Why does Toronto's subway system have slow zones?

On any given weekday, the TTC subway sees about one million people hopping on. If you’re a rider, you may have noticed that commutes have been longer because of something called reduced speed zones. These are spots along Lines 1 and 2 that the TTC has identified as places that need track repair. CBC's Kelda Yuen took a ride to see how slow the trains go, and why the TTC says it's necessary. Read more: https://www.cbc.ca/1.7292497 Subscribe to CBC Toronto:    / @cbctoronto   More from CBC Toronto | https://www.cbc.ca/toronto #Toronto #TTC #transit #news #transportation