I'm talking about midsized cities (100-300k inhabitants) that are really compact thanks to 4-8 levels in every apartment block and ubiquitous use of lifts.
Lifts are the disruptive technology. They make energetically efficient cities possible and cheap.
I also find these cities much more nice to live in. Nice parks, avenues and shopping streets. I guess they are the heirs of the Hellenic tradition of valuing meeting squares a lot.
In contrast, as much as I like other aspects of Anglo-Saxon societies, their terraced or detached house model is energetically unsustainable, and yields both liveless suburbs and downtowns.
Are lifts really as efficient as escalators? An escalator is constantly moving (unless it's malfunctioning), so there is no wait to continue moving. An elevator on the other hand is not. Maybe it depends on the number of floors? I can see an elevator being faster going from ground to floor 40 rather than zig zagging floors from ground to 40. Does anybody use "express" escalators that skip floors allowing for faster transit to higher floors?
I wouldn't be surprised.
> An escalator is constantly moving (unless it's malfunctioning), so there is no wait to continue moving.
That wastes energy but makes it time efficient for users (in terms of latency). OTOH, escalators are slow compared to most lifts/elevators, which means total trip time efficiency isn't good unless you are only going a floor or two or are competing with an elevator that stops a lot, where the latency gain may still beat the loss of vertical speed. Which is why escalators tend to get used where you've got lots of traffic volume but they aren't going up/down lots of floors.
So on-demand escalators are possible, just rare.
In the daytime either they kept them on all the time, or maybe there was enough constant demand to keep them running as I never saw one powered off during the day.
But I can't say I've put a lot of thought into it.
There are maybe a few hundred on-demand escalators in the whole world, and millions of normal ones.
You open up a lot of free space if you can take away street parking, which could also significantly alleviate traffic, for example with dedicated lanes for small-personal battery powered bikes, scooters, etc.
It’s also not necessary for vehicles to travel several miles to find parking. Typical urban parking is designed so the average person is walking maybe a couple hundred feet maximum? That’s a lot of localized parking. If the car was traveling just a few thousand feet on average to find a lot, that’s not a lot of extra parking-miles traveled, but still a paradigm shift in parking process.
Also, you eliminate the issue of people circling the block trying to find parking, which is adding slow traffic in dense areas.
Finally, it’s likely the vehicle is not going to park, but rather off to pick up its next ride.
At the most optimized, there are pickup and drop off points at every block where someone gets out, and immediately someone else gets in, and off the vehicle goes to the next stop.
Yeah, a managed fleet system could have very different congestion characteristics, but the proposal was specifically that self-parking might be a game changer on its own. At that point it's basically valet parking, and you still have to stash the cars somewhere, and they still have to go back and forth between that somewhere and wherever the passengers got out.
You get rid of the circling but I don't think you get rid of queuing and grid backups.
Drive up to the building, which has space for just one car in the "lobby".
Get out of the car, enter data into the console. Your car then enters the building and is stored by a robotic system.
Later, do the same in reverse.
Typical urban parking outside of car-centric US cities is "your car takes up as much space as your apartment/hotel room/office cubicle, where the hell do we have space to put it?" For someplace as crammed as Manhattan, the parking isn't "around the block", it's on the other side of the traffic choke points.
> Finally, it’s likely the vehicle is not going to park, but rather off to pick up its next ride.
I don't buy that. Traffic patterns in large cities end up showing a distinct bimodal pattern: there is a large influx of people into the central business district in the morning, and then a large outflux of people in the afternoon. If I'm commuting by self-driving car, and I get in at 8:45-ish, there's going to be no demand for my car since everyone who needs to be in work by 9:00 is on the way.
You can see this in systems that are already optimized to move people en masse to/from cities: commuter rail and bus systems. Large city railroad stations often have rail yards for train storage near their downtown hubs simply to store the trains during the day.
Just wait until you start in on the total mess that is school drop-off when every parent decides they have to drive their kid to school. Much faster to breeze past the stopped traffic on a bicycle, unstrap the kids and send them on their way, and bike to the train.
Snow and ice: not as big a problem as you think. Cities and towns can plow and salt bike paths even easier than they do streets. You can also put studded tires on bicycles if you're in a particularly snowy area. See Oulu, Finland or Winnipeg, Canada for cities with plenty of winter cyclists: https://www.theguardian.com/cities/2016/feb/12/ice-cycles-no...
I do try not to take superfluous trips on my e-bike above maybe 95 though.
Yeah sub -18C is extremely cold. Definitely not cycling out there. I don't think I've ever seen below 0 Fahrenheit where I live.
(i) keep appropriate clothes at the office;
(ii) wear suitable cycling gear (as the Dutch say, there's no such thing as unsuitable weather, only unsuitable clothing);
(iii) find a way to shower at work;
(iv) be good humored when weather or other mishaps occur...
Which one of you is right?
Seeing as my version is a rhyme, it's obviously the superior one.
