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▲ One of the Greatest Inventions in the History of Human Transport(humantransit.org)
179 points by skadamat 4 days ago | 78 comments
▲goda90 3 hours ago | parent | next [-]

> Had this really not been done before? Apparently not on land. Ferries are an ancient idea, both for crossing water bodies and for traveling along them. They are fixed routes, of course, but that’s mostly because the shore is fixed. Pascal’s idea was that even though carriages could go from anywhere to anywhere on Paris’s street network, a special kind of usefulness would arise if they didn’t do that, but instead followed paths that people could remember and plan around.

While not exactly a transit system, there were fixed trade and courier routes before this where the dependability and consistency induced build up and improvements around the route. There were probably even times and places you could hitch a ride on someone's cart or group up with others for safety because of how well the routes were used.

▲wolfi1 an hour ago | parent [-]

there were already post carriages but they were not inner city

▲nickorlow 3 hours ago | parent | prev | next [-]

> Frequency ranged from 7.5 minutes to 15 minutes, so these came often enough that people could just go out and wait for them, not worrying about a schedule'

If only most cities could have this today

▲ahartmetz 2 hours ago | parent | next [-]

Most European and East Asian major cities do have that. A train every 2-5 minutes during busy hours. In smaller cities (below one million people or so), a train / bus / tram every 10 minutes is probably most common.

▲loloquwowndueo 2 hours ago | parent [-]

Perhaps the poster is in the US where frequent-schedule public transit is a rarity save in a few select cities.

▲SoftTalker 17 minutes ago | parent | next [-]

Yes, my local transit system has 15 minute intervals at best, most routes are 30 or 60 minutes. And if you need to transfer routes, that's normally even more waiting. That really limits its attractiveness and so with a few exceptions it's mostly used by people who can't afford a car and are physically unable to bike.

I've often said that if I ran it I would concentrate resources on more frequent service on the highest ridership routes and cut the low ridership routes entirely. But for a variety of reasons that probably isn't possible, e.g. they are getting funding contingent on serving a wider area, etc.

A transit system should ideally be attractive to people who can afford to drive, but choose not to out of convenience. That's a pretty high bar in most areas.

▲nickorlow 2 hours ago | parent | prev [-]

yes

▲arjie 2 hours ago | parent | prev | next [-]

You need some combination of high-ridership and low-personnel-cost. You can get that in most of Europe and Asia, but incomes in North America are quite high and labour capture is high too. Most jurisdictions cannot afford the drivers necessary at high frequency because there isn’t enough density for it.

Skytrain bypasses this by not having drivers and perhaps as buses become AVs we could add many more of them here in the Bay Area with much higher frequency.

▲throw0101c 2 minutes ago | parent | next [-]

> You need some combination of high-ridership and low-personnel-cost.

Driverless (GoA3) and completely unattended (GoA4) rail operation is possible, which could help with personnel costs:

* https://en.wikipedia.org/wiki/Automatic_train_operation

▲buuyytp 2 hours ago | parent | prev | next [-]

You could do it in most American cities. You would need to remove car infrastructure to do it. Bus Rapid Transit with protected lanes and median platforms along major arterials is a method most American cities could absolutely support. Some cities might be a stretch, Houston's nightmare sprawl for instance. But I'd put money on it being feasible in 70-80% of cities.

▲xp84 38 minutes ago | parent | next [-]

Most American cities are not laid out in a way that a few or even a bunch of BRT routes (or tbh even if we get the money cannon out and make them Light Rail) would solve anything.

Transit works well in dense areas. For the median transit trip, even a city with very shaky and inefficient transit like SF, you might be required to take two vehicles (hopefully one is a train or a limited/express bus) and walk 2-4 blocks at each end. Maybe 30 minutes of riding and 30 minutes total of waiting or walking. Driving might be faster, only 25-35 minutes, but it costs a lot of money or frustration to find parking, and cars themselves are expensive so a lot of people don’t even want to have them. Transit is working.

