this post was submitted on 04 Jul 2024
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[–] corroded@lemmy.world 3 points 4 months ago (4 children)

I'm not disagreeing necessarily (I know nothing about city planning), but wouldn't a smaller highway just force people onto the side streets and city roads? How does a superhighway make traffic worse?

[–] thomas@lemmy.ca 26 points 4 months ago

Most people will think traffic behave like water that you need to send through a network of pipes. It is not, traffic is made of humans and humans reactions will make traffic behave wildly differently than waters in pipes.

  • Some people and businesses will move next to the new highway for its supposed ease of access, creating traffic
  • some people might change their habits and go shopping to this place instead of that place, or getting a job far away from their home (or a home far away from home)

The exact reasons for the increase in traffic is complex and my example could be totally off. But we don't need to know the exact reason for the increase in traffic, we know it happens because it has been observed on every road enlargement projects in the last decades.

[–] Micromot@lemmy.zip 17 points 4 months ago (1 children)

There are some good videos by notjustbikes on this topic, iirc the main problem is that big streets make people want to drive more which makes everything more crowded

[–] s1ndr0m3@lemmy.world 10 points 4 months ago

Building larger highways always encourages more traffic. For a better explanation, check out this video by Adam Something. His youtube channel has a lot of interesting videos about transportation infrastructure.

[–] match@pawb.social 1 points 4 months ago

If it helps you can imagine the side streets and city roads as unused additional lanes.