Meeting_Body
OPERATIONS, SAFETY, AND CUSTOMER EXPERIENCE COMMITTEE
OCTOBER 24, 2024
Subject
SUBJECT: METRO B AND D LINES AUDIO FREQUENCY TRACK CIRCUIT AND INTERLOCKING RELAY LOGIC REPLACEMENT
Action
ACTION: APPROVE RECOMMENDATION
Heading
RECOMMENDATION
Title
AUTHORIZE the Chief Executive Officer to:
A. AWARD a firm fixed price Contract No. AE117449000 to B & C Transit, Inc. for the Metro B and D Lines Audio Frequency Track Circuit and Interlocking Relay Logic Replacement Project in the amount of $59,858,500, effective November 1, 2024, subject to resolution of any properly submitted protest(s), if any; and
B. INCREASE the Life of Project (LOP) Budget for the Metro B and D Lines Audio Frequency Track Circuit and Interlocking Relay Logic Replacement Project by $20,000,000 from $50,100,000 to $70,100,000.
Issue
ISSUE
The Metro Railway Train Control system uses track circuit modules and relay logic (electromechanically operated vital and non-vital relay switches) to manage the safe movement of trains. The current train protection system on the B (formerly Red) and D (formerly Purple) Lines has continuously operated since revenue service began in 1993. These track circuit modules and relay logic (non-vital and vital relays) are now reaching the end of their useful life and require replacement. They are no longer supported by the Original Equipment Manufacturer (OEM), are not readily available in the industry, and potential replacement relays are not cost-effective due to the difficulty of installation. Approval of a contract award and an increase in the LOP budget are needed to proceed with the replacement and modernization work.
Background
BACKGROUND
The track circuit modules and relay logic (non-vital and vital relays) associated with the train control system are reaching the end of their useful life. The OEM no longer supports the relays, and their scarce availability creates a challenge for the Maintenance of Way (MOW) workforces to keep the...
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