Systems Integration Testing begins!
After several years of construction, the Downtown Redmond Link Extension will begin testing various aspects of the system to prepare for operation. As early as late April, nearby residents may notice new activity on the tracks and at stations, including dead car tows, rail grinding, and testing of systems like communications and signal systems. Please see below for more information about the new activities.
This is an exciting new phase of the project that brings us one step closer to opening the Downtown Redmond Link Extension. While testing is right around the corner, we’ll keep working to finish building the new 3.4 mile extension to Downtown Redmond. Make sure you are signed up for alerts like these to stay up-to-date on construction activities.
Systems Integration Testing includes:
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Rail grinding: Rail grinding is a routine preventative maintenance activity that prolongs the lifespan of light rail tracks. Crews grind away the top layer of material from the rail. The work generally occurs when rail is installed and then repeated every 2-3 years. Nearby residents and businesses should expect to hear increased noise and see localized sparks as a result of this work.
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Dead car tows: Dead car tows involve crews towing a single light rail car along the tracks at walking speed to test clearances around the trains when they begin running. Nearby residents and businesses should expect to see light rail vehicles on the tracks moving slowly along as crews verify clearances.
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Rider information and alert systems testing: Crews need to test systems like fire alarms, track intrusion detection, rider information, and more before the system opens. Nearby residents and businesses should expect to hear these systems being tested prior to the light rail line opening for service.
 Read on for important safety information!
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