5. The thesis proposes two extensions of traditional NDP from the perspective of road network expansion and evolution.
从城市道路交通网络扩展的角度，提出了两类拓广的城市道路交通网络设计问题。
参考来源 - 城市道路交通网络设计问题的相关优化模型与算法The problem of Continuous K Nearest Neighbor(KNN) Query in a road network has been studied by many researchers,and is frequently used in Geographical Information System.
道路空间中连续最近邻居问题(CKNN)是近年来研究领域中的热点问题,并且被广泛地应用在地理信息系统中。
参考来源 - 道路空间中连续最近邻居查询方法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
An improvement of the road network was considered necessary to ensure the import and export of goods to the district.
人们认为有必要改善道路网，以确保向该区进出口货物。
However, the difference from the conventional approach was that this time consideration was given to local transport needs outside the road network.
但是，与传统方法的不同之处在于，这一次考虑的是道路网以外的当地运输需求。
Modifying the road network could reduce delays.
改变道路网能减轻拥堵。
Officials say the vehicles have saved hundreds,maybe thousands, of lives along Iraq's well-developed road network.
VOA: standard.2009.11.02
"This is really designed to get us off the road network, to be able to go cross-country, to go the places that up-armored HUMVEEs go, not be stuck to the road network, which makes us predictable,".
VOA: standard.2009.11.02
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