> Traffic will expand like a gas to meet the available capacity
Yes, but now the roads carry more people. You can't fix congestion, but you can make it so the roads can sustain the local population, even if they're traveling at 20mph during rush hour.
> bike lanes
Sure, but when's someone going to make an ebike that can carry lots of groceries? Or really anything more than 1 large bag. Even a Trader Joe's run for only myself is 4-5 bags, and those portions are small compared to Costco.
Also, bike theft is a huge problem. And coincidentally the places with the best transit and bike lane buildouts have the worst policies towards property theft.
> subways/light rail/monorail, and investing in transit
Until disruptive people are banned from transit (so everything doesn't smell like piss and weed) and light rail is permitted to go faster than cars by NIMBYs, transit will never be an appealing option vs. cars. BART travels at 20mph next to 65 mph freeways sometimes.
I'm all for transit and bikes if these problems can be fixed. But they are political problems, not engineering ones. So I have little faith they will ever be fixed.