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Development of New Modality Municipal Public Transportation for Guangzhou—Group Rapid Transit System

Ru-jiang Zhao,Wung Hee Moh

《工程管理前沿(英文)》 2015年 第2卷 第4期   页码 378-390 doi: 10.15302/J-FEM-2015061

摘要: As one of the primary business centers of China, Guangzhou has been undergoing rapid growth and expansion. Over the past decade, the Guangzhou Municipality Government has significantly upgraded its transport infrastructure, especially with the highly beneficial expansion of its Subway Mass Rapid Transit (MRT) system. Positive steps have also been taken to continue planning the construction of new roads, a Bus Rapid Transit (BRT) system and other transportation facilities. Further administrative and regulatory measures have also been implemented to control the situation, such as the banning of motorcycles from the central city area and the limitation of new automobile registrations. However, Guangzhou continues to face serious challenges of traffic congestion in and around the city center owing to further intensification of its population with economic growth. The need to ease Guangzhou’s stretched public transportation resources, and at the same time to support the realization of its “Eastward Advance” strategy, presents a unique challenge and opportunity to develop an advanced high-efficiency public transportation modality for Guangzhou, viz. the Group Rapid Transit (GRT) involving the use of automation-guided (driverless) smart-vehicles. This paper outlines the PRT/GRT (PRT: Personal Rapid Transit) smart-vehicle modality and also puts forth a proposal of Guangzhou’s first GRT route as the city’s first dedicated transportation link to the scenic landscape of the Eastern Tourism Zone. This GRT route will help in diffusing the city’s traffic congestion as well as support the effectuation of Guangzhou’s “Eastern Expansion” strategy, supplementing the ongoing expansion of the Guangzhou Municipality’s subway MRT networks.

关键词: public transportation system     innovative city transportation     Subway Mass Rapid Transit (MRT)     Bus Rapid Transit (BRT)     Group Rapid Transit (GRT)     Personal Rapid Transit (PRT)    

全生命周期成本分析框架下的电动公交充电器部署和车队管理 Article

曾子凌, 王帅安, 曲小波

《工程(英文)》 2023年 第21卷 第2期   页码 45-60 doi: 10.1016/j.eng.2022.07.019

摘要:

尽管城市交通电气化快速发展,但电池电动公交车(EB)车队的系统规划和管理进展却较为落后。本研究首先综述了影响电池电动系统的基本问题,包括充电站部署、电池尺寸、公交车调度和生命周期分析。目前,EB系统的规划和运行是按顺序进行的,公交车调度是在公交车队和基础设施部署完毕后进行的,这导致了资源利用率低和资源浪费。对此,本文提出了混合整数规划模型整合充电站部署和公交车队管理,以尽可能低的生命周期成本(LCC),包括所有权、运营、维护和排放费用,缩小最佳规划与运营之间的差距。引入了分支定价算法,以减少寻找最佳解决方案所需的计算工作量。本研究还通过分析真实案
例,与目前的公交运营策略和充电站布局相比,一条公交线路的LCC优化后可显著降低30.4%。提出的方法不仅可以进行生命周期分析,还可以为交通部门和运营商提供可靠的充电桩部署及单线和多线的公交调度计划,这两者都是未来具有高电气化普及率的交通系统中决策支持的关键要求,此研究也有助于推动可持续交通的发展。

关键词: 电动公交车     充电站部署     电池尺寸     公交车调度     生命周期分析    

System and prospects of China’s intercity rail transit technology

Ming GONG

《机械工程前沿(英文)》 2018年 第13卷 第2期   页码 323-328 doi: 10.1007/s11465-018-0463-4

摘要:

City clusters and metropolitan areas in China are flourishing in the midst of the deepening urbanization in the country, thereby resulting in the emergence of intercity rail transit. Intercity railways connect mainline and urban railways for an integrated regional transportation system that underpins and leads the development of city clusters and metropolitan areas. This study explores the development mode and service characteristics of intercity rail transit, as well as proposes overviews on this system and prospects of its future technology in China.

