Design of Signals and Communications

Client: San Francisco Municipal Railway
Location: San Francisco, CA
Value: $7.5 Million (Construction)

The signal system design work included the design of the yard signal system based on entrance/exit routing for the 80-car storage yard and maintenance facility, two interlockings protecting grade crossings with the Union Pacific Railroad and highway street traffic, and the interface to the Third Street Line. The project included microprocessor based interlocking equipment, CRT workstations utilizing graphical user interface (GUI) for train control, a mosaic modelboard for indications, interfaces to highway traffic signals, train to wayside communications for control of selected track switches, security systems, and traction power control systems.

The communications design included telephone systems, PA systems and LED sign systems throughout the Operations Control Center, the Main and Paint Shop buildings, and the outside yard storage tracks.

Services Provided:

• Preliminary, 65%, 95% and Final Design
• Specifications
• Drawings
• System Operations Definition
• Construction Cost Estimates.

Special Features:

• Interface to Highway Traffic Signals
• Mosaic Indication Panels
• CRT Train Controls.