This pretty much. Building public infrastructure is insanely expensive and there are capacity limits that can't easily be solved. We need to add public transpor

This pretty much. Building public infrastructure is insanely expensive and there are capacity limits that can't easily be solved. We need to add public transport to the mix that 1) doesn't require heavy additional investment in infrastructure and 2) solves convenience concerns that make buses unappealing and 3) can reliably replace privately owned vehicles.