Link light rail runs at grade on Martin Luther King Jr Way S with street traffic and pedestrians crossing the track at regular intervals. Coordinating signals to ensure that trains and cross traffic flow safely with minimal delays is an ongoing process that will continue after light rail opens for service.
Do you have questions about how traffic signals work together with Link light rail signals? If you do, please leave them in the comments. I will be meeting with an SDOT signal operations engineer this Thursday and will try to have your questions answered.