It’s a bandaid for a much larger issue. Our trains and tracks should have started a massive and complete overhaul updating the entire system 15 years ago. We won’t see a modern and safe train system in NYC in our generation. Most major cities have much more robust safety measures engineered into the design of the station while we are stuck, sweating our balls off on a dead train, late for work because of a signal failure from a system designed 120 years ago.