Five development teams will vie for the opportunity to help the Los Angeles Metropolitan Transit Authority build a heavy-rail public transit corridor through Sepulveda Pass in the rugged Santa Monica Mountains, creating a high-capacity, high-speed connection between the city’s west side and the San Fernando Valley.

预计新的运输线预计将耗资近140亿美元，以减轻I-405高速公路上的拥挤，I-405高速公路是美国最繁忙且经常拥挤的高速公路走廊之一，每天的交通量定期超过40万辆汽车。

大都会在1月中旬宣布，入围的团队领导人和主要行业合作伙伴包括：

•与Dragados USA和Stantec的ACS基础设施开发公司

•Bechtel

•与HDR Engineering，Skanska Univer和Gensler一起使用BYD Transit Solutions

• Fengate, with Lane Construction

•佩里尼（Perini），帕森斯（Parsons and Parsons）和全体集团

Each team will now submit a Predevelopment Agreement (PDA) proposal to assist with planning and design of the project, which currently calls for the 15-mile initial phase between Van Nuys and West Los Angeles to begin operations in 2033 with up to eight stations and connections to existing Metro transit lines. A 9-mile second phase, currently set to open in 2057, would extend the transit line to Los Angeles International Airport. A local transportation sales tax measure passed in 2016 will provide up to $9.5 billion in funding for both phases.

Later this summer, Metro plans to select up to two PDA partners to refine the project’s design, construction, financing and operational approaches, taking advantage of early contractor involvement, according to the agency. One or both PDA partners could ultimately oversee project development, and be given the opportunity to build, operate and maintain the line, potentially accelerating construction, improving project performance and mitigating key project challenges, according to the agency.

地铁发言人戴夫·索特罗（Dave Sotero）补充说，可以从过去几年中开发出的地下和下面的重轨和单轨概念中提取选项，或者是PDA合作伙伴提出的想法。

索特罗说：“我们也可以选择朝着不同的方向发展。”“我们给自己尽可能多的灵活性。”

That could include fast-tracking the project’s schedule to have least part of the system operational for the 2028 Summer Olympic and Paralympic Games.

Sotero说：“这是找到具有专业知识的创新合作伙伴的机会，可以帮助我们加速时间表。”