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The Transportation and Mass Transit Megathread


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On 5/20/2019 at 3:22 PM, markhollin said:

WeGo proposes ending downtown's free bus loop amid $8.7 million budget shortfall:

https://www.bizjournals.com/nashville/news/2019/05/20/wego-proposes-nixing-downtowns-free-bus-loop-amid.html?ana=twt

Good thing we just generated $10m from the draft so that should clear this up, right?

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I am sure they spent the money before it was even counted on studies for the East Bank, etc. IMO, all studies and non essential spending should be eliminated when there is a budget shortfall. Every penny counts and when you start spending a million here and then a million there it adds up to a lot of money.

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13 hours ago, nativenashville said:

What is everyone's thoughts on driverless cars? Will business models such as Tesla's autonomous ride sharing fleets, and obvious upcoming competition drive the prices down for point to point transport that it impacts the needs for alternative modes of transport?

I think they are so far off that it's crazy that current politicians think they will solve traffic problems now.

If people think scooters not being policed are a problem, who gets in trouble when a billion different road situations happen. What happens when a carful of people hit's someone, then the date shows that the passenger grabbed the wheel at the last second when the car was trying to avoid someone. What happens when it makes the decision to kill 2 people on the street instead of a group of 4. ETC ETC ETC.

There are way more problems still needing to be solved with autonomous cars than the builders would like you to believe. And problems that can't be fixed by software, like moral quandaries about what to do in emergencies and everyday situations.

http://moralmachine.mit.edu

Here are some good examples. 

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3 hours ago, PaulChinetti said:

I think they are so far off that it's crazy that current politicians think they will solve traffic problems now.

If people think scooters not being policed are a problem, who gets in trouble when a billion different road situations happen. What happens when a carful of people hit's someone, then the date shows that the passenger grabbed the wheel at the last second when the car was trying to avoid someone. What happens when it makes the decision to kill 2 people on the street instead of a group of 4. ETC ETC ETC.

There are way more problems still needing to be solved with autonomous cars than the builders would like you to believe. And problems that can't be fixed by software, like moral quandaries about what to do in emergencies and everyday situations.

http://moralmachine.mit.edu

Here are some good examples. 

I would argue that the tech will be deployed fast, aggressively, and without regard to a black hole of moral pontification. For better or for worse. 

As you said, the scooters are a fantastic example how decentralized systems can explode in a city overnight and never be the same from. The cars (Tesla's currently, other manufacturers racing to follow suite) are already on our streets, just waiting for the flick of an OTA update.

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I wonder how the systems will work. Will there be a parking lot by the airport where the cars charge all night, say by the airport. You call for a ride in the morning and the car drives around depositing people until it has to go charge again. That would be a great way to get rid of parking spaces in the city.

Then a company could buy a plot of land builds a 20 story car-vana like vending machine and just deploys cars in the city as they are called. Have their offices/mechanics/services built into the floors above the car machine. That would be an interesting strategy. 

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Won’t the Tesla “fleet” cars just be privately owned (they would dock at homes when not in use)?  Or is Tesla also going to throw thousands of cars into their own driverless ride-sharing biz?  If they do that, then I would imagine they’ll have to build docking stations all over each city they operate in...right?

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Driverless cars are already operating in carefully restricted areas, areas with clearly defined streets and year-round good weather. Most of the time they do still have safety drivers in the car.  Everybody knows about Waymo in Phoenix, but there's also Voyage in Florida, Optimus in Boston, Drive.ai in Texas, etc. etc. Here's a good writeup on the different strategies being pursued. They're going to spend the next 10 years removing the safety drivers and the next 50 slowly expanding the territory and weather conditions.

What's interesting to me is that it's going to be viable a lot sooner to use this technology for a transit-style system than it is for an anywhere-to-anywhere personal vehicle replacement. The tech is a LOT simpler and safer at low speeds, and with a local operation center watching over it. It's easy to imagine a smart city setting up a 5 mile loop on well-maintained and marked streets with a max speed of 25 mph and only right turns. Since there are no drivers it will be economical to run small shuttles, spaced every few minutes circulating around this loop. Add a couple more interlocking loops and you have a transit system that could move a significant number of people around, with labor and fuel costs (assuming they're electric) an order of magnitude or two lower than current systems.

The question is, how will municipalities interact with the tech companies that are building these. The business model for transit is very different than ride-hailing, much less personal car ownership. Prediction: Europe will do this right and we'll do it wrong. Their cities will get even better while we find new ways to choke on cars.

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The Tesla model is private owners release their cars into the wild while at home or work and have the car make money for them. Tesla takes a % of the revenue from the vehicle. The charging snake prototypes they showed are to allow Tesla to operate their own fleets in cities in parellel, and be fully autonomous, driving, doing trips, plugging in, charging, all with zero human intervention a majority of the time.

