Assessing the cycling catchment of large parks with online maps: a case study of Nanjing City

doi:10.12302/j.issn.1000-2006.202206023

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2023, Vol. 47 ›› Issue (6): 219-226.doi: 10.12302/j.issn.1000-2006.202206023

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Assessing the cycling catchment of large parks with online maps: a case study of Nanjing City

XU Zhen¹(), LI Mingke¹(), CHEN Yan¹, ZHOU Zhenqi²

1. College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
2. Department of Geography,University at Buffalo,New York 14261, USA

Received:2022-06-15 Revised:2022-10-18 Online:2023-11-30 Published:2023-11-23

Abstract

Abstract:

【Objective】Large parks provide suitable natural places for residents to engage in physical activity and social interaction. This helps to promote residents’ health, community integration and contributes to healthy cities. Efficiency, convenience, and zero carbon emissions make cycling an important and promising travel mode between residential areas and large parks. Exploring the cycling catchments of large parks provides a reference for planning and developing urban green spaces. 【Method】This study identified the cycling paths between the large parks and surrounding residences in Nanjing City in the Baidu Map with self-written codes, and analyzed the cycling catchment of the large parks and the relevant benefits for the surrounding residential areas at different cycling times. 【Result】The cycling catchment of large parks within 15 minutes covered most of the residential buildings and neighborhoods in main urban areas, though existing some areas lacking of large parks. The service efficiency of different parks varied and the benefits to residents in different neighborhoods and districts. 【Conclusion】In general, the improvements are expected to increase the cycling accessibility of some large parks in Nanjing City. The construction of large parks should be combined with urban cycling traffic optimization to further improve park service efficiency and residents’ travel experiences.

Key words: comprehensive park, cycling catchment, Baidu Map, low-carbon transportation, slow traffic system, Nanjing City

CLC Number:

TU984

XU Zhen, LI Mingke, CHEN Yan, ZHOU Zhenqi. Assessing the cycling catchment of large parks with online maps: a case study of Nanjing City[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2023, 47(6): 219-226.

Figures/Tables 6

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References 24

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分析指标 analysis index	定义 definition	描述内容 content
POI数量POI number	自公园入口骑行定时间可达的住宅建筑POI数量	一定时间阈值下公园能够服务的住宅建筑数量
服务面积service area	自公园入口骑行一定时间内的可达区域面积	一定时间阈值下公园能够服务的区域面积
服务住区面积residential area	自公园入口骑行一定时间内可达的居住区总面积	一定时间阈值下公园能够服务的居住区面积
服务人口service population	公园服务区域内覆盖的人口数量	一定时间阈值下能够骑行到达公园的人口数量
路径迂回值directness ratio	公园入口到住宅间路径距离与直线距离的比值	公园与住宅之间的骑行道路网络渗透性

距离时间/min distance time	基于直线距离base on straightaway distance						基于路径距离base on route distance
	POI		以入口为中心的直线距离缓冲区 buffer centered on the entrances				POI		骑行路径两侧各50 m缓冲区 buffer of the cycling routes
	数量 number	比例/% proportion	面积/ km² area	面积占比/% area proportion	人口/ 万人 population	人口占比/% population proportion	数量 number	比例/% proportion	面积/ km² area	面积占比/% area proportion	人口/ 万人 population	人口占比/% population proportion
5	17 260	56.28	139.44	44.77	185.64	50.76	7 811	25.47	44.58	14.31	70.56	19.29
10	28 579	93.19	234.75	75.37	322.63	88.21	18 914	61.67	110.18	35.37	182.64	49.94
15	29 676	96.77	251.87	80.86	334.83	91.55	24 981	81.46	147.99	47.51	249.02	68.08

服务效能 service efficiency	公园名 park name	POI数量/个 POI No.			服务面积/hm² service area			服务人口/万人 service population			居住区面积/hm² residential areas
服务效能 service efficiency	公园名 park name	5 min	10 min	15 min	5 min	10 min	15 min	5 min	10 min	15 min	5 min	10 min	15 min
最高 the highest	紫金山风景区Zijin Mount	1 269	3 011	4 395	6.79	15.31	23.58	8.97	23.03	40.57	4.09	7.05	10.75
	月牙湖公园Yueya Lake	690	1 728	3 168	3.35	8.37	15.36	9.52	23.72	45.59	1.77	4.48	7.87
	秦淮河百里风光带 Qinhuai scenery belt	676	1 295	1 790	2.85	6.94	10.93	1.88	3.88	5.38	2.06	4.47	6.68
	玄武湖公园Xuanwu Lake	480	1 338	2 737	2.37	6.65	14.09	4.08	12.89	31.77	0.83	2.13	5.13
	小桃园Xiaotaoyuan	438	1 382	2 677	2.10	7.16	12.64	4.85	18.13	34.08	1.03	3.60	5.98
	石头城遗址公园 Stone city	184	1 303	3 164	1.09	6.66	15.63	3.89	23.43	52.44	0.34	2.53	6.49
最低 the lowest	二桥公园Erqiao Park	1	43	104	0.08	0.60	1.66	0.02	0.16	0.85	0.00	0.07	0.45
	燕子矶公园Yanziji Park	18	285	478	0.39	2.06	3.49	0.21	1.36	2.55	0.08	0.67	1.04
	柳营南路绿地Liuyingnanlu Park	28	306	1 055	0.51	4.03	8.78	0.10	0.84	2.91	0.40	2.42	5.31
	北崮山公园Beigushan Park	38	268	1 143	0.36	1.84	5.61	0.45	2.43	8.28	0.13	1.02	2.83
	河西滨江公园Hexi Park	43	619	1 450	1.10	5.29	12.51	0.30	3.68	11.43	0.23	2.81	6.69

排序 ranking	公园 park name	迂回值平均数 average of directness ratios	迂回值中位数 median of directness ratios	平均转弯次数 average turns
从低到高 low-to-high	二桥公园Erqiao Park	1.25	1.28	3.06
	燕子矶公园Yanziji Park	1.27	1.25	4.46
	柳营南路绿地 Liuyingnanlu Park	1.28	1.28	4.80
	北极阁公园Beijige Park	1.32	1.34	5.28
	莫愁湖公园Mochou Lake	1.33	1.34	6.45
从高到低 high-to-low	北崮山公园Beigushan Park	1.81	1.72	5.70
	仙鹤门公园Xianhemen Park	1.76	1.65	6.35
	雨花功德园Yuhua Garden	1.50	1.47	6.78
	古林公园Gulin Park	1.56	1.55	7.03
	国防园National Defense Park	1.53	1.50	5.71

Assessing the cycling catchment of large parks with online maps: a case study of Nanjing City

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