Future Projects


    The N Line will take passengers from Union Station to Thornton in 29 minutes.


    The Central Rail Line Extension would extend the current rail line in downtown Denver north to the University of Colorado A Line and create a new line of service called the L Line.


    The Southwest Rail Line Extension would extend the C and D Line service south to Highlands Ranch.


    RTD continues to look for ways to move the rest of the Northwest Rail Line to Boulder and Longmont forward as funding becomes available.

Completed Projects


    Denver's train to the plane opened on April 22, 2016, providing easy, affordable, and reliable connections between downtown Denver, Denver International Airport, and the many communities along I-70.

  • B LINE

    The B Line transports riders from the historic center of Westminster to the dynamic Union Station in downtown Denver in less than 15 minutes.


    The Southeast Rail Line Extension extends the E, F and R Lines service south to Lone Tree.

  • G LINE

    The G Line brings faster, more frequent service to Denver, Arvada, and Wheat Ridge. The 11-mile commuter rail line offers greater connections to more destinations while transporting passengers from Wheat Ridge to Union Station in 27 minutes.

  • R LINE

    The R Line opened on February 24, 2017 and transports riders from southeast Denver through Aurora with connection to the University of Colorado A Line at Peoria Station.

  • W LINE

    The first FasTracks rail line opened on April 26, 2013, bringing you 12.1 miles of new rail between Denver, Lakewood and Golden.


    Bus Rapid Transit service on the Flatiron Flyer started January 3, 2016. The Flatiron Flyer provides frequent, reliable and predictable service between Denver and Boulder along US 36.

  • Union Station Icon UNION STATION

    The new Union Station opened in the heart of LoDo on May 9, 2014. Union Station includes a new 22-gate underground bus concourse and the new commuter rail platforms.

  • Metroride  FREE METRORIDE

    The Free MetroRide began high-frequency rush-hour service between Union Station and Civic Center on May 12, 2014.

Quality of Life Study

The Quality of Life (QoL) Study is RTD's data-driven evaluation of progress toward meeting the FasTracks Program goals. The QoL Study focuses on the “quality of life” in the context of those areas most affected by transit improvements and those specifically addressed in the FasTracks Plan: mobility, environment, economic activity, development, and land use.

Learn more about RTD's Quality of Life Study

Transit-Oriented Development Projects

Development at and around the system's transit stations is an exciting element of the FasTracks program. As the Denver region's public transit agency, RTD plays an important role in the implementation of Transit-Oriented Development (TOD). TOD is characterized by a pedestrian-oriented environment that allows people to live, work, shop and play in places accessible by transit.

Learn more about RTD's Transit-Oriented Development Initiatives

FasTracks Map

FasTracks in Focus

Northwest Area Mobility Study

The 13-month Northwest Area Mobility Study started in May 2013 and developed a prioritized list of mobility improvements for the Northwest area of RTD's service area.

Read more about the Northwest Area Mobility Study

Eagle P3 Public-Private Partnership

The Eagle P3 public-private partnership is being utilized to complete the East Rail Line, Gold Line, commuter rail maintenance facility, and the Northwest Rail Line Westminster segment.

Learn more about Eagle P3

Commuter Rail has arrived in Denver

Commuter rail is a new, faster, heavier type of train that opened for service on the East and Northwest rail lines in 2016. Service began on the G Line through Arvada and Wheat Ridge in April 2019.

Find out more about the commuter rail