public transport - maximise profit or maximise use

The article by T Rajan in the Straits Times on public transport provides a lot of fruits for thoughts. First point is that public transport operators are not happy that at peak period the trains and buses are only 80% full. Imagine if they are 100% full. What a joke! Would those who expect a 100% full trains and buses be willing to ride on them as their preferred mode of transport? Is a world