[elihu]

That's an interesting point that without the interstate highway system (which had many benefits) we might be using rail a lot more than we are currently and therefore emitting less CO2.

Another way of looking at it is that we could consider the interstate highways only half-complete, and that the important part that was never built was an electrical delivery system for the cars and trucks that use it, so they can recharge their batteries without even stopping. It's what we would have been forced to build if fossil fuels weren't plentiful and cheap and we still wanted to use cars and trucks for our main transportation. We could have built that in the 70's in response to the oil crisis, and we could've had 50 years of electric vehicles by now, and it could have worked even using awful lead-acid batteries if cars didn't have to go more than twenty miles or so between electrified road sections.

Building the same thing now would be a lot easier. Battery technology is good enough that it would only be needed at regular intervals on the major freeways, and we can pair the electrified road sections with cheap solar power where it makes sense to do so.

[vagrantJin]

> electrical delivery system for the cars and trucks that use it, so they can recharge their batteries without even stopping.

> and we can pair the electrified road sections with cheap solar power

I don't know. More cars on the road in general is just a bad idea IMO. Traffic, noise, accidents, parking lots, Fast and the Furious movies...

Alternatively we can use a system of transport that can carry a whole neighbourhood in one go, is electrified and can be built underground like a billionaire suggested we do for cars. It can be automated and sorta self driving too, can hit 180km/h without too much of a fuss. And we've been building them for almost 200 years.

Wouldn't that make more sense?

[elihu]

More trains would be good. In the U.S. that's a hard sell, though. People do road trips in their cars for vacation in part because it's so convenient to be able to bring a whole carload of food, luggage, and camping gear with you. And there's a lot of places trains don't go. How many national parks have rail service?

Replacing trucks for long-haul would be good, but you'd have to accept slower deliveries. (I wonder if Amazon ever ships things by train?) I expect it's less of an uphill battle to just figure out how to make the things people are already doing more energy efficient and emissions-free than it is to tell them to completely change what they're doing. Admittedly, that does come with the risk of getting stuck in a local optimum. I just think of all that diesel being burned to push wheeled boxes around the country and I'm appalled at the unnecessary waste. Those fossil fuels could just as well have stayed in the ground.

[mschuster91]

> People do road trips in their cars for vacation in part because it's so convenient to be able to bring a whole carload of food, luggage, and camping gear with you.

On a decent rail infrastructure you can run car-carriers like in the Euro Tunnel between UK and Continental Europe (https://en.wikipedia.org/wiki/Eurotunnel_Shuttle). These things are big enough to accomodate cars and even buses, with people being able to walk around outside of their car.