Construction of road infrastructure is fundamental to city operation and development, as well as an important pathway and focus in physical urban-rural integration. The long-term implementation of a system of ring roa...Construction of road infrastructure is fundamental to city operation and development, as well as an important pathway and focus in physical urban-rural integration. The long-term implementation of a system of ring roads plus radiating roads in Beijing has strongly impacted urban infrastructure construction and space-time accessibility. Particularly, recent rapid growth of private car ownership in Beijing has imposed greater loads on its road system, seriously hampering urban commuting efficiency and negatively impacting quality of life. To address such challenges and enhance the rapid development of transport infrastructure, Beijing has accelerated rail transit construction since 2008 in an effort to improve commuting capacity. This paper aims to measure time accessibility and its spatial characteristics in urban areas of Beijing by applying a comprehensive method that combines vector and raster attribute data generated from road network and subway transport infrastructure. By using a dual index of accessibility and road density, the study further reveals the features of and differences in spatial accessibility and the construction of road systems in urban areas of the northern and southern parts of Beijing. The findings of this study can provide a scientific basis for future urban planning and road system construction both in general and with respect to Beijing, given its aspirations to become a world city.展开更多
随着我国全民健身运动的深入开展,社会公众的健康意识明显提高,体育健身设施逐渐无法满足人民日益增长的健身需求。通过对地理信息系统(geographic information system,GIS)技术应用于全民健身的历史发展、应用范围和应用方式的回顾与总...随着我国全民健身运动的深入开展,社会公众的健康意识明显提高,体育健身设施逐渐无法满足人民日益增长的健身需求。通过对地理信息系统(geographic information system,GIS)技术应用于全民健身的历史发展、应用范围和应用方式的回顾与总结,认为GIS在全民健身中的应用范围主要集中在空间数据分析、健身设施资源配置以及健身信息查询检索等,应用方式主要包括全民健身设施的空间与分布特征分析、可达性评估以及相关性验证。GIS技术可以高效处理体育健身设施的布局问题,方便群众参与体育锻炼活动,大幅提升全民健身活动效果,且在科技进步和多学科交叉研究的发展中,为全民健身活动提供更多有力的技术支持。展开更多
基金National Natural Science Foundation of China,No.41601164,No.41601427Key Program of National Natural Science Foundation of China,No.71433008Cultivate Project of Institute of Geographic Sciences and Natural Resources Research,CAS,No.TSYJS03
文摘Construction of road infrastructure is fundamental to city operation and development, as well as an important pathway and focus in physical urban-rural integration. The long-term implementation of a system of ring roads plus radiating roads in Beijing has strongly impacted urban infrastructure construction and space-time accessibility. Particularly, recent rapid growth of private car ownership in Beijing has imposed greater loads on its road system, seriously hampering urban commuting efficiency and negatively impacting quality of life. To address such challenges and enhance the rapid development of transport infrastructure, Beijing has accelerated rail transit construction since 2008 in an effort to improve commuting capacity. This paper aims to measure time accessibility and its spatial characteristics in urban areas of Beijing by applying a comprehensive method that combines vector and raster attribute data generated from road network and subway transport infrastructure. By using a dual index of accessibility and road density, the study further reveals the features of and differences in spatial accessibility and the construction of road systems in urban areas of the northern and southern parts of Beijing. The findings of this study can provide a scientific basis for future urban planning and road system construction both in general and with respect to Beijing, given its aspirations to become a world city.
文摘随着我国全民健身运动的深入开展,社会公众的健康意识明显提高,体育健身设施逐渐无法满足人民日益增长的健身需求。通过对地理信息系统(geographic information system,GIS)技术应用于全民健身的历史发展、应用范围和应用方式的回顾与总结,认为GIS在全民健身中的应用范围主要集中在空间数据分析、健身设施资源配置以及健身信息查询检索等,应用方式主要包括全民健身设施的空间与分布特征分析、可达性评估以及相关性验证。GIS技术可以高效处理体育健身设施的布局问题,方便群众参与体育锻炼活动,大幅提升全民健身活动效果,且在科技进步和多学科交叉研究的发展中,为全民健身活动提供更多有力的技术支持。
