针对城市综合公共交通工具数量日益增多,为了推进公共交通一体化发展和提升公交车路网服务水平,提出一种基于GIS(Geographical Information System)路径分析和多目标规划的公交车路网优化方法.以汉中市公交车路网为例,借助在线地图应用...针对城市综合公共交通工具数量日益增多,为了推进公共交通一体化发展和提升公交车路网服务水平,提出一种基于GIS(Geographical Information System)路径分析和多目标规划的公交车路网优化方法.以汉中市公交车路网为例,借助在线地图应用程序接口(Application Programming Interface,API)获取公交线路、乘客出行、站点设施等数据,结合GIS路径分析和多目标规划模型,考虑交通状况、服务人口及现有公交路网等约束条件,对汉中市城市公交路线服务和运营进行最短路径优化.结果表明:在发车频率、客运量和城镇人口总数不变时,公交车站点覆盖率从优化前的40.77%提高到优化后的53.77%,路线覆盖率从优化前的49.10%提高到优化后的62.86%.城市公交车路网的优化,既可提高公交车路网的服务水平,增强公交线路规划的科学性,也可实现城市公共交通资源使用率的最大化.展开更多
Jerusalem is holy to the three main monotheistic religions. Hence Jerusalem is, from a touristic perspective, a world city. Jerusalem is also a highly segmented city. While Jerusalem may seem as an extreme case, it is...Jerusalem is holy to the three main monotheistic religions. Hence Jerusalem is, from a touristic perspective, a world city. Jerusalem is also a highly segmented city. While Jerusalem may seem as an extreme case, it is not unique. Many cities attract large number of tourists to various widely renowned sites within them, in many cases with religious facets. Public transport systems are largely designed to address the demand of local residents. Yet, tourist flows often differ from the travel patterns of local residents, both temporally and spatially. This paper evaluates how Jerusalem’s public transport system serves the global tourist city. To this end, the study focuses on independent tourists, not package-tour tourists. Specifically, we analyze to what extent are the main tourist sites served by the public transportation system. To evaluate accessibility to tourist destinations we use GIS to conduct Least-Cost-Modeling. This methodology measures the effective, rather than the Euclidian distance to tourist destination. We find that the accessibility by public transportation to tourist destinations with high global importance, specifically Christian-religious sites is relatively low. In the final part of the paper we propose a number of explanations for that.展开更多
The rapid urban growth in developing city increases the requirement of the efficient and sustainable public transportation system.The urban growth affects the urban form,which indicates the change in human and urban d...The rapid urban growth in developing city increases the requirement of the efficient and sustainable public transportation system.The urban growth affects the urban form,which indicates the change in human and urban development activity.Urban form affects directly and indirectly access to the public transportation system as an assessment of potential riders and proximity to stops increase transit services users.Therefore,access is one of the important aspects for the assessment of transit service efficiency.Public transportation access can be represented by a coverage area and useful to estimate potential riders of public transportation.In this study,a Geographical Information System(GIS)-based spatial statistical analysis method is used to examine the spatial relationship of different urban form indicators with population or riders of transit service in a coverage area and to ascertain how urban form influences public transportation trips in this coverage area.The coverage area is delineated using a GIS-based road/street network distance approach.The spatial analysis results suggested that urban forms have certain impact on trips in coverage area at both ward level and zone level.The statistical analysis implies that significant and positive values of spatial lag coefficient indicate a positive spatial interaction between wards and variable like total coverage area;worker density have shown positive and significant effects on trips of public transportation.展开更多
文摘针对城市综合公共交通工具数量日益增多,为了推进公共交通一体化发展和提升公交车路网服务水平,提出一种基于GIS(Geographical Information System)路径分析和多目标规划的公交车路网优化方法.以汉中市公交车路网为例,借助在线地图应用程序接口(Application Programming Interface,API)获取公交线路、乘客出行、站点设施等数据,结合GIS路径分析和多目标规划模型,考虑交通状况、服务人口及现有公交路网等约束条件,对汉中市城市公交路线服务和运营进行最短路径优化.结果表明:在发车频率、客运量和城镇人口总数不变时,公交车站点覆盖率从优化前的40.77%提高到优化后的53.77%,路线覆盖率从优化前的49.10%提高到优化后的62.86%.城市公交车路网的优化,既可提高公交车路网的服务水平,增强公交线路规划的科学性,也可实现城市公共交通资源使用率的最大化.
文摘Jerusalem is holy to the three main monotheistic religions. Hence Jerusalem is, from a touristic perspective, a world city. Jerusalem is also a highly segmented city. While Jerusalem may seem as an extreme case, it is not unique. Many cities attract large number of tourists to various widely renowned sites within them, in many cases with religious facets. Public transport systems are largely designed to address the demand of local residents. Yet, tourist flows often differ from the travel patterns of local residents, both temporally and spatially. This paper evaluates how Jerusalem’s public transport system serves the global tourist city. To this end, the study focuses on independent tourists, not package-tour tourists. Specifically, we analyze to what extent are the main tourist sites served by the public transportation system. To evaluate accessibility to tourist destinations we use GIS to conduct Least-Cost-Modeling. This methodology measures the effective, rather than the Euclidian distance to tourist destination. We find that the accessibility by public transportation to tourist destinations with high global importance, specifically Christian-religious sites is relatively low. In the final part of the paper we propose a number of explanations for that.
文摘The rapid urban growth in developing city increases the requirement of the efficient and sustainable public transportation system.The urban growth affects the urban form,which indicates the change in human and urban development activity.Urban form affects directly and indirectly access to the public transportation system as an assessment of potential riders and proximity to stops increase transit services users.Therefore,access is one of the important aspects for the assessment of transit service efficiency.Public transportation access can be represented by a coverage area and useful to estimate potential riders of public transportation.In this study,a Geographical Information System(GIS)-based spatial statistical analysis method is used to examine the spatial relationship of different urban form indicators with population or riders of transit service in a coverage area and to ascertain how urban form influences public transportation trips in this coverage area.The coverage area is delineated using a GIS-based road/street network distance approach.The spatial analysis results suggested that urban forms have certain impact on trips in coverage area at both ward level and zone level.The statistical analysis implies that significant and positive values of spatial lag coefficient indicate a positive spatial interaction between wards and variable like total coverage area;worker density have shown positive and significant effects on trips of public transportation.
