RTD light rail service impacted by global outage

RTD light rail services have been significantly impacted by a global Microsoft outage that first disrupted early morning commuters. The outage initially impacted several servers used in RTD’s transit operations, including the agency’s Computer-Aided Dispatch/Automatic Vehicle Location (CAD/AVL) and Supervisory Control and Data Acquisition (SCADA). Issues related to CAD/AVL have since been resolved, and real-time vehicle information was restored around 8 a.m. 

RTD’s SCADA servers continue to be impacted by the outage and are used to support rail operations and communications. Rail Operations is currently running a reduced number of light rail trains across the entire system due to the SCADA impacts. There are no current impacts to commuter rail services on the A, B, G, and N lines.

Staff is closely working with RTD’s vendors to resolve the issue and restore service levels. At this time, RTD expects the disruption to last most of today but does not have an exact estimated time framefor the issue to be fully resolved. The outage has no impact on customer safety.

A systemwide Service Alert has been issued to communicate the current impacts to customers. Members of RTD’s Impact Team have been dispatched across RTD’s service area to assist customers during the disruption.

Light rail service impacts

• D Line: there is no D Line service until further notice. RTD has extended a bus shuttle between Littleton•Mineral and I-25•Broadway stations.Customers can also use the Route 0 or transfer to E or H line trains at I-25•Broadway Station.
• E, H, R, and W Lines: all four lines are experiencing significant delays with limited trains running. 

Commuter rail service impacts 

• Commuter rail lines are unaffected by the IT outage and are running at normal frequency.

Bus service impacts

• All previous impacts to bus service have been resolved.

RTD encourages customers to sign up for Service Alerts for the latest updates.

As has been widely reported, the outage continues to significantly impact airlines, financial institutions, health care facilities, and mass transportation agencies worldwide. RTD will continue to provide updates to customers and the community about the outage and a full restoration of its services.