Light Rail Speed Restrictions

A speed restriction is a section of track where trains run at slower-than-normal speeds due to any number of ride quality, track, or maintenance issues. Speed restrictions, also known as slow zones, are put in place to ensure customers and employees are safe until any necessary repairs or preventive maintenance work is completed. Track conditions that make speed restrictions necessary can develop for several reasons, including the age of the rail’s infrastructure and weather.

In May 2024, RTD staff began using an enhanced inspection methodology on the Southeast Corridor’s light rail track. The thorough and comprehensive inspections included an examination of the track, ties, ballast, clips, and other related infrastructure.

The intent of RTD’s inspections is to identify preventive maintenance that may need to be addressed in the near-term or future. A number of minor issues and cosmetic defects were discovered during RTD’s recent track inspection, and speed restrictions have been temporarily put into place until maintenance issues are resolved.

No. RTD will not provide bus shuttles between stations in the Southeast Corridor’s slowdown zones while trains continue operating along the alignment. The agency also does not have the required people power resources to expand its bus operations at a magnitude necessary to support bus shuttles. However, as overnight maintenance work impacts light rail service, shuttles will be provided.

Maintenance and repair work timelines will be updated online and shared with customers and the public through media advisories, Service Alerts, and social media. Customers impacted by the speed restrictions are encouraged to check this webpage or sign up for Service Alerts.

RTD has a multiple bus routes operating along the Southeast Corridor to support customers. Specifically, the routes below provide regular service and connections to some of the impacted stations served by the E, H, and R lines.

Individuals traveling anywhere in Lone Tree and Meridian can use the Link On Demand shuttle service to access light rail stations in that area.

Regular inspections guarantee that the public’s previous investments in RTD’s system remain intact. Maintaining assets in a state of good repair also ensures that the light rail system is reliable and operationally safe.

Speed restrictions are temporarily applied to a section of track until necessary maintenance work is performed. The Southeast Light Rail Corridor remains safe for RTD to continue running trains. If, at any time, the track was deemed not safe for operations, light rail services would immediately cease.

RTD proactively issued the current speed restrictions out of an abundance of caution. Agency decisions are based in applying the highest level of standards to prioritize safe operations.

Yes. Speed restrictions are regularly implemented by transit agencies to ensure rail operations remain safe. There are many recent examples of other mass transit agencies implementing speed restrictions. For example, the Massachusetts Bay Transportation Authority (MBTA) currently has a number of speed restrictions in place across its system to support ongoing track renewal work.

RTD concluded its multi-year project to repair the caps of retaining walls that run along I-25 between Denver and Lone Tree on Thursday, August 22. The project, which was initially scheduled to run through mid-September, concluded approximately three weeks ahead of schedule. All light rail trains that were required to single track around work crews have commenced double-track operations.

Even though some temporary speed restrictions remain in place along the Southeast Corridor, customers will notice meaningful improvements to travel times along the E, H, and R lines.

RTD began a full-depth reconstruction of five intersections in the Downtown Loop in May 2024. The first phase of the project, which was completed three weeks ahead of schedule, rebuilt rail infrastructure to improve safety and mobility and addressed deteriorating transit infrastructure. Subsequent phases of the reconstruction project will resume in 2025.