Programs & Projects: SCORE

Metrolink's Southern California Optimized Rail Expansion (SCORE) is an ambitious, long-term capital improvement program designed to modernize and strengthen Southern California's regional rail network. Through strategic investments in track, signal, station, and grade crossing improvements, SCORE will enhance the reliability, capacity, safety, and sustainability of Metrolink service for the communities it serves today and for generations to come.

With SCORE, the Region Gets More

Many SCORE projects are already underway or completed, with additional improvements being delivered in phases over the coming years. Several key investments are expected to be in place ahead of the 2028 Olympic and Paralympic Games, helping support increased regional mobility during that period, while the broader program will continue delivering benefits well beyond 2028.

The Los Angeles County Economic Development Corporation (LAEDC) was commissioned to study the economic impacts of the SCORE Program. The study found that these investments will generate economic activity during construction while creating lasting transportation, environmental, and quality-of-life benefits across Southern California.

With SCORE, the region gets more:

Enhanced rail safety and reliability
More frequent and flexible rail service throughout the day
Better access to jobs, education, housing, and opportunity
Stronger connections with local and regional transit providers
Economic growth and workforce development
Reduced emissions and cleaner air
Improved mobility for residents, visitors, and future generations

Score Project Map

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SCORE Projects

Simi Valley Double Track

The Simi Valley Double Track Project is included in Phase 1 of the Metrolink SCORE improvement project that will increase capacity at the station along the Ventura County Line.

Burbank Junction Speed Improvements

The proposed Burbank Junction Speed Improvements (Project) is included in Phase 1 of the Metrolink SCORE project that will improve the train services by allowing more frequent and safer operations as well as increasing service speeds at the Burbank Junction.

Chatsworth Station Improvements Project

The proposed Chatsworth Station and Signal Improvements Project is included in Phase 1 of the Metrolink SCORE Project that will reduce commute times, enhance service, and offer better safety for passengers transferring at Chatsworth Station between Metrolink and Metro’s D Line.

Marengo Siding Extension Project

The Southern California Regional Rail Authority (Metrolink) is advancing the Marengo Siding Extension Project (Project) to inspect, repair and maintain the existing track to operate smoothly and safely, while constructing a new siding track.

El Monte Siding Extension Project

The proposed El Monte Siding Extension Project includes new rail infrastructure, a siding extension that will be constructed within Metrolink's right-of-way, and grade crossing improvements at the El Monte Station and at Tyler Avenue.

Rancho Cucamonga Siding Extension Project

The proposed Rancho Cucamonga Siding Extension Project includes safety-related improvements at two at-grade crossings at Hellman Avenue and Archibald Avenue and a new track configuration that will allow trains to pass one another in opposite directions on separate tracks.

Serra Siding Extension Project (OCTA)

The project proposes to extend 1.2 miles of the siding track and improve segments of the main track to enhance operational services. For more information, visit www.octa.net/serrasiding.