The author advances some basic problems of planning & evaluating for track traffic in the process of putting sustainable development strategy in practice and stresses the study of planning and evaluating method sy...The author advances some basic problems of planning & evaluating for track traffic in the process of putting sustainable development strategy in practice and stresses the study of planning and evaluating method system for track traffic and environment strategy. Summaries and main creative points presented in the thesis are as follows: ①The changes of track traffic planning objects caused by the concept of sustainable development are analyzed; ②The theory & method of track traffic planning optimal decision is set up ; ③Environment impact assessment for track traffic planning is advanced; ⑤ Urban mass transit network planning is studied; ④Planning of intercity rail system——the alignment optimization of dedicated passenger line and high speed railway line is studied ; ⑥ An overall evaluation index system for sustainable development of track traffic planning is established; ⑦ The track traffic building capacity for sustainable development is studied. Further more, the effect of the method and models with empirical studies is verified. The corresponding application software is realized to provide information service and decision making support to track traffic planning for putting theory into practice.展开更多
The bustling urban environment of Kathmandu Valley is characterized by unprecedented traffic congestion. Due to its bowel-shaped geography, gusty winds rarely remove vehicular emissions from the urban atmosphere, maki...The bustling urban environment of Kathmandu Valley is characterized by unprecedented traffic congestion. Due to its bowel-shaped geography, gusty winds rarely remove vehicular emissions from the urban atmosphere, making Kathmandu one of Asia’s most polluted cities, 100th city in global pollution index. Over 500,000 vehicles travel daily on over 1600 km of roads covering over 675 sq·km urban area. Thousands of low occupancy vehicles are added each year to the urban public transit system (UPTS). Kathmandu faces worse and unreliable traffic from the current UPTS mostly with low occupancy vehicles. Around 4.5 million urban denizens, both permanent and transient residents, suffer from unreliable UPTS. Traffic rules and daily transportation schedules are rarely followed, resulting in frequent traffic jams and accidents. Once experienced, visitors try avoiding the UPTS. Tourism, annually contributing almost 8 percent to Nepal’s total annual GDP, also suffers from poor UPTS. Planners, policy makers, and politicians (P-actors) are seeking ways to improve sustainable UPTS to ameliorate stresses to family life and working hours for the urban majority. Aiming to help P-actors, we propose a transit-tracker model that uses real time information (RTI) in mobile phones and web-embedded devices to inform travelers, drivers, government authorities, and sub-admins. We argue that unreliability in the UPTS motivates urban elites to add more low occupancy vehicles, which in turn reduces already shrunken urban spaces and contributes more per capita air pollution than multi-occupancy vehicles. Since mobile and smart phones are capable of processing RTI to generate meaningful information and inform various stakeholders in communicable languages, we argue that replacing low occupancy vehicles with multi-occupancy buses within a Bus Rapid Transit (BRT) system, on main roads with fixed schedules and strict traffic rules, would not only improve UPTS, but also reduce pollution in the Kathmandu Valley.展开更多
资源的有限性和社会对公交服务需求的日益增长,决定了公交线路的绩效对于整个公交系统的运营和发展具有重要意义.为对常规公交线路网络中的单条公交线路进行绩效评估,本文基于城市公交的属性,即公益性和经营性,构建了单条公交线路绩效...资源的有限性和社会对公交服务需求的日益增长,决定了公交线路的绩效对于整个公交系统的运营和发展具有重要意义.为对常规公交线路网络中的单条公交线路进行绩效评估,本文基于城市公交的属性,即公益性和经营性,构建了单条公交线路绩效评估概念框架.将单条公交线路的服务实现过程分为两个阶段,利用数据包络分析中的面向产出的BCC模型(Banker Charnes Cooper model),计算单条公交线路的运营效率和服务效益.从公交企业和乘客两个角度评估公交线路功能的实现程度,为公交线网的优化设计及政府决策提供参考.最后以泰州市的10条公交线路为例进行了实践应用.展开更多
文摘The author advances some basic problems of planning & evaluating for track traffic in the process of putting sustainable development strategy in practice and stresses the study of planning and evaluating method system for track traffic and environment strategy. Summaries and main creative points presented in the thesis are as follows: ①The changes of track traffic planning objects caused by the concept of sustainable development are analyzed; ②The theory & method of track traffic planning optimal decision is set up ; ③Environment impact assessment for track traffic planning is advanced; ⑤ Urban mass transit network planning is studied; ④Planning of intercity rail system——the alignment optimization of dedicated passenger line and high speed railway line is studied ; ⑥ An overall evaluation index system for sustainable development of track traffic planning is established; ⑦ The track traffic building capacity for sustainable development is studied. Further more, the effect of the method and models with empirical studies is verified. The corresponding application software is realized to provide information service and decision making support to track traffic planning for putting theory into practice.
文摘The bustling urban environment of Kathmandu Valley is characterized by unprecedented traffic congestion. Due to its bowel-shaped geography, gusty winds rarely remove vehicular emissions from the urban atmosphere, making Kathmandu one of Asia’s most polluted cities, 100th city in global pollution index. Over 500,000 vehicles travel daily on over 1600 km of roads covering over 675 sq·km urban area. Thousands of low occupancy vehicles are added each year to the urban public transit system (UPTS). Kathmandu faces worse and unreliable traffic from the current UPTS mostly with low occupancy vehicles. Around 4.5 million urban denizens, both permanent and transient residents, suffer from unreliable UPTS. Traffic rules and daily transportation schedules are rarely followed, resulting in frequent traffic jams and accidents. Once experienced, visitors try avoiding the UPTS. Tourism, annually contributing almost 8 percent to Nepal’s total annual GDP, also suffers from poor UPTS. Planners, policy makers, and politicians (P-actors) are seeking ways to improve sustainable UPTS to ameliorate stresses to family life and working hours for the urban majority. Aiming to help P-actors, we propose a transit-tracker model that uses real time information (RTI) in mobile phones and web-embedded devices to inform travelers, drivers, government authorities, and sub-admins. We argue that unreliability in the UPTS motivates urban elites to add more low occupancy vehicles, which in turn reduces already shrunken urban spaces and contributes more per capita air pollution than multi-occupancy vehicles. Since mobile and smart phones are capable of processing RTI to generate meaningful information and inform various stakeholders in communicable languages, we argue that replacing low occupancy vehicles with multi-occupancy buses within a Bus Rapid Transit (BRT) system, on main roads with fixed schedules and strict traffic rules, would not only improve UPTS, but also reduce pollution in the Kathmandu Valley.
文摘资源的有限性和社会对公交服务需求的日益增长,决定了公交线路的绩效对于整个公交系统的运营和发展具有重要意义.为对常规公交线路网络中的单条公交线路进行绩效评估,本文基于城市公交的属性,即公益性和经营性,构建了单条公交线路绩效评估概念框架.将单条公交线路的服务实现过程分为两个阶段,利用数据包络分析中的面向产出的BCC模型(Banker Charnes Cooper model),计算单条公交线路的运营效率和服务效益.从公交企业和乘客两个角度评估公交线路功能的实现程度,为公交线网的优化设计及政府决策提供参考.最后以泰州市的10条公交线路为例进行了实践应用.
