Description / Abstract:
Introduction
Thousands of years separate the invention of the wheel and the
first self-propelled vehicle. The intervening centuries witnessed
wind-powered vehicles (Figure 1), wheeled sailing ships, and
muscle-driven vehicles (Figure 2), in which human or animal power,
hidden or in plain sight, served as motive power. However, these
did not represent real progress, because neither wind nor muscle
power was faster, more powerful, or blessed with greater endurance
than the combination of horse and wagon. In other words,
development of self-propelled road vehicles depended on finding a
suitable power source.
The availability of this power source around 1885, in the form
of a lightweight combustion engine, resulted in a paradigm shift 50
years after the railway had revolutionized transportation.
Suddenly, it was possible to equip not only two-wheeled vehicles,
coaches, and trucks, but also ships and boats, streetcars,
airships, airplanes, fire engines, and many other devices with an
engine that, thanks to liquid fuel carried on board, could operate
anywhere. Motorized road transport quickly overcame the
decades-old advantage of the railroad, and set new standards for
free-ranging surface transportation, time savings, and individual
mobility. In the process, mass motorization has spawned problems of
its own which threaten to grow to uncontrollable proportions:
energy consumption, dwindling resources, environmental pollution,
climate changes, and traffic accidents, to name just a few. The
automobile must be regarded not only from technological or economic
standpoints, but also from an ecological perspective.