It's called the tidal wave effect and is the bane of public transport planning. You have to provide buses/trains to cope with rush hour when you make most of yo

It's called the tidal wave effect and is the bane of public transport planning. You have to provide buses/trains to cope with rush hour when you make most of your profits, but then have no choice but to run the stock during the quieter day time. However it is used effectively in cycle track design. A 4m wide bidirectional cycle track can become effectively omnidirectional at rush hour significantly increasing capacity in one direction.