Transplant this pattern onto a suburb and it breaks. Driving is a 25-minute trip in climate control, there’s plenty of room to park on both ends, and roughly everyone has a vehicle already. Assume a very expensive short-headway BRT or Light Rail network appears overnight. The average person checks their trip and sees that they’ll have to first walk 20 minutes to get to the nearest stop, then wait up to 8 more minutes (we’re being very lavish with our spending to keep headways down to 8), ride for a few minutes, hop off and transfer, waiting up to 8 more minutes, then ride for a few minutes, then walk 20 minutes at the end. These are not the result of a terrible transit system design — they are just inevitable for most people who aren’t incredibly lucky in how their frequent trips match up with the routes. 1-2 story suburban density means that it would be cheaper to just subsidize the cost of an Uber for every trip than it would be to provide headways and bus stop spacing that would make transit a close value proposition to driving a car.

Plus, you will still need to keep your car, because if you live in 80% of the country, it sometimes is a type of weather that you really wouldn’t want to walk 40 minutes in each way. And lugging groceries the distances required is also a massive pain. So your depreciation and insurance cost will remain the same, but you’ll trade gas cost for bus fare. It’s presently about $4 for me in gas to drive my kid to elementary school 12 miles away, but it would cost 3 bus fares (two for me, one for her) to make that trip, so about $9 in typical transit systems.

No one in a democracy will ever choose this. Right now in the Bay Area even one of the best transit systems there is (BART), is finding itself on the brink of insolvency, just from the loss of white-collar commuting brought about by remote work, going from a system that needed a light subsidy to one extremely dependent on government funding.

▲graemep 2 minutes ago | parent [-]

I grew up at the edge of London. Very much low density suburbia.

10 mins walk to railway station, 15 min on train to train to city centre. Faster and easier than driving. Cars were for short trips in the area, luggage, and out of town trips.

Even in a small town my kids used busses quite a bit.

▲coldpie 2 hours ago | parent | prev | next [-]

Excited to say we are doing exactly this up here in the Twin Cities. The local transit agency has been planning a bunch of BRT routes and implementing about one every year or two. Often they have dedicated lanes for much of the route, and they typically have wait times around 7-15 minutes depending on time of day. BRT is extremely affordable and efficient and fits quite nicely into legacy car-based infrastructure, too.

It appears to be quite successful in terms of ridership, too (warning: local news website, but you can get all you need from the URL slug): https://www.fox9.com/news/6-months-in-minneapolis-e-line-nea...

▲gwbas1c 2 hours ago | parent | prev | next [-]

It's a self-reinforcing negative feedback loop: Public transport needs riders to fund / justify it; and people drive because the public transportation sucks.

▲xp84 28 minutes ago | parent | next [-]

People already take transit everywhere it has been economic to build good transit. You’re simply not going to have a good system in any area outside the built-up urban areas, because you would need to hire an army of drivers and buy many thousands of vehicles, at absurd expense, to provide a rider experience that would be even close to acceptable in spread-out areas. Transit works due to many origins and destinations being concentrated in small areas. Blocks full of five story apartment buildings. Stadiums. Airports, ferries, commuter rail termini. Tall office buildings, colleges, hospitals. Applying the same model to cities that aren’t big enough to have professional sports teams, the only kind of transit you can afford to build is buses that run every hour or so, and which require you to walk a mile or two at each end for the privilege of using it.

i’m arguing that this is not a chicken or egg situation because the costs involved to bring that chicken to life (especially when starting today - at least the 19th-century head start NYC got allowed them to build quick and cheap!) would be so high that your farm is going to be bankrupt before anybody lays any eggs.

▲supertrope an hour ago | parent | prev | next [-]

When the Federal, state, and local government direct 97% of transportation infrastructure spending toward making driving easy, we should not be surprised when 97% of people choose to drive their daily trips.

▲LorenPechtel 8 minutes ago | parent | prev [-]

There's a big problem with transit in the suburbs: speed. I'm going to compare the two systems I have some reasonable idea on:

Local. Because of all the stops buses average 25 mph. Long runs, this adds up considerably. It can't be fixed without a lot more buses and a lot fewer stops.

Shanghai. Buses stop much less frequently. More walking, but a bus is not that much slower than a car. And the subway doesn't have traffic jams, long runs you'll almost always get there faster with walking/subway than by car. There is also a climate factor--they get more rain but much fewer extreme days.

▲joe_the_user an hour ago | parent | prev [-]

Bus Rapid Transit is neat but you don't need it to create a reliable public transit system. A smattering of American cities have had reliable and popular public transit system (Portland in the late 90s I recall). The problem is that good transit system get gutted whenever a city runs a deficit and so public transit converges to its stereotype - a slow moving, irregular single line filled with those not having a choice about riding it.

