Well, its not like the six lane highways going in and out of cities like LA are void of traffic jams. Cars are not a real solution to lower commute time, especially since they take a lot of space, so cities need to be much wider, just holding streets for cars, instead of having the building closer together.
The only person whose commute time I know off the top of my head right now commutes by car in 15~20 minutes, so 30~45 minutes is not great.
People spend far too much of their time working or commuting as it is. The last thing they need is even more commute time.
Well, its not like the six lane highways going in and out of cities like LA are void of traffic jams. Cars are not a real solution to lower commute time, especially since they take a lot of space, so cities need to be much wider, just holding streets for cars, instead of having the building closer together.
How do you deliver goods to and from a business inside a city, if not by truck? You still need streets for trucks.