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Changes since congestion pricing started in New York

(www.nytimes.com)
437 points Vinnl | 5 comments | 13 May 25 10:43 UTC | HN request time: 0s | source
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stuaxo ◴[15 May 25 07:21 UTC] No.43992625[source]▶
Hi from London:

The centre is much more pleasant to walk in, as are most places in the zone.

Pollution is much, much better: if you came to London and travelled on the underground you would have black snot when you blew your nose, this hasn't been the case for a few years now.

I hope NY gets the sake improvements.

replies(2): >>43992641 #>>43993206 #
walthamstow ◴[15 May 25 07:23 UTC] No.43992641[source]▶
London has changed for the better for sure but black snot on the tube hasn't changed at all. I get it from 20 minutes on any deep line like the Victoria. It's from train brake dust, nothing to do with vehicle emissions.
replies(2): >>43992651 #>>43992736 #
1. lazide ◴[15 May 25 07:25 UTC] No.43992651[source]▶
The Tube has a real ventilation issue - not just the brake dust, but also temps and staleness. Some of those lines, it’s like a 24/7 sauna!
replies(2): >>43992661 #>>43993189 #
2. walthamstow ◴[15 May 25 07:26 UTC] No.43992661[source]▶
I think I read that the warmth from people and braking has baked some of the clay earth around the tunnels, making them even more insulative!
replies(1): >>43992749 #
3. azath92 ◴[15 May 25 07:45 UTC] No.43992749[source]▶
Because of how old they are there is some really interesting long term data as the earth itself around the tunnels reaches a new thermal equilibrium. In looking for a source, i found a good wikipedia article on tube temp in general.

These comments and the article made me see how much of it is/was due to braking. TIL.

https://en.wikipedia.org/wiki/London_Underground_cooling

replies(1): >>43993154 #
4. ◴[15 May 25 09:04 UTC] No.43993154{3}[source]▶
5. porjo ◴[15 May 25 09:13 UTC] No.43993189[source]▶
Ha, I happened upon an interesting video earlier today on this topic! https://youtu.be/4MzHt_YLnjw