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如今,信息对城市发展的重要性越来越被人们所认识,信息的收集、处理等水平已成为衡量城市先进与落后的标志。世界各大城市把争夺信息资源及信息枢纽地位作为战略目标加以考虑,从而出现了“信息高速公路”的新事物。所谓“信息高速公路”是指以大容量光缆为骨干,依靠多媒体计算机及网络建立的双向大容量高速电子数据传递网络。 1 城市的发展对信息基础设施的要求 1.1 城市信息量的迅猛增长导致通信网络地位上升 城市是地区、社会人口、政治,经济、科技、文化
Nowadays, the importance of information to urban development is more and more recognized by people. The level of information collection and processing has become a symbol of the advanced and backward city. The major cities in the world have taken the fight for information resources and information hub status as a strategic goal, resulting in new things in the “information superhighway.” The so-called “information highway” refers to the high-capacity optical fiber as the backbone, relying on multimedia computers and networks to establish two-way high-capacity high-speed electronic data transmission network. 1 Urban Development Requirements for Information Infrastructure 1.1 The rapid growth of urban information leads to the rise of the status of communications networks. Cities are the regions, social demographics, politics, economy, science and technology, and culture