> Conversely, trains induce demand for high-density housing near the stations.
The primary existing problem is that high-density housing is prohibited through zoning, or made prohibitively expensive through other regulatory rules. It doesn't matter how much demand you generate if increasing supply is constrained by law. Whereas if you could fix the zoning and building codes then you wouldn't need to induce demand because demand is already there -- it's why housing is so expensive.
> There are many other considerations that need to be taken into consideration to make trains useful: frequency, right-of-way on road crossings (often a problem for light rail)
These are all density again. You get frequency by having enough passengers to fill the transit car on that interval, which you get from higher density. There is no point in sending a bus to carry one person to one house, it might as well be a car.
This is also why right of way and bus lanes are the wrong way to think about it. If you don't have enough density you're going to lose regardless and all the bus lane is going to do is make the traffic worse, because people can't take the bus if it doesn't go where they're going when they're going there and then you're just wasting a lane. Whereas if you do have the density then you still don't build a bus lane because instead you build a subway.
> In a lot of suburbia, there are large parking lots near train stations. In theory, your point is a great advertisement for this setup.
That's trying to have it both ways. If you have to drive to the train station then you have to buy a car and insure it and unless the parking at the train station is free you're now paying for parking. At this point people start wondering why they're hoofing it up to the train platform and paying for transit tickets and waiting for the train instead of just driving the rest of the way to their destination.
To fix this you need more people to live within walking distance of mass transit. Which is to say, you need to build higher density housing or allow mixed zoning so people can live closer to where they work.
>At this point people start wondering why they're hoofing it up to the train platform and paying for transit tickets and waiting for the train instead of just driving the rest of the way to their destination.
Usually, it's because
1) the highway to their destination in the city center has too much traffic, and the train is faster, and
2) there's no parking at their destination, and no place to build it at any kind of affordable price.
Just look at Washington DC: tons of people commute by car to suburban train stations, pay a monthly fee to park in the big parking garages there, and then commute the rest of the way into the city center by train to work in government offices.
The primary existing problem is that high-density housing is prohibited through zoning, or made prohibitively expensive through other regulatory rules. It doesn't matter how much demand you generate if increasing supply is constrained by law. Whereas if you could fix the zoning and building codes then you wouldn't need to induce demand because demand is already there -- it's why housing is so expensive.
> There are many other considerations that need to be taken into consideration to make trains useful: frequency, right-of-way on road crossings (often a problem for light rail)
These are all density again. You get frequency by having enough passengers to fill the transit car on that interval, which you get from higher density. There is no point in sending a bus to carry one person to one house, it might as well be a car.
This is also why right of way and bus lanes are the wrong way to think about it. If you don't have enough density you're going to lose regardless and all the bus lane is going to do is make the traffic worse, because people can't take the bus if it doesn't go where they're going when they're going there and then you're just wasting a lane. Whereas if you do have the density then you still don't build a bus lane because instead you build a subway.
> In a lot of suburbia, there are large parking lots near train stations. In theory, your point is a great advertisement for this setup.
That's trying to have it both ways. If you have to drive to the train station then you have to buy a car and insure it and unless the parking at the train station is free you're now paying for parking. At this point people start wondering why they're hoofing it up to the train platform and paying for transit tickets and waiting for the train instead of just driving the rest of the way to their destination.
To fix this you need more people to live within walking distance of mass transit. Which is to say, you need to build higher density housing or allow mixed zoning so people can live closer to where they work.