Really, though, if we consider bikes safe enough for transportation, why can't we have ultralight enclosed EVs?
* https://www.londoncyclist.co.uk/how-to-carry-a-suit-on-your-...
Assuming your car takes up 12sqm * 2m I assume you'd find plenty of space to store some panties replacing your wet ones ;)
And speaking of burns, I burn really easily. I've tried the super-oily disgusting stuff and every thing; more than 30mins of direct noon-day sun and I usually burn. I am not getting skin cancer, thank you very much.
(i) This part is very defensible, depending on company culture.
(ii) I don't know what this would be for cold, but I assume you can layer. Heat, you can only remove so much.
(iii) "Find a way" is not a great defense.
(iv) Easier said than done, and similar to iii in that they both boil down to an over-all sentiment of "deal with it".
Showering at work isn't necessary either: sweat is odourless, and the stickiness comes from bacteria. So you can actually shower before cycling to get things clean and you'll be fine the whole day.
In some ways we're actually ourselves too much:
* https://www.penguinrandomhouse.com/books/550291/beyond-soap-...
2. After cooling down a little, change out of potentially stinky commuting clothes into your work clothes.
This seems to work for me, and given the characters I work with, they'd let me know if there was a problem without any qualms.
* https://www.iamexpat.nl/lifestyle/lifestyle-news/biking-safe...
* https://bicycledutch.wordpress.com/2014/09/04/cycling-in-the...
In Toronto I cycle from April to December, rain or shine. I know folks that also do it January to March, but I can't be bothered to buy the extra insulation layers so I take transit.
I have two panniers: one for my lunch and the other for my rain gear:
Also, how would something like this work with little kids?
Plenty of bike options for little kids. Seats, trailers, box bikes, etc. etc.
On a bike trail there are no such obstacles: just push the snow to the side.
Do towns exist with public transportation but no roads?
If you own and live in a place long term then you can slowly bring materials to it, build up furniture, etc, it all works and makes sense.
But really this all seems to be based on hyper-specialism. The moving company is the only one allowed to use the roads. You've no space for tools or materials, so no DIY, get the joiners in. And so on and so forth.
Personally I find that really depressing. You may as well just plug yourself into the wall and turn on VR.
Higher density minimizes the need for cars.
https://www.google.de/maps/@52.4463121,13.309308,3a,75y,244....
This is a road in central Tokyo
https://www.google.de/maps/@35.705447,139.7784828,3a,75y,260...
This is a random road in San Mateo
https://www.google.de/maps/@37.5600243,-122.3067183,3a,75y,3...
You need roads, but you don't need roads that as wide as those in American urban sprawl
Off topic, what's going on in the Berlin example? The whole left side of the photo looks like it's been redacted, are the homeowners requesting their houses be removed?
And those unfortunate souls will have to buy cars, but the roads will be much less congested now that most are on bike paths. A single free lane is faster than three packed ones.
Yes, pretty much everyone can ride bikes. Or scooters. Or velomobiles. Or hang gliders. There is some human-powered vehicle out there for everyone.
We just have to get out of this local maxima based around driving oil-burning SUVs.
I'd rather drive an air-conditioned car, sit in traffic for that hour or two, and enjoy my private backyard (however small it may be).
Except those car-centric environments you live and work in are a more effective gate to keep the poor out than the grandest gated community. Almost no where else on the planet is the idea of a city being a tiny urban core surrounded by hundreds of miles of single family houses in spiraling one lane streets of sprawl the norm. Its a purely American fixation on centering all human activity around cars. And for your benefit, even - the world would be alight in a raging inferno if we ever tried to globally house everyone in quarter acre single family houses with 4 hour single-occupancy car commutes every day.
I don't, actually - it's that a car is far more useful than a bike. I drive 25 minutes to work; I haul (5 bike-ride-loads of) groceries several miles to my house; I visit friends anywhere from 1-5 hours away; I casually drive into the city and back. Even if I felt like riding 10 miles each way, rain or shine, or using public transit, it takes so much less time to drive my car, and I have to either find multiple clever solutions to each of the other activities I use the car for, or just go without.
My car gives me freedom from limitations; bicycle dependency only adds to them. To use a bike instead of a car, I have to fundamentally adjust my life, in every way for the worse.
Example: do you realize how preposterous the idea of driving several miles to get groceries is to someone who lives in a real city? If I want to get groceries I walk to the grocery store two blocks away. If I don’t like that grocery store I walk to the other one four blocks away. Or the other other one five blocks away. It takes me less time to walk to the grocery store than it takes you to drive to yours. The counterfactual to a 10 mile drive is not a 10 mile public transit ride, because without car-induced sprawl everything would be much closer and you would have to travel much shorter distances to have access to the same amenities and see your friends.
Public transit is also not slower than driving in a city with proper transit. I don’t own a car and almost every single journey I take is either short enough to walk, or faster on transit than in a car. It takes me 10 minutes to get to work on the train, the same drive would take half an hour due to traffic.
