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Comment Re:hahaha no. (Score 1) 54

Cars can function if you have shitloads of road, there's no reason why car-sized vehicles can't work if you make the track a lot cheaper. The Vegas loop doesn't work because it uses shitty cars on tires on roads in tunnels. Morgantown PRT has too-expensive track requirements that you can't conveniently mix with other forms of transport.

Cars don't work because you need shitloads of road if you want them to work in the city. They don't scale. This same problem is why PRT and the loop fail. You need roughly human size vehicles for individual humans, or enough room for everyone. Car size vehicles are farm equipment for rural life.

Comment Re:hahaha no. (Score 1) 54

PRT doesn't scale up. Even the Morgantown PRT as more or less permanently switched to traditional circulation because demand service doesn't keep up. Also why the Vegas Loop doesn't work. Also why freeways don't work in cities. You either need to make the vehicles as close to individual size as possible, or make them as high capacity and predictably scheduled as possible, but trying to split the difference just gets you long headways and traffic jams. Also why low-stress bicycle routes clear more people than car lanes faster.

Comment The problem is the right of way (Score 4, Interesting) 50

It's too curvy with bridges too old and outdated to handle high speed traffic for the most part. Just fixing the bridges would fix most of this, as you can't really overcome the turn issues, but there's still plenty of straightaways. The old trains could go about twice as fast as they were ever run on the NEC because of the same problem.

Comment Drank the Flavor Aid (Score 1) 54

Allowing us to drive much longer. Once self-driving cars are common and assuming our wider civilization doesn't collapse for a laundry list of reasons then insurance companies are going to make it prohibitively expensive for you to be able to take your car off self-driving mode. A self-driving car will follow every rule to the letter and it will refuse to speed. I do wonder if you will see higher speed limits though. Most speed limits are set intentionally low with the understanding that everyone is going to go 10 mph over. Hell I had to do a long drive today and it been a while since I did a really long one so I was driving slower than usual to be careful but found I was still 10 over while people were passing me on the freeway

Allowing us to drive much longer. Once self-driving cars are common and assuming our wider civilization doesn't collapse for a laundry list of reasons then insurance companies are going to make it prohibitively expensive for you to be able to take your car off self-driving mode.

You'd have a point if this were a fantasy world, but in the real world, if you can't drive as well as glorified cruise control, you shouldn't have a license in the first place. These glorified cruise controls drive about as well as a teenager with a learners permit and ADHD at best. On a good day. And now that tech companies and car companies are all in on generative AI, you're seeing the peak capabilities, it's all downhill from here until gullible people (you included in this case) come back to their senses and realize that we don't live in Who Framed Roger Rabbit or an Asimov novel.

A self-driving car will follow every rule to the letter and it will refuse to speed.

Assuming it even knows what the speed limit is or what jurisdiction you're in. This is sometimes not as obvious as it seems. When you're in Oklahoma, for example, all 77 counties and every city and county can set it's own speed limits as long as they're not more lax than the jurisdiction above it. And if you're on tribal territory, then the tribes overrule state by national treaties with these sovereign nations. Oklahoma counties and towns also don't tend to sign speed limits outside of town, you're just supposed to know the law where you're driving in advance. I can make an educated guess but I also went to school for civil engineering and transportation planning, spent a couple years as a licensed highway traffic controller and have been trying to work this out for OpenStreetMap statewide for 15 years now.

I do wonder if you will see higher speed limits though. Most speed limits are set intentionally low with the understanding that everyone is going to go 10 mph over.

What? No. Most speed limits in the US above 60-65 MPH exceed what was intended for the road and are that high thanks to legislative interference overriding best engineering practices, which would include taking prevailing weather and terrain conditions, road design, sightlines, odds of sudden obstacle (animal, rocks, lost cargo, pedestrians, farm equipment, whatever, abruptly entering the roadway), how sturdy the infrastructure is and prevailing driver aptitude (in the US, this is universally low outside of commercial driving, but the OTR folks manage to show even among the pros, it's lower than it should be). Most paved roads were built in the mid-20th century around traffic that didn't move faster than 65 (70 in a few flyover places), with those speeds originally set by the long-debunked (but still used in backwards states) 85th Percentile Rule, where the speed of the 15th fastest car out of 100 rounded to the nearsest 5 MPH sets the speed limit. Oregon allows ambulances (but not police or fire equipment, oddly enough) to exceed the posted speed limits, but only by 10 MPH with lights and sirens on (not that this ever gets enforced), because ambulance drivers get specialized training to drive faster. When the Republican Party interfered by forcing a speed limit increase through, high traffic roads saw a significant increase in road construction (the roads wear out faster) and casualties.

Hell I had to do a long drive today and it been a while since I did a really long one so I was driving slower than usual to be careful but found I was still 10 over while people were passing me on the freeway

Poorly trained drivers never required to maintain their skills turn out to be bad judges of appropriate speed. This is also why the 85th Percentile Rule broke itself over time.

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