Mass Transit

SEP-OCT 2014

Mass Transit magazine features agency profiles, industry trends, management tips and new product information.

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Te Los Angeles to San Diego (LOS- SAN) rail corridor is Amtrak's second busiest rail corridor in the U.S. As such, the LOSSAN rail corridor is the target of a multimillion-dollar upgrade proj- ect designed to improve the capacity and reliability of on-time passenger and freight train services. Te frst phase is in Carlsbad, San Diego County, Califor- nia, and it's called the Carlsbad Double Track and Bridge Project. The purpose of the Carlsbad Dou- ble Track and Bridge Project is to im- prove the capacity and reliability of on- time passenger train service along the Carlsbad portion of the LOSSAN cor- ridor. The problematic bottleneck was the single main train track at Carlsbad Poinsettia Station. The solution was to create two main tracks, each 5.1 miles long, by extending an existing second main track 1.9 miles. WORKERS ON the Carlsbad Doubletrack and Bridge Project working at night. Photos by J.L. Patterson & Associates THE REDESIGNED bulb-tee girders are the highlight of the Carlsbad Double Track and Bridge Project, saving about $750,000 of construction costs and two months of construction time. TIMBER TRESTLES from a bridge built in 1948. own on Commuter Rail SEPTEMBER/OCTOBER 2014 | MassTransitmag.com | Mass Transit | 67

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