灾害学2024，Vol.39Issue(4)：185-191,7.DOI:10.3969/j.issn.1000-811X.2024.04.027
灾害应对措施下的北京道路拥堵时空变化
Spatiotemporal Changes in Beijing's Road Congestion Under Disaster Response Measures
摘要
Abstract
The rainstorm disaster has brought great challenges to global cities.Road traffic often faces high risks be-cause it is directly exposed to the outdoor environment and supports multiple activities,which eagerly necessitates response measures.Using fine congestion data,this research comprehensively evaluates the road traffic changes under a typical event in Beijing city.The results show that:①road congestion owns distinct intraday and intraweek patterns,while precipitation and measures bring about significant changes;②the congestion change series displays a"√"form,that is,the conges-tion eases on Monday and aggravates on other days.This phenomenon reflects the process impact brought by response mea-sures;③congestion changes within the city reveal obvious spatial heterogeneity.Monday's decrease is prominent in the north and east,while Tuesday's increase is widespread and intensely concentrated;④spatiotemporal change values are calculated,finding that the morning peak and ring roads alter greatly;⑤targets of rainstorm measures are identified via correlation analysis,confirming the active response of different facilities and the effective implementation of flexible com-muting.Our research points out that Beijing's rainstorm response measures have reduced traffic pressure locally,but the ac-companying congestion shifts need to be further considered.关键词
暴雨应对/城市道路交通/弹性出行/多源数据/时空分析Key words
rainstorm response/urban road traffic/flexible travel/multi-source data/spatiotemporal analysis分类
资源环境引用本文复制引用
刘晓燕,杨赛霓,汪伟平,周子滢,刘欢,焦振寰,石永国..灾害应对措施下的北京道路拥堵时空变化[J].灾害学,2024,39(4):185-191,7.基金项目
浙江省科学技术厅"领雁"项目"台风-暴雨-内涝综合风险监测评估与应用示范研究"(2022C03107) （2022C03107）
国家自然科学基金青年项目"极端洪水对轨道和道路交通耦合系统的破坏机理解析及恢复策略优化"(72001018) （72001018）
广东省自然科学基金面上项目"不同类型打击下的复杂耦合交通网络鲁棒性理论与方法研究"(2023A1515010604) （2023A1515010604）
