Effective and scientific traffic volume forecast is important for decision and management for highway passenger transport.
科学有效地预测公路客运量对于公路客运的管理和决策具有重要意义.
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Highway passenger transport should reach 540 billion passenger - km and freight transport, 512.5 billion ton - km .
公路客运周转量5400亿人公里,货运周转量5125亿 吨公里.
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