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 - Valley, Ventura, and East San Gabriel Communications Backhaul


The Valley Ventura and E. San Gabriel (VVSG) Communications Backhaul project is an advanced communications network that will transport Centralize Traffic Control (CTC) and Positive Train Control (PTC) data from wayside locations to the Metrolink Operations Center (MOC). The network includes an array of communication technologies including microwave links, fiber optic cables, Ethernet radios and MPLS to achieve the required level of technology diversification and redundancy. Work will include the installation of microwave towers, communications shelters, backup generators, batteries, equipment racks, conduit, hand holes, etc. installed at wayside locations, mountain tops and the top floor of a corporate office building.

A driving force behind the VVSG project is to provide a reliable and redundant infrastructure for the transmission of vital data between the Back Office Server (BOS) and the wayside signal locations to support the PTC initiative. PTC base radios will be deployed at strategic locations along the ROW that will support vital communication between the wayside and the BOS at the MOC. In addition to this requirement, the network needs to communicate with all rail operators that use or share the SCRRA ROW. This creates the need for infrastructure that is not only reliable and secure but that is interoperable with outside systems.

    Project Highlights

  • Construction Management and Inspection Duties
  • Expanded role to develop and propose alternate microwave, fiber and Ethernet networks
  • Work with Project Manager and SCRRA to develop improved schedules and cost saving options
  • Field surveys of all fiber optic equipment locations
  • Field surveys of all proposed mountain top facilities

PRE’s responsibilities include the following activities:

  • Construction Management – PRE has provided the Resident Engineer and support staff to manage the construction including: tracking and distributing contract documents, leading progress meetings and distributing meeting minutes, processing contractor payment applications, reviewing schedules, negotiating change orders and resolving disputes between the agency and the contractor as issues arise.These management activities include coordination with outside agencies and working with the various departments of SCRRA to ensure proper procedures are followed and expedite construction activities.
  • Construction Inspection – PRE has also provided a team of inspectors to oversee all aspects of the construction from site visits and potholing all the way to final cutover and punch list development. These inspectors assist in coordinating construction activities and prepare detailed reports of their daily activities.
  • Design Support – PRE has been involved in the development of design alternatives as well as preparing design documentation needed to complete the work shown in the contract documents. This support has involved additional site visits, suggested redesign alternatives and CAD work to assist in the completion of the project.

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.