▲joe_the_user 2 hours ago | parent | prev [-]

No you don't.

You need a state or other body committed to fixed routs and seeing their long term benefit. The American ideology that public transit must directly support itself with revenue is what has resulted the miserable transit system that we see today.

Edit: I should add that the ideology of transit supporting itself also corrodes the key idea of fixed, scheduled routs, high-lighted in the article. I know in the US that even if a town I'm happens to currently have a decent public transit system (an occasional though uncommon occurrence) I know it will be crap in a couple years as revenues fluctuate since local transit is a political football, so I'd never count on public by selling my car or other decisions.

▲arjie 2 hours ago | parent | next [-]

It’s not an American idea. It’s a pretty normal concept that public transit is not a charitable program and must yield benefit commensurate with spend. The view that public transit should have low farebox recovery is predominantly American and the opposite of the majority of successful public transit programs everywhere in the world.

If what you said was true then it would be the inverse - operating costs would be mostly paid out of government subsidies in the areas with most ridership. But in fact, it is (and predictably so) the case that good transit systems have high farebox recovery - the HK MTR, Taipei MRT, and the Tube are those I’m familiar with and they’re all much nicer and more frequent and have high farebox recovery.

In fact, I find the whole thing confusing. Do people actually believe public transit is meant to be some kind of giveaway to a small number of riders? It’s clear from looking worldwide that where it is useful riders pay high enough fares because it is so useful.

I can understand some sort of bootstrap capital investment (or one-off interventions like for COVID-19) but the idea that operating costs should be predominantly covered from general taxation doesn’t really hold up if you look at which places are effective at this.

▲itishappy an hour ago | parent | next [-]

How does this relate to the Interstate Highway System? Its funded neither by fares nor general taxation, but some weird "parallel construction" system of taxation.

▲js2 32 minutes ago | parent [-]

The Highway Trust Fund which pays for the IHS is funded by its users through taxation on gasoline and diesel. I wouldn't call that a weird parallel construction.

▲supertrope 21 minutes ago | parent | next [-]

Fuel taxes only cover half the cost of roads. https://taxfoundation.org/data/all/state/gasoline-taxes-and-...

▲itishappy 15 minutes ago | parent | prev [-]

The result of this system is that if you happen to use less gas for any reason (certainly relevant in this day and age), your transit is essentially subsidized! That's the weird bit in my mind.

▲teiferer an hour ago | parent | prev | next [-]

Good public transit even benefits those not using it by reducing other kinds of traffic. Everbody should be in favor of such investments but many people just don't think that far during their next traffic jam frustrations in rush hour.

▲arjie an hour ago | parent [-]

It isn’t that X goes down if you do Y that matters but whether the utility from X going down is commensurate with the cost of doing Y. There is a cost of reducing traffic which I am happy to pay and a cost of reducing traffic which I am not going to pay. So just telling me something will reduce traffic will not induce me to pay. You also need to handle the other side of the sheet.

▲joe_the_user 2 hours ago | parent | prev [-]

It’s a pretty normal concept that public transit is not a charitable program and must yield benefit commensurate with spend.

The benefits of public transit derive to all of society not necessarily those immediately riding it. That's true of a multitude of state spending, education, social services and so-forth.

The US doesn't directly charge for many of the costs of roads, certainly it doesn't charge for the drawback in the form of pollution and urban sprawl. But when you get to buses, suddenly "you're not a charitable problem..."

▲arjie an hour ago | parent [-]

This argument has to face up to the fact that all of the best systems have high farebox recovery and all the American systems have low recovery except for NY (which is still lower than the good ones). Essentially, if it’s so great to have low farebox recovery why does the Tube, HK MTR, and Taipei MRT have high farebox recovery?

Theorycrafting is all well and good but if you claim that some metric X (farebox recovery) is negatively correlated with some outcome Y (frequent good transit) then you do have to explain why all the good outcome Ys actually have high X. Reality has to meet the theory.

▲supertrope an hour ago | parent [-]

We don't expect roads to be profitable. We don't expect airports to be profitable. But there is a solution to this as well. If the train operator owns the land around each station and collects rent on the shops and homes, they can become profitable.

▲supertrope an hour ago | parent | prev [-]

I think even more important than balance sheets is land use. There's a vicious cycle of car dependency. Things that make driving easy make alternatives bad (government built toll-free roads, mandated parking minimums, restrictive zoning, lack of sidewalks, lack of protected line lanes, wide and high speed urban roads).

