"Transit took twice as long but monthly passes were convenient,"
Where I live, getting into the heart of London takes about 45 mins by train and about the same by car - at night, under ideal circumstances.
During the day, driving can easily take 2 hours, usually 3 and occasionally 4. Exiting the city has the same kinds of delays and these can continue well into the night.
IE: optimising johnnycab for public transport is best.
Going in the other direction - to where I work - the nearest bus stop is 2 miles from the destination and there are only 5 busses a day. It takes 2 hours to get there, vs 25 mins to drive. The optimisations are quite different.