Human-powered transport

Human-powered transport is the transport of person(s) and/or goods using human muscle power. Unlike animal-powered transport, human-powered transport has existed since time immemorial in the form of walking, running and swimming. Modern technology has allowed machines to enhance human-power. Although motorization has increased speed and load capacity, many forms of human-powered transport remain popular for reasons of cost, convenience, leisure, physical exercise, and environmentalism. Human-powered transport is sometimes the only type available, especially in underdeveloped or inaccessible regions. Crawling (human) Walking (233 watts at ) Walking bus Running (1,150 watts at ) Sprinting (1,690 watts at ) Swimming Climbing and mountaineering Ice skating, roller skating, and inline skating Cross-country skiing Human-powered land vehicle Skateboards have the advantage of being so small and light that users can easily carry them when not skating. The most efficient and most popular human-powered land vehicle is the bicycle. Compared to the much more common upright bicycle, the recumbent bicycle may be faster on level ground or down hills due to better aerodynamics while having similar power transfer efficiency. Velomobiles are increasingly popular in colder and/or wetter countries due to the protection they offer against the environment. Cargo bikes are used to transport cargo. Cycle rickshaws can be used as taxicabs. In 2016, AeroVelo cyclist Todd Reichert achieved the human-powered speed record of with a velomobile at Battle Mountain, Nevada. Dutch cyclist Fred Rompelberg set a speed record at the Bonneville Salt Flats in Utah on October 3, 1995, while cycling in the wake of a motor dragster pace-car. The wake of the pace-car reduced the aerodynamic drag against which Rompelberg pedalled to almost zero. Greg Kolodziejzyk set two world records recognized by both the International Human Powered Vehicle Association and Guinness (TM) World Records on July 17, 2006, on a race track in Eureka, California.