A train service only earning 50% of its costs through ticket sales is okay if it provides a useful transportation network. But because we are so dependent on cars, people fight removing parking spots for a dedicated right of way. So public transit get stuck in traffic, and funding is kept at skeleton/welfare service levels resulting in 30 min to an hour between vehicles. The useful public transit network can't even get off the ground because no one believes there will be a critical mass of support to fund and build a useful network.

▲pixl97 31 minutes ago | parent [-]

This here, public transit works when the city is built around it. You can't build public transit around a massive car centered pile of crap.

▲baxtr 2 hours ago | parent | prev | next [-]

Most big European cities run trains every 10-15 minutes and every 5 minutes during rush hour.

▲chasd00 an hour ago | parent | next [-]

In Dallas TX our lightrail runs about every 15 min too. It's works pretty well and is big enough to be actually useful. I like to use for big events when you know parking is going to be a nightmare or expensive. It's slower than a car though, the trip about doubles in terms of time taking the train vs driving.

▲bspammer 18 minutes ago | parent | prev [-]

On a lot of London Underground lines, 5 minutes is considered poor service in rush hour. Every 2 minutes is required to handle the sheer volume of passengers

▲extraextra 3 hours ago | parent | prev | next [-]

If I were to speculate, I'd say that perhaps it might only be feasible in small & dense cities with low traffic, as such high frequency requires a lot of resources.

Was born in a small city with frequent public transportation (5-10 minutes for most routes). As I moved to larger & more congested cities, public transport became less convenient and the schedule more erratic.

▲williamdclt 2 hours ago | parent | next [-]

Definitely not only small cities. Only dense cities maybe, but I'm not sure that the causality link is in the direction you present: big european cities are dense in part _because_ of public transport. They couldn't be so dense without it, you'd need much more car infrastructure (roads, parking lots) which already decreases density, and people would more readily live further out given they'd already need a car anyway.

▲asdff 25 minutes ago | parent | next [-]

European cities, geographically at least, are a lot smaller than american cities. A dozen or two miles across only for the urban area before you get to the rural parts generally. Berlin has a smaller footprint than a lot of rust belt cities for example. Amsterdam is downright tiny by american standards, maybe even smaller than Toledo, OH. What is more is the road capacity is significantly overbuilt in the US, even in cities like Toledo. A lot of americans have a car based frame of reference where they expect to go arbitrary 30 mile distances in about 30 mins.

▲extraextra 2 hours ago | parent | prev [-]

It's obviously a virtuous cycle, but in the case of European cities, they are the way they are because they began when walking was the preferred mode of transport ("preferred" is doing a lot of heavy lifting in this sentence, I know). The most luxurious transport option back then was a horse carriage, which is not much faster than walking. Everything had to be close to everything, streets had to be narrow.

Another important feature that makes public transport suitable is that they developed concentrically, having only one city center.

With such city planning in mind, public transport is the only rational way to move around lots of people on narrow streets.

▲nemomarx 2 hours ago | parent | prev | next [-]

Tokyo manages a very tight schedule and they're enormous, so it can't only be scale that matters. And how do you fund effective transit in a smaller city with less of a tax base?

▲extraextra 2 hours ago | parent | next [-]

I haven't visited Tokyo, but I definitely plan to.

Regarding your question, if the city is made up mostly of apartment buildings & parks, with limited parking space available, almost everyone uses public transport.

There is obviously a trade-off between how pedestrian-friendly or car-friendly a city can be, thus if a city goes hard in the pedestrian-friendly (removing parking spaces, narrowing streets in the center etc.) direction, public transport becomes very attractive & convenient. Having a car becomes a burden.

▲thenthenthen an hour ago | parent | prev [-]

Rail plus property model like in Hong Kong could be one (‘tax free’ zone…)

▲druskacik an hour ago | parent | prev [-]

Isn't it the opposite? Larger city -> denser population -> more public transport demand -> better public transport?

▲asdff 22 minutes ago | parent [-]

Better doesn’t always follow. Nyc has had constant public transit demand but there’s been barely any expansion since public takeover of the private subways.

▲buuyytp 3 hours ago | parent | prev | next [-]

This exists in many cities. See Bus Rapid Transit and many rail lines. Seattle's network has many instances of this.

