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FRA approves extended G Line testing period

RTD has received approval from the Federal Railroad Administration (FRA) to enter the next phase of testing for the G Line, using multiple trains more frequently starting July 20, 2018.

While this authorization represents a significant step forward in the process to open the commuter rail line for passenger service, an opening date has not yet been announced.

To this point, RTD and its contractor, Denver Transit Partners (DTP), have been conducting limited testing along the 11.2-mile line between Union Station and Wheat Ridge. That testing began last fall and has been underway between 8 a.m. and 6 p.m. on weekdays since the start of this year.

Beginning July 20th, testing of as many as three trains is to take place every half hour starting as early as 3:30 a.m. and extending through 1 a.m. the following day. This initial period with multiple trains is intended to help operators become familiar with the line.

The next phase of this testing will simulate the full daily service schedule of nearly 21 consecutive hours each day. During this phase, as many as six trains will be running along the line every day between 3 a.m. and 1 a.m. the following day, at 15- and 30-minute frequencies.

With more trains running for longer periods of time throughout the day, people should exercise caution as they move and drive through the area. During testing, train operators will continue to sound their horns when passing through intersections. Until quiet zones are established, the use of train horns and other safety measures are important to make drivers and pedestrians aware of train movements. RTD will announce the start of quiet zones for the G Line once such approvals from the FRA are in place.

Learn about Quiet Zones

Crossing gates may stay down for extended periods of time. In case of an emergency, the public can call 720-460-5955, the grade-crossing hotline, or 303-299-3911 after hours. Attendants will continue to be stationed at all G Line grade crossings until RTD receives the necessary state and federal approvals to remove them.