5 The Human-Machine Interface

Successful human-powered vehicles are comfortable, easy to control, and have efficient drive systems. A well-designed vehicle interfaces with the rider in a natural, intuitive, and comfortable way. The rider is considered during development of all vehicle systems, so that riding is a pleasure rather than an uncomfortable chore. Comfort, safety, and ease of operation are important attributes for any type of vehicle, regardless of power source. They become crucial with human-powered vehicles because performance depends on an effective interface between the human body and the vehicle.