▲embedding-shape 2 hours ago | parent | prev [-]

> If only most cities could have this today

Judging by the rest of the replies (most of which I'd agree with), it seems more uncommon that they do not, than they do :) I think this heavily depends on how friendly your government in general is to public transport, which can vary heavily if you're in some specific places in the world.

▲atourgates 2 hours ago | parent | prev | next [-]

It occurs to me looking at the map that a tourist in modern day Paris would still be well-served by this network.

That thought also made me wonder how central Paris' modern metro system overlays onto this. Here's a quick little visualization: https://stirring-biscotti-a978fa.netlify.app/

If you're traveling to or interested in Paris and its history, I really enjoyed "Parisians: An Adventure History of Paris" by Graham Robb. Has some good, accessible and entertaining history relating to (among other things) the construction of the metro.

▲maelito 3 hours ago | parent | prev | next [-]

Well he'd be proud to see the extend of the fixed routes network in France today : https://cartes.app/?style=transports#6.32/47.811/2.097

Each blue polygon is a network. Zoom to see the lines.

Of course we should do way better, and unify all that with a single ticket and single website for route planning.

▲gpvos 2 hours ago | parent [-]

The site seems to be under heavy load, so I couldn't see it all. But it seems this map only contains city networks, and not regional networks. The regional bus networks in France are really quite weak, infrequent and don't connect well, even with the now larger régions.

▲mr_toad 4 hours ago | parent | prev | next [-]

I don’t think that there was much fixed scheduling for water transport prior to the the development of steam engines either, because you were usually at the mercy of the winds and the tides.

▲bluGill 4 hours ago | parent | next [-]

Rowing was common and well known. Many ferries cross rivers where tides and the wind are not concerns. Winds near shore are often consistent enough to have near fixed frequency routes.

Ancient Mediterranean maps often reveal ferries and such were not going vast distances but rather they would go from small settlement to small settlement. This would be much smaller boats that could be easily rowed and, in turn, have relatively fixed frequencies. The small boats could get into ports that would be impossible to put a large ship into. As ships grew larger and sailing became more popular, longer distances would happen and then winds and tides would be more important.

▲Someone 3 hours ago | parent | prev | next [-]

https://en.wikipedia.org/wiki/Trekschuit:

“Trekschuit (Dutch pronunciation: [ˈtrɛksxœyt] ⓘ; lit. 'tug-boat', i.e. 'tugged boat') is an old style of sail- and horse-drawn boat specific to the Netherlands, where it was used for centuries as a means of passenger traffic between cities along trekvaarten, or tow-canals.

[…]

By 1700, an extensive network of trekschuit- and ferry services linked all of the important cities in the coastal provinces of the Netherlands. Travel by trekschuit was reliable, comfortable, and cheap. The speed was about 7 km/h, which was faster than walking, and more comfortable than by coach. Many foreigners praised the advantages of the system, leading to the introduction of canals, such as the Erie Canal, in the United States. The boats were pulled along by horse on a towpath (in Dutch called jaagpad, named after the jager (chaser) which accompanied the horse)”

▲AlotOfReading 3 hours ago | parent | prev | next [-]

Scheduled sailings were common in the Roman world, and some medieval European economies. It helped keep ship sizes small when merchants could anticipate the fixed schedule.

▲gpvos 2 hours ago | parent | prev | next [-]

Just dig a canal along the route you want, and use horses to pull the boat along it. See the other comments about the trekschuiten in the Netherlands.

▲barbazoo 2 hours ago | parent | prev [-]

That's right, I just read about that. Even crossing the English channel apparently was unpredictable at times.

▲Someone 4 days ago | parent | prev | next [-]

> Had this really not been done before? Apparently not on land. Ferries are an ancient idea, both for crossing water bodies and for traveling along them. They are fixed routes, of course, but that’s mostly because the shore is fixed.

Historically, not true for the “trekschuit” in 1632. For that, the shore didn’t exist before the route was envisioned. https://en.wikipedia.org/wiki/Trekschuit:

“The first trekschuit 'sailed' in 1632 between Amsterdam and Haarlem and could carry 30 passengers. The trekvaart or canal was dug in a straight line to facilitate an easy pulling process and to guarantee the shortest route”

▲brnt 4 hours ago | parent [-]

My late grandmother once told me this is how she travelled longer distances on occasion as a youth/young woman. Was a good lesson for me in understanding exactly how much she had seen the world change in her lifetime.

