The Los Angeles County Metropolitan Transportation Authority has identified several transit projects for possible fast-tracking before the Olympics come to Los Angeles in 2024 or 2028.

Those on this map are some of the key projects that are being considered. Estimated completion dates are before fast-tracking.

The Measure M countywide half-cent sales tax approved by voters last year would help pay for many of these and other transportation projects. It is expected to raise $3 billion a year.

Sepulveda Pass Transit Corridor

COST: $5.7 billion

Location: Sepulveda and Wilshire boulevards

to Sepulveda and Ventura Boulevard in

San Fernando Valley

Description: The second phase of proposed freeway and transit improvements linking the Valley, it would create a 10-mile subway, light rail or other underground transit. (A possible multitiered option is pictured.)

CONTRACTOR: TBD

Estimated Completion: 2033

Metro Purple Line Extension

COST: $2.5 billion

Location: Constellation Boulevard and Avenue of the Stars in Century City to Veterans Affairs building on Wilshire Boulevard in Westwood

Description: Third part of a 9-mile subway extension. First piece is under construction; other two parts are approved.

Contractor: TBD

Estimated Completion: 2024

Union Station to Artesia Light Rail

COST: $3.8 billion to $4.6 billion

Location: Union Station downtown to Pioneer Boulevard and South Street in Artesia

Description: Proposed 20-mile rail line

Contractor: TBD

Estimated Completion: 2028 (southern half), 2041 (northern half)

Metro Airport Connector Transit Station

COST: $350 million

Location: 96th Street and Aviation Boulevard, Westchester

Description: Approved transit station connecting Metro’s Crenshaw Boulevard-LAX line under construction to a planned airport people mover.

Contractor: Walsh/Shea Corridor Constructors

Estimated Completion: 2021-2023

Metro Green Line Extension to Norwalk

COST: $250 million

Location: Green Line Norwalk Station to Norwalk Metrolink Station on Imperial Highway

Description: Proposed 2.8-mile Green Line extension

Contractor: TBD

Estimated Completion: 2051

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