关键词: intercity rail transit     city cluster     technical demand     technology system    

Coupling analysis of passenger and train flows for a large-scale urban rail transit system

《工程管理前沿(英文)》 2023年 第10卷 第2期   页码 250-261 doi: 10.1007/s42524-021-0180-2

摘要: Coupling analysis of passenger and train flows is an important approach in evaluating and optimizing the operation efficiency of large-scale urban rail transit (URT) systems. This study proposes a passenger–train interaction simulation approach to determine the coupling relationship between passenger and train flows. On the bases of time-varying origin–destination demand, train timetable, and network topology, the proposed approach can restore passenger behaviors in URT systems. Upstream priority, queuing process with first-in-first-serve principle, and capacity constraints are considered in the proposed simulation mechanism. This approach can also obtain each passenger’s complete travel chain, which can be used to analyze (including but not limited to) various indicators discussed in this research to effectively support train schedule optimization and capacity evaluation for urban rail managers. Lastly, the proposed model and its potential application are demonstrated via numerical experiments using real-world data from the Beijing URT system (i.e., rail network with the world’s highest passenger ridership).

关键词: urban rail transit     coupling analysis     passenger–train interaction     large-scale simulation    

Study of Sustainable Urban Rail Transit Development Model in China

Wen-wu Yang

《工程管理前沿(英文)》 2014年 第1卷 第2期   页码 195-201 doi: 10.15302/J-FEM-2014026

摘要: As the grand urbanization rapidly progresses in China, Chinese government launches a magnificent urban rail transit development plan as the key part of the preferential public transportation strategy. It is very necessary to establish a viable public private partnership model for urban rail construction. The philosophy of transit-oriented-development (TOD) is discussed in this study by reviewing Hong Kong Railway+ Property development model which is proved very successful in mass transit rail development in Hong Kong. This paper examines current practice of urban transit as of conventional public transport infrastructure in China and looks into ways of getting over the bureaucratic and technologic hurdles in order to generating synergy value and opportunity of rail oriented urban development. Taking the TOD and public-private-partnership (PPP) study of Shenzhen metro line 6 as an example, the sustainable urban rail development model is introduced and elaborated. It concludes that the sustainable urban rail transit shall be able to energize the great potential of rail and urban development at macro, meso and micro levels, through effective integration of administration and technology resources, and generation of win-win scenarios among government, metro company, people and stakeholders.

关键词: urban rail transit     Railway+ Property(R+P)     sustainability     transit oriented development     private public partnership    

车路集成环境下BRT专用道时分复用的车路协作方法研究

董红召,凌越,刘冬旭,郭明飞

《中国工程科学》 2012年 第14卷 第7期   页码 68-73

摘要:

为了提高BRT(bus rapid transit)专用道的利用率,基于车辆道路信息集成及协作技术,提出BRT专用道路权时分复用的车路协作方法,建立了BRT专用道时分复用的车路协作控制策略模型。研究了分段式BRT行程时间预测算法,结合实时交通流信息,建立车辆借还BRT专用道的换道时间模型,规划了车辆借还协作时序。实验表明,车辆协作控制策略中行程时间预测和借还时间估计接近实际值,并能够有效地实现专用道的时分复用,而不干扰BRT的优先运行。

关键词: 车路集成环境     车辆协作     BRT专用道     时分复用     换道时间模型    

Lightweight design of an electric bus body structure with analytical target cascading

《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0718-y

摘要: Lightweight designs of new-energy vehicles can reduce energy consumption, thereby improving driving mileage. In this study, a lightweight design of a newly developed multi-material electric bus body structure is examined in combination with analytical target cascading (ATC). By proposing an ATC-based two-level optimization strategy, the original lightweight design problem is decomposed into the system level and three subsystem levels. The system-level optimization model is related to mass minimization with all the structural modal frequency constraints, while each subsystem-level optimization model is related to the sub-structural performance objective with sub-structure mass constraints. To enhance the interaction between two-level systems, each subsystem-level objective is reformulated as a penalty-based function coordinated with the system-level objective. To guarantee the accuracy of the model-based analysis, a finite element model is validated through experimental modal test. A sequential quadratic programming algorithm is used to address the defined optimization problem for effective convergence. Compared with the initial design, the total mass is reduced by 49 kg, and the torsional stiffness is increased by 17.5%. In addition, the obtained design is also validated through strength analysis.