I impress again that they will release stuff before certain laws are caught up, or tech is perfect. It's the nature of the beast.

2 minutes ago, AronG said:

What's interesting to me is that it's going to be viable a lot sooner to use this technology for a transit-style system than it is for an anywhere-to-anywhere personal vehicle replacement. The tech is a LOT simpler and safer at low speeds, and with a local operation center watching over it. It's easy to imagine a smart city setting up a 5 mile loop on well-maintained and marked streets with a max speed of 25 mph and only right turns. Since there are no drivers it will be economical to run small shuttles, spaced every few minutes circulating around this loop. Add a couple more interlocking loops and you have a transit system that could move a significant number of people around, with labor and fuel costs (assuming they're electric) an order of magnitude or two lower than current systems.

THIS. For all the push for 10, 15, 20 + year long construction for rail and other projects, they seem to be ignorant to the reality of the broad variety of autonomous based systems being able to scale and deploy for pennies on the dollar comparatively.

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13 minutes ago, nativenashville said:

I would argue that the tech will be deployed fast, aggressively, and without regard to a black hole of moral pontification. For better or for worse. 

As you said, the scooters are a fantastic example how decentralized systems can explode in a city overnight and never be the same from. The cars (Tesla's currently, other manufacturers racing to follow suite) are already on our streets, just waiting for the flick of an OTA update.

Also, most of the moral problems on city streets can be significantly mitigated by dropping speed limits. Unlike human drivers, you can presumably make it illegal to put a self driving car on the road that is capable of exceeding the speed limit. Drop speed limits to 20-25 in residential areas/commercial districts and the chance that the car cannot stop for any hazard goes down significantly.  And they have to be better than human beings at driving. Not five minutes ago, I saw someone driving the wrong way down a three lane one-way street. Multiple people tried to flag him down along the road, but he was starting straight down at his phone, completely oblivious. 

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1 hour ago, AronG said:

Driverless cars are already operating in carefully restricted areas, areas with clearly defined streets and year-round good weather. Most of the time they do still have safety drivers in the car.  Everybody knows about Waymo in Phoenix, but there's also Voyage in Florida, Optimus in Boston, Drive.ai in Texas, etc. etc. Here's a good writeup on the different strategies being pursued. They're going to spend the next 10 years removing the safety drivers and the next 50 slowly expanding the territory and weather conditions.

What's interesting to me is that it's going to be viable a lot sooner to use this technology for a transit-style system than it is for an anywhere-to-anywhere personal vehicle replacement. The tech is a LOT simpler and safer at low speeds, and with a local operation center watching over it. It's easy to imagine a smart city setting up a 5 mile loop on well-maintained and marked streets with a max speed of 25 mph and only right turns. Since there are no drivers it will be economical to run small shuttles, spaced every few minutes circulating around this loop. Add a couple more interlocking loops and you have a transit system that could move a significant number of people around, with labor and fuel costs (assuming they're electric) an order of magnitude or two lower than current systems.

They are operating in those areas because of the weather and other carefully chosen criteria. But even in Phoenix, with a safety driver, in perfect weather at night on a lite street, there was still a pedestrian that was killed. The car saw the pedestrian didn't know what to do, so did nothing, then decided to brake way too late and didn't get the safety driver enough time to react. 

So basically how this conversation all started by the guy turning into traffic on a scooter from the sidewalk. Would the car been able to recognize that fast enough, if it was set to 25 mph, he might have had a chance, I didn't see how fast the car was going.  

I always say a lot of these problems could be solved by urban planning pushing our city to more pedestrian friendly rather than car friendly. Demonbreun one-way each way,  with bike lanes and wider sidewalks, close Broadway to cars on the weekend, one lane each way during the week with wider sidewalks and bike lanes. Pie in the sky Paul, pie in the sky.

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6 hours ago, grilled_cheese said:

Good thing we just generated $10m from the draft so that should clear this up, right?

Not really.     WeGo's budget comes out of Metro's general fund, so the $8.7m shortfall would have to be made up from the general fund.     The vast majority of the tax revenues collected from the NFL Draft were generated in the downtown Tourist Development Zone and those revenues go to the convention center (MCC debt retirement), not the general fund.      

John Cooper (running for mayor) corrected Mayor Briley's misstatements about the use of the NFL Draft tax revenues in a recent tweet.  

 

cooper.jpg

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https://www.theverge.com/2019/5/23/18637358/cruise-gm-self-driving-unprotected-left-turn

Relevant video. 1400 times in 24 hours, doesn't really seem like that many, unless that was the same car I suppose.

Interesting, I wonder if there was a driver in the seat, and what if any amount of times they ever had to take over. 

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