▲rationalist 4 hours ago | parent [-]

Just imagine how much we will see change in our lifetimes.

For some of us; that's dial-up, to AI, to who knows what.

▲bloak an hour ago | parent [-]

We don't know yet, of course, but I have the impression that the century in which things changed most was the century from about 1865 to about 1965. Stuff seems to have slowed down a bit since then. But it's all subjective, really: it depends on what you think is important.

▲wolfi1 an hour ago | parent | prev | next [-]

about ferrys. Douglas Adams let one of his protagonists in Dirk Gently's Holistic Detective Agency postulate that the book of revelations was the product of despair waiting for a ferry

▲mft_ 4 hours ago | parent | prev | next [-]

Regarding public transport route design, I've long wondered how much efficiency current routes in a given country might be leaving on the table.

As in: if one collected sufficient anonymised travel data to offer a reliable understanding of the population's travel needs, and given the fixed constraints of the existing road and rail network, and the existing number of buses and trains, how much more efficient could the network be by varying routes, timings, stops, and interactions?

Imagine if such a dataset was made available, and a prize offered for the best solution.

The challenge could also be extended to explore optimal areas for investment in additional infrastructure - a wider road here, a new roundabout or branch line there.

▲asdff 17 minutes ago | parent | next [-]

The interesting thing with transit is that optimal may not be the most optimal. E.g. your model might suggest half mile stop frequencies. Seems good, until the public comment period and all the old folks who take the line show up and ask their particular stop not be displaced.

There is a reason why a lot of american bus networks basically follow the same old streetcar routes that were always there. People become used to existing patterns and build lives around them. New transit is a good opportunity to apply this model, but reworking old transit is tricky because some of your existing ridership will end up with a worse offering by definition, and they will protest. While the people who might benefit will not show up with equivocal advocacy in the public comment meeting.

▲supertrope 11 minutes ago | parent [-]

The bus stop spacing problem is very real. Buses stop every other block in my area. The average speed end to end is no faster than riding a bike! If you suggest deleting some stops people scream about their own convenience or pretend to care about the disabled. By trying to cater to every single constituency, we've designed a bus route that serves no one's interest. A slow bus might not exist at all. People will just buy a car, going into high interest debt if need be.

▲ButlerianJihad 8 minutes ago | parent [-]

Buses can stop every other block, but in practice, they rarely do. Most bus routes that I've taken are neither full nor busy with passengers at every stop. Certainly not all day long. Most bus routes can get away with bypassing several miles' worth of stops at a time. Passengers tend to cluster around certain spots at certain times. Even the main routes have busy times, as well as quiet times in long stretches.

By building in the capability to stop very frequently, they can serve the most people and every area in the route, equally. But day to day, hour to hour, they are definintely bypassing stops, and I can name at least 3 bus routes where the vehicle will certainly reach the speed limit of 45mph or so in-between.

▲supertrope an hour ago | parent | prev | next [-]

Not much. People plan for the lowest common denominator. If service levels surge during certain days or hours that's great, but people don't want to get burned by a period of thin service. Imagine if Fedex said overnight mail could no longer be delivered on Thursdays in certain towns. You'd have to remember to check if today's Wednesday and if the recipient's town is a low service zone. Or you could just switch to a more consistently available network like UPS.

▲asdff 15 minutes ago | parent [-]

Most transit is already biased to the 9-5 with thin nighttime service. As such most people uber back from the bar than wait for the 30 min owl bus service.

▲abdullahkhalids 3 hours ago | parent | prev | next [-]

Pretty much all large public transit authorities already collect all sorts of data about requirements and usage, and have scientists/engineers on payroll to optimize the network within the economic and political constraints these systems operate in.

▲bryanlarsen 2 hours ago | parent [-]

I know my city has that data, but it doesn't help if you optimize for the wrong thing. AFAICT the highest priority is that "everybody has to be within 3 blocks of a bus stop", resulting in serpentine routes the article decries.

▲abdullahkhalids 2 hours ago | parent [-]

"everybody has to be within 3 blocks of a bus stop" is a political choice. It might result in a system that is not optimal from the perspective of a different metric. If you think that different metric would serve people better, go advocate for it politically. But realize that whatever metric gets adopted will still be a political choice. There is no escaping that.

