Sound Transit PIMS Testing for T Line Service Begins August 4th

T Line real-time transit information and in-station signage may be inaccurate beginning August 4th, due to testing for the new Passenger Information Management System (PIMS). The PIMS system will improve the passenger experience by providing passengers with accurate real-time arrival data and out of service train information.   PIMS testing will be ongoing during all hours of operation. Trip planner data may be inaccurate during this system testing event, the most reliable source of information about T Line arrival times is the T Line schedule