Traffic Engineering: a help from Italy (lemmy.world)

submitted 9 months ago by vanveen@lemmy.world to c/asklemmy@lemmy.world

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Good morning, I write from Italy and here, where I live, but it is not only here the problem, are launched public roads projects that are breathtakingly bad and obsolete. I am no expert, I just think to have a minimum of good sense to understand that projects that are raping the countryside to build streets and welcome the circulations of more cars, more pollution and that conceive human beings like automatons that are staring the tv, then the windshield and then again the monitor at work. Imagining human life this way, in 2023, is a bit of a nightmare. Thus I would like to educate myself on traffic egineering. Is there someone out there that can point me YT channels; podcasts or worth to read books about this subject? At least, when there will be a public meeting, a city hall pubblic assembly I can think of intervening and say that there's something better that just open roads after roads, after roads. Thank you

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[-] Varyk@sh.itjust.works 1 points 9 months ago* (last edited 9 months ago)

Adding more lanes does not "magically create more cars on the road", but it does mundanely create more traffic, so that increasing traffic lanes provides diminishing returns of reduced congestion.

You have to factor in how many cars are acquired every year, how many people are driving, how they are driving where, and when.

Every year people are buying new cars and the old cars don't just disappear, more people move to where more people already live, and adding new lanes only invites more drivers to where everybody is already going.

A simple, related and more accessible example is adding parking spaces into a downtown area. This does not lessen congestion but increases congestion as more people drive downtown and everyone drives around looking for a parking space rather than walking an extra 7 minutes from a less congested area.

A similar thing happens with highways, and research backs it up.

https://www.bloomberg.com/news/features/2021-09-28/why-widening-highways-doesn-t-bring-traffic-relief

https://smv.org/learn/blog/how-does-roadway-expansion-cause-more-traffic/

Improve mass transit and public transportation and this problem evaporates.

this post was submitted on 20 Jan 2024

23 points (96.0% liked)

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