Review Of The Article 'Why New York Subway Lines Are Missing Countdown Clocks'

In James Somers article “Why New York Subway Lines Are Missing Countdown Clocks” (2015), Somers looks at the old New York subway system and compares it to the newly efficient and safe subway system called communications-based train control, or CBTC. First, Somers mentions that in the old New York subway system the tracks are separated into sections which display an occupied or vacant track. In contrast, he states that each train supported by the CBTC system is carrying a radio and onboard controller that determines its precise location which is later used to decide how fast it can safely travel. Second, Somers mentions that the CBTC system allows for trains to run in multiple directions. In contrast, he states that the old subway system allows