Of course, as you say in the OP, one can certainly encourage the public to use simulations based on publicly made-available data as a guide during these political discussions to convince people that a certain metric is better than others.

▲stevekemp an hour ago | parent | prev | next [-]

I live in Helsinki, where there is a good tram and bus network. Every now and again a major road will be dug up, in the city center, and trams often get rerouted for a few months to work around that.

I've noticed that there are some diversions which are definitely beneficial to me. There are busses from my house to the city center, as well as a tram. If the tram diverts to a different destination that essentially doubles my available "travel destinations" in a way that's really useful.

So no doubt, for me personally, there are changes that could be useful. But perhaps they would be less useful for others.

▲waterheater 34 minutes ago | parent | prev | next [-]

"Efficency" in what domain? Travel time? Cost? Convenience/comfort?

▲nickorlow 3 hours ago | parent | prev | next [-]

due to how hard it is to change the networks, I think there's a lot of inefficient route design. if you look at SEPTA in Philadelphia, they're in the middle of realigning a lot of their bus routes for the first time in 60 yrs and ridership has increased noticeably since they started.

▲bluGill 3 hours ago | parent | prev [-]

Well, there is some of that. It's not near as much as you might guess. Predictable transit is very helpful because people plan their life around it. What the data you're looking at will show where the bottlenecks are, and yes, you can remove a few bottlenecks and make people's life a little bit better, but it's not going to be a major change because of major change will not show up in the data until well after it's made.

I don't remember the terms used, but I've seen data sets of where people live and work in Manhattan, and you do see people who live on subway lines take jobs on that same line, and they don't take jobs on a different subway line that while possible is overly inconvenient.

people have already arranged their life around the existing transportation that exists around them. They are not going to change their life because it is already in place. They want bottlenecks fixed but otherwise don't really need a change to their life. Even if a change would greatly benefit them, they often can't see that and wouldn't imagine themselves making the change to their comfortable life.

The real value of transportation experts is they can look at a map and all your data and say, if we make these changes, over 20 years, the city will redevelop in this way, and then we can ask questions. "Is that how we want the city to develop?" however, the data is never going to show that because the data shows what people are doing today, not what they're going to do in 20 years. Don't get me wrong, experts get this wrong too when they make predictions. However, there is a lot of things we can use to inform our predictions. even though we're not perfect, we can make predictions that are usually right.

Varying the route timing is the absolute worst thing you can do. People need to depend on your transport system. If they have to look at a schedule that's going to change by day to figure out when they can actually get somewhere, they're going to get frustrated and start looking up for an alternative that they control. If you vary your timing at all, it's only because you're changing between a train every minute to train every five minutes. You don't get to go any farther apart than that without losing writers because they no longer can trust that the system will get them there when they want to be there. Physics puts a lower limit on time. I believe the current record is a train every 90 seconds, and I'm not sure how much closer together you can get. The limit for a bus is three minutes apart and even that is extremely hard.

Transit systems that are running worse than 5 minute frequencies have large drops in ridership and as they increase frequency: ridership jumps because people start to use, they can always just go out when they're ready to go. If this wasn't so expensive, everyone in the world would be running 5-minute frequencies all day.

▲bonzini an hour ago | parent | next [-]

I think Manhattan is kinda special because the lines are mostly parallel, there aren't as many east-west lines.

▲asdff 13 minutes ago | parent [-]

There’s also enough job density to be this particular.

▲ghaff 2 hours ago | parent | prev [-]

I live fairly near a commuter rail stop—about a 8 minute drive but not walkable or cycle really even if I biked which I don’t.

It sorta works for going into the nearish big city for a 9-5 event. But it’s worthless for the evening because of infrequent trains.

▲riazrizvi 2 hours ago | parent | prev | next [-]

This is an example of the power of constraints that David Epstein talks about on Youtube (@DavidEpsteinAuthor) and in his book (Inside The Box).

▲readthenotes1 4 hours ago | parent | prev [-]

"He was fortunate to live at a time (the mid-1600s) when, if you were born to the right parents, nobody told you you needed to specialize."

Or, he could have been just that much smarter than you you, dismissive author.

"At age 11, Pascal had re-derived much of Euclid’s geometry from scratch because his father kept the books from him"

Guessing not in the author's bio

▲flexagoon 4 hours ago | parent [-]

Two things can be true at the same time. Pascal was certainly a prodigy, but he was also largely living off family wealth and could afford to not specialize.