Human-powered transport refers to transportation that is powered by humans, rather than by engines or motors. Two examples of human-powered transport are biking and pedicabbing. Biking is a form of transportation that involves riding a bicycle, which is propelled by the rider's legs. Pedicabbing is a form of transportation that involves riding in a three-wheeled vehicle, which is propelled by the rider's legs. Both biking and pedicabbing are popular forms of human-powered transport, as they are both environmentally friendly and require no fuel.