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Comment by fiftyfifty | Hacker News Reader

Why rails? With some of this self driving tech you could just put sensors in the road and have the vehicles follow pre-determined routes. I've always thought that's where this self driving tech should have first gone in the early stages. Instead of having a large bus come by once every 30 minutes you could have a fleet of small self driving vans coming by every 5 minutes. If you don't have to pay so many drivers that could be cost effective. Something like that could change public transport and would be very accessible to even small cities.

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Transporting people together in a single thing is much more efficient than having a big roomy box for every person.

Agreed, I was thinking the self driving vans or mini-buses would hold maybe 10 people. They wouldn't have to be as big as a full size bus as they would come by more often, making them more convenient for the riders.

I live in a smaller city and we have full size buses that only come by every half an hour, which means if you miss a connection it could take you an hour and a half to travel a distance you could easily drive in 15-20 minutes. If the buses came by more often, more people would ride them, but that would be cost prohibitive if you had to pay all the drivers.

Sometimes I am speechless. You’ve just made public transport less efficient on several axis.

Speechless? Where I live we have full size public buses that are frequently only carrying one or two people. In fact if I had a nickle for every time I've seen a completely empty light rail train in the middle of the day in Denver, I'd be a rich man by now. Public transport in the vast majority of the US is a failure. In Colorado Uber and Lyft probably haul 10-100 times more people every day than ride our public transportation, that's not efficient at all. The main complaint people have is public transportation doesn't run often enough, or provide enough routes, self driving vehicles could fix that and make it economic for US cities. If you had smaller buses (sometimes called vans) you could run them more often and thus make them more appealing to the masses. Is it less efficient, yes, but if it gains more riders that's a net gain IMO.

Why are you comparing your scheme to a defunct system, then? The cities in Europe I’ve lived in, and the cities in Asia I’ve visited, haven’t had that problem at all.

Because there is a market there, actual money to be made, that would be a lot more realistic for companies like Cruise and Waymo to solve than some pie in the sky self driving car. They could have been working towards a public transportation system that doesn't require millions of dollars in capital construction costs to put in place first. But that's not as sexy I guess.

It would be nice and easy just putting some sensors or special paint on the road, the problem is when those automatic vans share the same space than the rest of vehicles, you will have a crash frequently, in barcelona the light rail has crashed with several vehicles even when they don’t share the platform but on the intersections with crossing streets

Agreed, the goal isn't to replace transit in places that are well suited to it, its to provide better transportation in all the places transit isn't well suited.

I think the main complaint about US public transit is that it's dirty and dangerous. If it was super safe and clean in+around all stations and on all trains/buses at all times, people would definitely use it more often.

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