alt Hacker News> but I guess more pollution added up to the surrounding borroughs in addition to more traffic
Why? Fewer cars into Manhattan means fewer cars through the boroughs. And even if they all diverted, you’re still looking at less idling and less stop and start braking.
Not necessarily. I use my brake far more in stop and start traffic on the highway than I do in Manhattan.
In the city stop and start is primarily determined by traffic lights, which are predictable, rather than the traffic itself.