Originally posted by PDL So the autonomous vehicle will pick me up and take me home according to my hours.
What does the vehicle do when it drops me off? All of my neighbors are home too and do not need to use a vehicle.
Does the vehicle head back to the city - empty? Does it go back to the shop to be refueled (a car can not be in use 24 hours a day since it needs to get fuel and if it is electric it takes a while to charge) and maintained? Or does it follow the jogger down the road waiting for the jogger to climb in?
Well, some of your neighbors do need a car at night. Some are going out for a night on the town. Some work the night shift. Some need to do some shopping. Some are going to their child's school play or baseball game. Some or going over to a friends house for dinner.
But you are quite right that the intensity of car use does drop at night. That makes night a great time for refueling/recharging, cleaning, and maintenance. And, yes, many of those autonomous cars will sit parked someplace although the amount of required parking for autonomous cars will be a fraction of the required parking for dumb cars in which every household must have at least one car that requires one parking spot for the entire night.
Cars may well go back to the city empty if the expected demand for cars in the city is high. Overall, autonomous vehicles will mean an increase in vehicle miles travelled but a decrease in the total number of vehicles and a decrease in the required number of parking spots.
Notice that with current dumb cars, every household with a car needs more than TWO parking spaces: one at home for the night, one at work during the day, and some shared fractions of a parking space at various retailers, restaurants, friends houses, stadiums, etc. A suburb of 40,000 people that currently requires 40,000 cars and over 80,000 parking spots might need less than 20,000 cars and less than 10,000 parking spots.
The more people who use autonomous vehicles for door-to-door rides, the more that shopping malls and stadiums can sell off their parking lots to build more retail shops or condos.
Originally posted by PDL So tell us about the autonomous vehicle that uses only brake lights and turn signals to go through the streets. Especially when there are human driven cars on the street that do not use turn signals and only know how to panic stop. The systems in place by Tesla and Uber can't seem to tell when there is something big and not moving ahead of them. (A stretch, granted, but tell the two dead people's families that these things only need brake lights and turn signals
Tesla is not an autonomous vehicle. It is only a driver assistance system. Calling Tesla's system "autopilot" seems like a dangerous fraud to me. Most Tesla crashes are human error due to driver inattention although some would rightly argue that Tesla's driver assistance system is unsafe by design. Uber's system most certainly did see that pedestrian a full 6 seconds before impact but the vehicle was configured to only record that sensor data and not act on it. Uber's crash also happened because the human driver (and possibly Uber management) was negligent.
Technically, autonomous vehicles won't need to rely of brake lights at all. Panic stopping is only a problem for human drivers because the human visual system sucks at judging relative velocity at distance. Radar uses both the Doppler effect to directly measure both relative velocity and the range to the object to instantly see if vehicle in front of them is slowing, braking, or braking hard.
As for turn signals, autonomous vehicle can use them to communicate but they won't assume they are 100% accurate. The funny part is that as the number of autonomous vehicles on the road goes up, human drivers are going to find that they must use turn signals to change lanes. Video of unsignalled lane changes will be uploaded to the police.
Originally posted by PDL AH - no, it is not the buildings not at all. The buildings are not going to move (You don't move factories to make easy driving for robot cars). I worked for a company that did DoD work and I can guarantee you that no one outside of the authorized people and systems talked to anything inside those complexes.
And if you are only going to use break lights and turn signals, how are you going to get information about a wreck, weather related incidents, avalanches, closed roads, road work or local disaster. These autonomous vehicles are going to have to be able to get this information rather than sitting still on the road. If you suggest GPS and wireless communications, then you have contradicted yourself from your earlier statements.
How do human drivers get information about a wreck, weather related incidents, avalanches, closed roads, road work or local disaster? Or do human drivers sit by the side of the road if they can't get that information? Both humans and autonomous vehicles can benefit from mobile communications and GPS but neither requires these technologies to get places.
Originally posted by PDL Seattle is making it very hard for all but the top 1% to have cars in the core downtown area. But not to worry, the working stiffs don't live there since rents are so high and climbing higher that to live downtown is to be rich. The transit system is overcrowded and the trains are running at a capacity that the scoffers said would not be reached until midcentury. Rents are as high or higher than Manhattan and the middle class is being pushed out to the burbs. Uber and Lyft drivers are working more and getting less and less money. It is almost as bad as San Francisco where $117K a year is not quite enough to have a "good" apartment/condominium within the cities boundaries.
Speculators are buying mid 1920 houses, tearing them down and putting up three story leggo structures with a shared kitchen so they don't have to qualify for parking or being labeled an "apartment". Those things are selling out before they are even being completed. So being a place that is expensive is right now not the near future. Many of the streets (infrastructure) downtown are torn up for new construction and the one transit line has been shut down due to cost over runs and is behind schedule. The extension of light rail is going on, but the federal money has dried up since WA did not vote for the correct person and it will be delayed a few more decades or so.
And not an autonomous vehicle in sight.
Sorry for the rant but optimism needs to be tempered by looking out the window now and again.
The rant is well deserved! I go to Boston about once a month where I have clients and friends. And my sister lives in the SF bay area. They rightly rant just like you do about parking, transit, costs, etc. Cities like Seattle, Boston, and SF are a mess which is why you could not pay me enough to live in them.