地理科学进展 ›› 2016, Vol. 35 ›› Issue (4): 431-439.doi: 10.18306/dlkxjz.2016.04.004
陈建国1(), 周素红1,3, 柳林1,2,**(
), 肖露子1, 宋广文1
出版日期:
2016-04-27
发布日期:
2016-04-27
通讯作者:
柳林
E-mail:chenjianguosysu@163.com;liulin2@mail.sysu.edu.cn
作者简介:
作者简介:陈建国(1980-),男,湖北松滋人,博士研究生,研究方向为时空可达性,E-mail:
基金资助:
Jianguo CHEN1(), Suhong ZHOU1,3, Lin LIU1,2,*(
), Luzi XIAO1, Guangwen SONG1
Online:
2016-04-27
Published:
2016-04-27
Contact:
Lin LIU
E-mail:chenjianguosysu@163.com;liulin2@mail.sysu.edu.cn
Supported by:
摘要:
时间是急救服务的敏感因素,急救服务设施可达性的时空差异对于评估急救设施的选址及急救服务调度的效率,解决公众急救医疗需求与供给之间的矛盾,辅助政府部门的决策都至关重要。交通拥堵是常见的城市问题,尤其是在城市中心区域更为明显,由于交通拥堵带来的时间滞后对急救服务产生的影响不容忽视。本文通过浮动车GPS大数据,分析交通拥堵对广州市中心城区急救医疗设施时空可达性的影响。结果表明:①在考虑道路实际通行状况的情况下,在交通高峰期,社区的急救医疗服务平均可达时间和最长可达时间分别比采用设计时速计算增加20%和25%。②可达性存在明显的时空差异。急救医疗服务可达性以急救医院为中心,沿着路网向四周呈现衰减趋势。急救医院布局较多、路网密集区域的可达性高,反之则低。交通拥堵对路网密集、行车规则设计复杂以及存在通过性交通流的地区影响显著。③对不同阻抗系数下可达性变化的敏感性分析,发现随着阻抗系数的增大,可达性变化的趋势有所放缓,紧急医疗服务可达性的分异变小;这一变化趋势在交通平峰期表现更为明显。因此,在研究城市中心区域急救医疗服务时,考虑交通拥堵对可达性的影响,需要构建基于实时交通状况的可达性评估模型,合理选择模型参数,优化实时急救医疗服务调度,提升急救服务的效率和质量。
陈建国, 周素红, 柳林, 肖露子, 宋广文. 交通拥堵对急救医疗服务时空可达性的影响——以广州市为例[J]. 地理科学进展, 2016, 35(4): 431-439.
Jianguo CHEN, Suhong ZHOU, Lin LIU, Luzi XIAO, Guangwen SONG. Estimating the effect of traffic congestion on accessibility to emergency medical care services: Take Guangzhou as an example[J]. PROGRESS IN GEOGRAPHY, 2016, 35(4): 431-439.
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