  • Closed Circuit Television System
  • Interface with Supervisory Control and Data Acquisition System
  • Interface with Fire Detection System
  • Interface with LACMTA Fiber Optic Backbone and Distribution Fiber
  • Integration and coordination of this system with other LACMTA systems

The design package entails providing plans and specifications, system cost estimation, CAD drawings, calculations and design basis reports, quality assurance and control, and cutover strategy.