This is backwards. Vehicles maintaining more space
decreases congestion, not increasing it.
Stop Tailgating, It Only Makes Traffic Jams Worse
“Our work shows that, if drivers all keep an equal distance between the cars on either side of them, such ‘perturbations’ would disappear as they travel down a line of traffic, rather than amplify to create a traffic jam,” says Horn.
Of course, asking drivers to pay attention to their bilateral control is easier said than done. Instead, the researchers suggest that auto manufacturers add rear-facing sensors to cars and update their adaptive cruise control software. According to
the study,
if only a small percentage of cars used this feature it could dramatically reduce traffic jams.
I do this manually all the time. Lots of good drivers do it, to greater or lesser extents. We smooth out the noisy flow. Lately I'm too old and lazy to do it, but when the freeways are not insane, I try to do it. In fact, most of the best commuters on Highway 17 (the hilly part) are themselves quite good at it, whether the few % who actively or passively smooth it or the other % that just go with the flow sufficiently enough to not desmooth it, and I think most commuters are good at smoothing out traffic. There are some really insanely slippery busy rainy crazy days with heavy traffic that I've commuted home on 17 and there were NO SLOWDOWNS and LOTS OF TRAFFIC. Traveling with fellow commuters is definitely a treat worthy of a great smile. Note, as KarenRei quoted, it only takes a small percent of cars smoothing the flow plus a greater percent (nearly the rest of the cars) going with the flow of traffic to make this work.
By the way, another thing I do when driving is teach other drivers how to drive. There are lots of ways to do that. Every time I enter a new commute time slot I haven't been in for years (or ever), I have to teach the fresh drivers all over again. After some months of driving in that time slot (by example and other techniques), everyone in that time slot is really good (or at least good enough, as part of a whole system) at driving. Then, I get complacent and forget that I taught them, get in another timeslot one day without thinking about it, and suddenly I get confounded why no one is driving right, until I remember the massive labor I put into teaching everyone in my usual timeslot.
Add this to my description of how to drive in Manhattan, and I have to wonder if Elon has the manifest destiny thinking style capability to have a computer do this sort of thing.
The biggest commute problems we're having in the Bay Area and surrounding areas right now is we have Activists driving their cars in the fast lane slower than the car in front of them on purpose just to slow down traffic. I have no idea who had them go there, and why they keep doing it, but they're exactly the type of people you would expect to see in a La Raza protest against deportations. While I wish there was something I could do to teach them, the fact that they madly honk at me whenever I overcome their oppression by passing them on the right indicates to me that they are not teachable, but are being intentionally evil. There's literally nothing a car could do to fix that problem.