Monitoring of UN sustainable development goal SDG-9.1.1: study of Algerian “Belt and Road” expressways constructed by China

• DOI: 10.7717/peerj.8953
• Publication Date: 2020-06-02T07:49:32Z
• Authors: Zhanhai Jia; Mingquan Wu; Zheng Niu; Bin Tang; Yuxuan Mu
• Keywords: Ring road; Settlement (finance); Spatial Planning

The proportion of the rural population who live within 2 km an all-season road is indicator United Nations’ Sustainable Development Goals (SDGs) 9.1.1. This paper aims to calculate SDG 9.1.1 in proximity five Algerian expressways. Three monitoring methods are proposed for different spatial regions based on expressways built by China’s Belt and Road Initiative Project. These remote sensing WorldPop High Resolution Settlement Layer (HRSL) data. results indicate that (1) statistics show Project have increased buffer zone 192,016 between start construction eight years after its completion. By end 2019, 329,291 accounting 1.17% population. (2) Based populations estimated form built-up index (NDBI) building areas, area Bejaia-Haniff Expressway 2011, 2015, 2019 were 273,118, 306,430, 375,408, respectively. (3) HRSL grid that, were: East-West = 911,549, Bejaia 127,471, Tipaza 71,411, North-South 30,583, Cherchell Ring 41,657. (4) A visual interpretation method Google Earth imagery was used count number buildings floors town Tikhramtath. each floor, Tikhramtath 2017, as 1,790, 2,785, 3,365, 3,870, (5) Through analysis accuracy assessment, appropriate statistical determined.