Therefore, an accurate forecast on the response of travel demand to the changes in the attributes of the transportation system is required in planning and evaluating future transportation strategy.
因此，准确预测未来交通需求以及其对交通策略的反应对于规划和决策部门具有极其重大的意义。
Transportation in the future won't be limited to the ground; many people predict that traffic will quickly move to the sky.
未来的交通工具将不再局限于地面；许多人预测，空中交通工具将会很快出现。
Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.
未来的食品杂货店可能会储存能保留数年的食品，这样可以腾出货架，减少运输和储存需求。
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