一带一路及其毗邻区域道路网密度数据集（2016）

道路密度是指一定区域内道路总长度与该地区面积之比，是评价某一地区的交通状况的常用指标之一。本数据利用OpenStreetMap的交通道路网络数据，采用路网密度、道路通行能力指数、道路通达性指数三个指标来评价“一带一路”陆域的道路发达水平，并借助景观破碎度来定量化评价六大经济走廊途经区域中道路对景观格局的影响。“一带一路”陆域道路密度空间分异明显，总体呈现出沿海高于内陆的趋势，与区域人口密度、社会经济发展程度呈高度的相关性。

Road density refers to the ratio of the total length of roads within a given area to the area of that region, and is one of the commonly used indicators for evaluating the traffic conditions of an area. This dataset leverages OpenStreetMap transportation road network data, employs three indicators—road network density, road traffic capacity index, and road accessibility index—to assess the road development level of the land territory covered by the Belt and Road Initiative (BRI). Additionally, it utilizes landscape fragmentation to quantitatively evaluate the impact of roads on the landscape pattern in the regions traversed by the six major economic corridors. The road density of the land territory under the BRI exhibits significant spatial differentiation, generally showing a trend where coastal areas have higher road density than inland areas, and has a strong correlation with regional population density and the level of socio-economic development.

搜集汇总

背景与挑战

背景概述

该数据集为2016年一带一路及其毗邻区域的道路网密度栅格数据，分辨率为1km，基于OpenStreetMap交通路网数据计算生成。它通过道路网密度、容量指数和可达性指数评估区域道路发展水平，并量化道路对经济走廊景观格局的影响，结果显示道路密度呈现沿海高于内陆的空间分异特征，与人口和社会经济发展密切相关。