For actual numbers, my commute is 20min by car, 2.5hr by public transportation, or 1.2hr by bike. Public transportation would need to be no more than 40min for me to consider it, and I’d only consider it because I wouldn’t have to drive. Once self driving cars arrive, I’d never consider public transit, even if driving were twice as long.
I don't live in a city, just like half the population of the US. You assumed that, and now the rest of what you wrote is irrelevant.
Also, density is what enables greenery. Endless rows of detached single story houses with a lawn is what kills natural landscapes.
Sure:
* https://www.google.com/maps/place/205+Roncesvalles+Ave,+Toro...
* https://en.wikipedia.org/wiki/Roncesvalles,_Toronto
There are already neighbourhoods and cities like this. Do you know how many vegetable/fruits stands there are on the above street? Plus a couple of delis, a fish market, dry cleaners, four banks, a library, a BBQ joint, a couple of pizza parlors, pharmacies, dentists, optometrist, etc. The tram / street car tracks you see connect to a subway station.
Plus everyone on the residential side streets have a backyard, many have garages connected to lane way:
* https://www.google.com/maps/place/50+Westminster+Ave,+Toront...
This is how we used to build cities.
Cars are present but optional. If you want one you can still have it, but they're are not needed.
Amsterdam is a perfect example of this: cars have not been completely eliminated, just de-emphasized. Making cars a nice to have instead of a need to have.
The car is the currently most convenient way of enabling the detached home, but I think you'd have an easier fight of providing transportation alternativers there than of convincing everyone to give up the yard and privacy and everything else there.
It's not the only possible way, and most vehicle trips are still relatively short (https://nhts.ornl.gov/vehicle-trips) so I sure hope we can do it with last mile + transit vs self-driving cars.
This is a misconception I see all the time. Living in a city, and even in an apartment, does not preclude having a private backyard. The choices are simply not just "detached house" or "skyscraper".
I live in an apartment, don't own a car, yet I have a private backyard large enough to grow trees or build a decent DIY shop.
* https://www.google.com/maps/place/50+Westminster+Ave,+Toront...
These houses are a bit pricey now, but that's because urban living has become fashionable again. From the 1950s to 1990s prices were a lot cheaper because all of the demand was for white picket fences in the suburbs.
You can reasonable build reasonable density, where public transit is possible, without going to Manhattan- or Tokyo-like densities. Perhaps put some mid-rise (5-10 stories) buildings on the main arteries, but the side streets can be quite smaller-scale.
Public transit is cost effective for urban cores and commuter rail routes to those urban cores, but everywhere else it's simply not economical.
Is that satisfactory?
"That’s what Philadelphia discovered when it decided to expand its existing fleet of e-buses with newer models—ones that featured bigger batteries. The city failed to recognize in the early planning process that it would be prohibitively expensive to acquire land in its busy downtown area for charging stations along the bus routes. So they decided to install all the charging infrastructure in the bus depots."
https://www.abettercity.org/docs/Alternative%20Propulsion%20...
However, even pure diesel buses are much more efficient at moving people than single-occupancy vehicles.
It's also worthwhile to note that a real plan for reducing greenhouse gas emissions would necessarily include substantial capital outlays: not just bus charging infrastructure but grade-separated rail, dedicated busways, bus rapid transit, cycle and scooter infrastructure, etc. etc. Not to mention all the other climate adaptions that need to happen at an infrastructure level.
(and then there's what elon musk says -- all lease return model 3's will be added to the tesla automonous taxi network)
If our objective is to significantly reduce carbon emissions from people moving from point 'A' to point 'B', fully electric vehicles are a red herring solution. It's more realistic and cheaper to focus on plug-in hybrids. That way you can achieve 90% reduction in greenhouse gas emissions from driving 4-wheeled vehicles without requiring new infrastructure or requiring people to drastically change their habits.
https://cleantechnica.com/2019/06/14/reducing-carbon-emissio...
The old incandescent street and traffic lights were frequently hundreds of watts, on long chains over large distances.
This can be repurposed to car charging with little in the way of power delivery redesign.
Issue number two: other people. Public transportation is not as nice as a car because you are not insulated from others. I can run my AC nice and high and listen to a pod cast in peace and quiet in my car, even if I've got to deal with jostling cars on the outside. In a train/bus/etc, you never know what you'll get. Half the time there's some one with music blasting, or cussing loudly. The other half they guy next to me smells awful or takes two seats because he's a land whale. If by some miracle neither of those things is true, all the seats are taken. Public transportation sucks,
I like my car, and see no personal reason to switch to a less-comfortable and less-available form of transportation for the sake of some one else's political win.
It doesn't necessarily lead to an efficient workforce.
The hour of commute time saved by driving could probably be translated into percentage points of GNP for a country.
You can reap the environmental benefits of switching mostly away from cars without sacrificing your freedom to drive to the small number of destinations that are not convenient to get to by other means.