Project Information

Bid Title

VASONA SIGNAL CIRCUIT REPLACEMENT

Issuing Agency

Santa Clara Valley Transportation Authority

Location

California

Published Date

May 13, 2026

Closing Date

Jun 23, 2026

Government Level

State & Local

Status

Closed

Ref. #

S26033

Original Source

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Project Description

Project ID: S26033

Title: VASONA SIGNAL CIRCUIT REPLACEMENT

Addenda: 0

Release Date: 5/13/2026

Due Date: 6/23/2026

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VASONA SIGNAL CIRCUIT REPLACEMENT

Solicitation

Engineering and Program Delivery

5413 , 54131 , 541310 , 54133 , 541330 ... show all

Project ID: S26033

Release Date: Wednesday, May 13, 2026

· Due Date: Tuesday, June 23, 2026 4:00pm

Posted Wednesday, May 13, 2026 4:03pm

All dates & times in Pacific Time

Draft Response Events RSVP No Bid40 days, 21 hours, 30 minutes

Post Information

Posted At:Wed, May 13, 2026 4:03 PM
Sealed Bid Process:Yes (Bids Sealed / Pricing Sealed)
Private Bid:No

Overview

Summary

VTA is soliciting proposals from qualified and experienced firms to perform a comprehensive assessment of the existing Vasona Corridor signal system and to provide full engineering design services for signal system upgrades. The existing signal system for light rail within the Vasona Corridor currently utilizes the AFTAC II train detection system and Electrocode DC systems with fixed blocks, managed by the Vital Harmon Logic Controller (VHLC) microprocessor system. The VHLC system also coordinates the US&S gate mechanisms for protecting the highway-rail grade crossings on the corridor, shared with Union Pacific Railroad (UPRR) freight trains.

This design scope should account for the independent, upcoming signals changes on the rest of the VTA system. In completed designs by others, VTA is upgrading UPRR train predictor systems from obsolete HXP-3R to Alstom XP4 systems on Vasona corridor, and overhauling the VHLC microprocessor system with ElectroLogixs on Guadalupe Southline corridor. VTA is also exploring a new design for its future fleet of cars, which anticipates new onboard technologies for positive train control, and a different car length and braking distance. Assumptions on future car specifications should be documented throughout this assessment and design process.

The selected firm will be responsible for preparing complete Plans, Specifications, and Estimates (“PS&E”), and for providing support services during the bidding and construction phases of the Project.

Timeline

Solicitation Publication Date:

May 13, 2026

Pre-Proposal Conference (Non-Mandatory):

May 26, 2026, 11:00am

Join Microsoft Teams Meeting ( https://teams.microsoft.com/meet/210111417000570?p=crNJJcD57r0DviSXRr )
+1 408-889-1601 United States, San Jose (Toll)
Conference ID: 210 111 417 000 570#

Deadline to Submit Questions:

June 2, 2026, 2:00pm

Deadline to Submit Proposal:

June 23, 2026, 4:00pm

Discussions/oral presentations:

July 16, 2026

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