Cabs could be highly useful for various emergencies or more generally for people in need of urgent singular transport. Ambulances cover the medically injured.

Cabs could be highly useful for various emergencies or more generally for people in need of urgent singular transport. Ambulances cover the medically injured. Buses cover normal strictly time regimented use. A simple scenario: my son has been injured at home and I need to immediately get home or to the hospital. The bus may take far too long depending. That's an example of an urgent need for singular transport.