Meeting_Body
REVISED
REGULAR BOARD MEETING
JUNE 22, 2017
Subject
SUBJECT: METRO BLUE LINE SIGNALING REHABILITATION AND OPERATIONAL IMPROVEMENTS PROJECT
Action
ACTION: AWARD CONTRACT
Heading
RECOMMENDATION
Title
AUTHORIZE the CEO to award Contract No. C1081 to Mass Electric Construction Co/Parsons, the selected best value contractor to design and construct the Blue Line State of Good Repair signaling rehabilitation and operational improvements for a contract value of $81,513,000.
Issue
ISSUE
The existing MBL light rail transit system is over 25 years old. Signaling and Overhead Catenary Systems (OCS) are in need of rehabilitation as they are essential subsystems for safe and effective light rail operations. Currently, the MBL is operating with a limited number of interlockings, which are trackwork and signaling components that allow trains to cross from one track to another during planned maintenance or in the event that there is a disabled train. With the existing six interlockings between Washington Station and Willow Station, some segments of the MBL are limited to 30 - 40 minute headways during emergency situations. The addition of four new interlockings is expected to improve single tracking headways to approximately 15 - 20 minutes and allow a better overall emergency operation response.
Finally, the MBL Division 11 Yard is operating with an obsolete signal system that is very limited and relies on manual control. The Yard signal system portion of this project will update the signaling of Division 11 and provide a more efficient and safe yard operation.
Background
BACKGROUND
As a State-of-Good-Repair project, Metro Blue Line Signaling Rehabilitation and Operational Improvements (Signal/Interlocking/OCS) Project will:
1. Replace all vital relays
2. Install four additional interlockings and one siding at 95th Street
3. Install the associated Solid State Interlockings (SSI) and the associated communications equipment
4. Install new freq...
Click here for full text