Most importantly, she said she learned to ride with a light load and keep a set of professional attire at work to change into.

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You can also buy a car that shuts down one or more engine cylinders when it is coasting, or cruising under a light load, reducing fuel consumption without sacrificing performance.

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And after a faltering start, the Asians, particularly Nissan and Toyota, are beginning to make inroads into the market for light trucks and SUVs, and have a load of new products ready for launch.

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The introduction of electric light-railway systems might bear some of the transportation load, but these need to be built from scratch, and within the context of a completely new social infrastructure.

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