O-Train delays on first day of upgraded service

People taking the newly upgraded O-Train Trillium Line on Monday were greeted with significant delays.

The upgraded service is supposed to run four trains at once every 10 to 12 minutes, but switch errors contributed to delays of more than half an hour for some riders on Monday morning.

The trains start running at 6 a.m. on weekdays, at 6:30 a.m. on Saturdays and 7 a.m. on Sundays. Service is expected to gradually increase so trains are running every eight to 10 minutes.

The $60.3-million upgrade includes six new trains, as well as improvements to the signal system, train controls, stations, tracks, train yard and more.

Here's what some riders had to say about their experience on social media Monday morning.