A congestion tax doesn't meaningfully improve congestion if there aren't good alternative modes of transport available (and buses are not going to run very fast

A congestion tax doesn't meaningfully improve congestion if there aren't good alternative modes of transport available (and buses are not going to run very fast as long as pedestrians are able to cross the street). It would just result in people paying more in taxes, unless they're price sensitive (read: poor and forced to take the hit to travel time).