Pacific Railway Enterprises, Inc. (PRE), A Woman Owned Corporation specializing in Railroad System Design and Consulting has been in operations since May 1994, provides an array of services to our clients. PRE's staff have amassed an impressive accumulation of railroad communications and signal expertise in the areas of railroad freight, light rail, commuter and transit signal design, inspection, construction management and maintenance services.

  • A Woman Owned Corporation specializing in Railroad Signal Design and Consulting
  • Certified Small Business - CA No. 36200
  • California DBE, NAICS Codes 541330, 541340, 541512
  • Washington DBE - No. D2F0024183
  • Texas DBE/WBE - CIN #WFDB91595N0119
  • Oregon DBE/WBE - No. #8559
  • New Mexico DBE - No. 18-02-630
  • Utah DBE
  • Florida DBE
  • Massachusetts DBE

Major Project Accomplishments

SCRRA - Orange County MSEP, Crossing Safety Enhancement and Communication Expansion


In 2005, OCTA's board of directors approved the Metrolink Service Expansion Program (MSEP) to provide additional service (16 Trains) between Fullerton and Laguna Niguel/Mission Viejo operating on as low as seven minute headways. The $382.5 million MSEP also consisted of safety improvements that are being made to fifty-five (55) highway grade crossings that upon completion will meet Federal Railroad Administration (FRA) requirements for establishing numerous quiet zones along the corridor. The final systems piece of the project was to design and install a state-of-the-art communication network consisting of a fiber optic SONET network between Fullerton and San Clemente and digital microwave system linking the fiber network to the Metrolink Operations Center (MOC) located in Pomona, California.

SCRRA placed Pacific Railway Enterprises, Inc. (PRE) into several key roles on this project. SCRRA tasked PRE with developing the rail systems design for the new signal and communication system. PRE’s work included:

    Project Highlights

  • Final systems plans, specifications, and estimates
  • Vital systems application software logic
  • Detailed design documents for Automatic Highway Warning Systems (AHWS)
  • Design Support During Construction (DSDC)
  • Construction phase services (Management and inspection)
  • Supported SCRRA installation forces in the testing and commissioning
  • Generating Bill of Materials (BOM) for each field location
  • Material management including inspection of materials
  • Assisted SCRRA staff in generating purchase orders, cost accounting and audits

This project fully exercised PRE’s complete range of services, from planning and design stage through installation and commissioning of the new systems. In addition to providing exceptional support for the signal system, this project gave PRE a chance to showcase our communications department and personnel on a very high profile project.

PRE personnel produced complete contract documents for the communication network. This allowed SCRRA to solicit by way of an IFB an installation contractor to provide the underground fiber optic cable between Fullerton and Dana Point and a digital microwave system from wayside locations located along the Right-Of-Way, at mountain top locations, and at the Metro Link Operations Control (MOC) office in Pomona.

PRE’s technical staff continues to assist in the detailed phasing plans by providing design modifications as required by SCRRA. This includes supplying the application logic software for new locations and modifies existing software for existing locations as needed for each phase. PRE Communication personnel also are still providing DSDC functions when requested by SCRRA.

Client Information



Metrolink is truly a united effort, made possible by the Los Angeles County Metropolitan Transportation Authority (Metro), the Orange County Transportation Authority, the Riverside County Transportation Commission, San Bernardino Associated Governments and the Ventura County Transportation Commission. In 1991, the Southern California Regional Rail Authority (SCRRA), a Joint Powers Authority (JPA), consisting of the five county transportation planning agencies listed above, was formed to develop a regional transit service to reduce the congestion on highways and improve mobility throughout the Southern California region. In October 1992, Metrolink was born.