关键词：城市化，城市走廊，城市网络，可持续发展，SLEUTH
摘 要：快速城市化对印度等发展中国家的城市造成了不可逆转的负面影响，导致自然资源枯竭，促进了不平衡和不均衡的城市化。为了应对人口涌入核心城市区域,促进整体、可持续发展,政府和规划机构现在都在关注区域发展。像印度这样的发展中国家为未来城市走廊导向发展制定了规划。
本研究旨在通过采用多时相卫星数据及其在印度城市网络中的地位的方法,了解交通走廊影响的两个主要发展中城市的城市增长。土地利用分析通过总体精度、Kappa统计量等措施进行验证,取得了较好的数值分别超过85 %和0.75。层次网络分析表明,基于城市增长率的五个不同的聚类。在这些集群中,班加罗尔、艾哈迈达巴德和普尼集群基于影响这些城市增长的城市交通廊道进一步入围分析。
本工作采用基于元胞自动机的SLEUTH模型,仔细观察走廊影响下区域的细分层次细节。经过粗、细和最终三个阶段的耗竭率校准以及统计拟合措施,艾哈迈达巴德地区的城市扩张从2017年的497.50平方公里增加到2025年的826.24平方公里,而普恩地区在2025年经历了901.11平方公里的巨大城市面积转变,2017年为497.27平方公里。
这项分析的结果将有助于政策制定者和规划者引导有关未来城市趋势的决策,以适应更安全、更健康、可持续和可生活的城市生态系统。
Abstract: Rapid urbanisation has been a factor affectingcities negatively and irreversibly in developing countries like India,adversely leading to depleting natural resources and promoting unbalanced anduneven urbanism. To handle the influx of population into core urban regions andto promote holistic, sustainable development, government and planning agenciesare now looking upon regional development. Developing countries like India haslaid plans for future urban corridor-oriented development. This study aims tounderstand the urban growth of two major developing cities influenced bytransport corridor through a methodological approach using multi-temporalsatellite data and its position in India's network of cities. Land use analysiswas validated with the aid of measures such as overall accuracy and kappastatistics, with good values of more than 85% and 0.75 respectively wereachieved. The hierarchical network analysis indicated five different clustersbased on the urban growth rate. Among these clusters, Bangalore, Ahmedabad andPune cluster was further shortlisted for analysis based on the urban transportcorridor affecting the growth of these cities. Cellular automata-based SLEUTH modelwas adopted in this work to carefully observe sub-division level details of theregion under the influence of the corridor. Exhaustive calibration, with threephases of coarse, fine and final, validation procedure along with statisticalfit measures reveal urban expansion for Ahmedabad region has witnessed anincrease from 497.50 km2 (2017) to 826.24 km2 (2025)while Pune region has experienced tremendous urban area transformation of 901.11km2 in the year 2025 against 497.27 km2 in 2017. Resultsof this analysis would help policymakers and planners to inculcate decisionsconcerning future urban trends accommodating safer, healthier, sustainable and liveableurban ecosystem.
Key: Urbanisation, urban corridor, city network, sustainable development, SLEUTH
全文: DOI