"New subway cars with reduced-friction braking and communications-based train control (CBTC) have contributed to improved..." (Luczak, 2021)
References:
Luczak, Marybeth. (2021, August 4th). Study: Torontonians Breathe Easier in the Subway. Retrieved from Railway Age: https://www.railwayage.com/passenger/ttc-uoft-study-torontonians-breathe-easier-in-the-subway/?RAchannel=passenger
Published on August 5, 2021