Assuming that a constant travel-time budget, geographic constraints and short-term infrastructure constraints persist as fundamental features of global mobility, what long-term results can one expect In high-income regions, (21) North America, our picture suggests that the share of traffic (22) supplied by buses and automobiles will decline as high-speed transport rises sharply. In developing countries, we (23) the strongest increase to be in the shares first for buses and later for automobiles. Globally, these (24) in bus and automobile transport are partially offsetting. In all regions, the share of low-speed rail transport will probably continue its strongly (25) decline.
We expect that throughout the period 1990～2050, the (26) North American will continue to devote most of his or her 1.1-hour travel-time (27) to automobile travel. The very large demand (28) air travel (or high-speed rail travel) that will be man
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| One day two scientists were quarrelling
about whose watch was better, the German one or the Japanese one Since they were
scientists, they decided to do an experiment to test the watches. They went into
their lab and filled a basin with water, put the watches in, waited for 20
minutes and took them out. They could see there was something wrong with both watches. They observed them for several hours before speaking to each other. They both silently found that the German watch was losing 60 minutes and the Japanese one doubled that. The scientist with the Japanese watch then slowly raised his head and said, "Both watch are out of work, but my watch is right more often than yours, so it’s better." The scientist with the German watch went home without saying a word. |
