Note: These frequently asked questions concern the testing of the Light Rail system and Light Rail trains, unless otherwise noted.
How will the Green Line Extension system be tested?
Systems testing will be conducted in three phases.The first phase started in July 2025 and the third phase will last through 2026. These phases of testing are led by the Systems Contractor, Aldridge-Parsons Joint Venture, in close coordination with Metro Transit staff. Once these phases are complete, the corridor will be turned over from the Contractor to Metro Transit. Metro Transit will conduct their own testing and training activities called “pre-revenue operations” to prepare for revenue operations in 2027.
Where will the light rail trains be tested?
Phase one of testing encompasses the segment of the alignment from SouthWest Station in Eden Prairie, through Minnetonka and Hopkins, and ending just east of the Beltline Boulevard Station in St. Louis Park. Phase two of testing encompasses the segment of Minneapolis from Target Field Station to just east of the West 21st Street Station. Phase three encompasses the entire corridor, including the segment in Minneapolis with the Kenilworth Tunnel from just east of Beltline Boulevard Station to West 21st Street Station.
What kinds of tests are conducted?
Over 4,000 tests will cover the different components of the light rail operating systems. Some of the tests that will be most visible to the public will involve the light rail grade crossing warning device (gate crossing arms, flashers, etc.) and signals, verifying the track alignment, and testing the power delivery to the light rail trains.
How frequently can the public expect to see light rail trains moving in the corridor?
Testing activities can be expected to take place on most weekdays and at any location within the phases outlined above. The public should expect to see trains moving on tracks every day from October 2025 through to the project’s opening in 2027.
How will the trains be moved to the track?
Trains will initially be moved using a railcar mover. This is called “dead wire testing” which is performed to check train clearances and overhead power wire alignment prior to “live wire testing”, which occurs when trains operate under power.
Do the light rail trains use the same tracks as the freight rail trains?
No. Light rail trains and freight rail trains use different tracks. Freight rail operations are not impacted by light rail system and train testing.
What safety precautions do I need to take?
People should never walk along or linger on tracks and always obey train warning systems and any direction from on-site personnel. Community members are encouraged to watch for and listen to signals, warning lights, gates and other visual/audio devices. Follow instructions that are given verbally or included on signage.Trains should be viewed from a safe distance in publicly accessible areas.
Can I take pictures or videos of the trains?
Yes. The public can take pictures or videos of the trains as long as they are following safety precautions. If you post your photos or video to Instagram, tag the project! @GreenLineExtensionMN.
Can we ride the light rail trains while they are being tested? Why/Why Not?
No. Due to safety protocols the public is not allowed to ride the trains until the system is ready for revenue operations. Safety is the number one priority.
What kind of noise can be expected when light rail trains are tested?
Operational noise from the light rail trains comes from the wheels, horn and bell. Other noise that can be expected includes the crossing warning systems and public address systems at stations.
How fast will the light rail trains move during testing?
When pulled (during dead wire testing), trains will usually move 2-5 miles per hour. Under their own power (live wire testing), light rail trains can move at speeds up to 55 miles per hour.
Are there formal notifications about specific testing activities?
The commencement of light rail train testing activities will include public notifications. Materials describing the testing and time frame are provided at GreenLineExt.org.
Can I ride my bike on the trails while light rail trains are being tested?
Yes, however, safety precautions must be followed. There may be periodic interruptions at crossings. Stop for moving trains and follow safety signage.
If I see something that looks like an emergency involving a train, what should I do?
Stay a safe distance away from the incident and call 911.
When is the Green Line Extension expected to begin service for customers?
2027.