* Public transport relies on population density. Once the density is high enough, people tend to take transit whenever it's faster and/or more convenient than d

* Public transport relies on population density. Once the density is high enough, people tend to take transit whenever it's faster and/or more convenient than driving. Which is trivially true for many people, because there is not enough space for wide enough roads and enough parking for everyone to drive. * If you assume that public transport is only for those who can't afford driving, you basically guarantee that it's going to be bad. If you want good public transport, you must design it for the middle class. * 15 minutes of walking is a very long distance to the nearest station. If you are in an area served by reasonable public transport, you should be able to reach the next station in at least one direction in that time.