this post was submitted on 31 May 2025
1080 points (97.6% liked)

Fuck Cars

11813 readers
837 users here now

A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!

Rules

1. Be CivilYou may not agree on ideas, but please do not be needlessly rude or insulting to other people in this community.

2. No hate speechDon't discriminate or disparage people on the basis of sex, gender, race, ethnicity, nationality, religion, or sexuality.

3. Don't harass peopleDon't follow people you disagree with into multiple threads or into PMs to insult, disparage, or otherwise attack them. And certainly don't doxx any non-public figures.

4. Stay on topicThis community is about cars, their externalities in society, car-dependency, and solutions to these.

5. No repostsDo not repost content that has already been posted in this community.

Moderator discretion will be used to judge reports with regard to the above rules.

Posting Guidelines

In the absence of a flair system on lemmy yet, let’s try to make it easier to scan through posts by type in here by using tags:

Recommended communities:

founded 2 years ago
MODERATORS
 

Definitely has his grip on reality, this one

you are viewing a single comment's thread
view the rest of the comments
[–] squaresinger@lemmy.world 39 points 5 days ago (19 children)

Fun fact: The faster a car travels, the bigger the spacing between the cars gets. That's necessary to leave enough distance for emergency stops.

While the speed increases linearly, the spacing increases with the square, meaning at double the speed, the spacing quadruples, which in turn means that throughput (number of cars per hour) halves.

This is the reason why many regions use electronic speed signs to drop the speedlimit lower when there's congestion. Because it increases throughput and thus reduces travel times.

The optimum speed for high throughput is 30km/h.

Counterintuitive as it might be, drivers should be all for 30km/h speed limit in cities, because it would make them get to work faster.

[–] Bababasti@feddit.org 16 points 5 days ago

You can cite an infinite amount of proven facts and studies, car brains will never accept your „communist propaganda“. This whole discussion is too emotionally loaded to be based on facts.

load more comments (18 replies)