If the goal is to prevent people from commuting by car then we should just tear up or barricade all the roads. No need to invest in public transit, since that’s not part of the goal. From what I can tell, this is the actual policy the SF area has been implementing for the last decade.
I’d think a better goal is to minimize the average time and environmental impact of commutes, while maximizing the number of people that can use the transit system to commute (including cars, bikes, busses, trains, etc).
Wow I never thought of that! Here I thought barricading the roads would solve everything! But you're right, people could actually still get where they're going but use bikes, buses, trains etc.
I’d think a better goal is to minimize the average time and environmental impact of commutes, while maximizing the number of people that can use the transit system to commute (including cars, bikes, busses, trains, etc).