关键词: electric vehicle     body in white (BIW)     lightweight     analytical target cascading (ATC)    

Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

《工程管理前沿(英文)》 2019年 第6卷 第2期   页码 139-151 doi: 10.1007/s42524-019-0030-7

摘要: With the accelerated urbanization in China, passenger demand has dramatically increased in large cities, and traffic congestion has become serious in recent years. Developing public urban rail transit systems is an indispensable approach to overcome these problems. However, the high energy consumption of daily operations is an emerging issue due to increased rail transit networks and passenger demands. Thus, reducing the energy consumption and operational cost by using advanced optimization methodologies is an urgent task for operation managers. This work systematically introduces energy-saving approaches for urban rail transit systems in three aspects, namely, train speed profile optimization, utilization of regenerative energy, and integrated optimization of train timetable and speed profile. Future research directions in this field are also proposed to meet increasing passenger demands and network-based urban rail transit systems.

关键词: urban rail transit     energy saving     speed profile optimization     regenerative energy     train timetable    

Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution

L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY

《能源前沿(英文)》 2012年 第6卷 第1期   页码 47-56 doi: 10.1007/s11708-011-0159-5

摘要: The advancement in power distribution system poses a great challenge to power engineering researchers on how to best monitor and estimate the state of the distribution network. This paper is executed in two stage processes. The first stage is to identify the optimal location for installation of monitoring instrument with minimal investment cost. The second stage is to estimate the bus voltage magnitude, where real time measurement is conducted and measured through identified meter location which is more essential for decision making in distribution supervisory control and data acquisition system (DSCADA). The hybrid intelligent technique is applied to execute the above two algorithms. The algorithms are tested with institute of electrical and electronics engineers (IEEE) and Tamil Nadu electricity board (TNEB) benchmark systems. The simulated results proves that the swarm tuned artificial neural network (ANN) estimator is best suited for accurate estimation of voltage with different noise levels.

关键词: artificial intelligence     power distribution control     state estimation    

Dynamic analysis of rail transit elevated bridge with ladder track

He XIA, Yushu DENG, Yongwei ZOU, Guido DE ROECK, Geert DEGRANDE

《结构与土木工程前沿(英文)》 2009年 第3卷 第1期   页码 2-8 doi: 10.1007/s11709-009-0001-x

摘要: In this paper, a dynamic analysis model of an elevated bridge with ladder tracks under moving train load is established. The whole process of a train running through an elevated bridge at different speeds is simulated. The dynamic responses of the elevated bridge with ladder track and the running safety and comfort index of train vehicles are evaluated. Compared with the dynamic responses of an elevated bridge with ordinary non-ballasted slab track, the ladder track’s effect on reducing the vibration of an elevated bridge is analyzed. The analysis results show that the ladder track has good vibration reduction characteristics as compared to ordinary non-ballasted track.

关键词: rail transit     elevated bridge     ladder track     dynamic response    

CORRECTION to: Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

《工程管理前沿(英文)》   页码 698-698 doi: 10.1007/s42524-019-0047-y

论城市轨道交通的衔接与发展

闫平

《中国工程科学》 2009年 第11卷 第1期   页码 92-96

摘要:

我国城市公共交通领域已经进入了一个快速发展的建设时期,以北京城市轨道交通规划为例,分析当前我国城市轨道交通在规划、建设及运营方面存在的问题,借鉴国际大都市轨道交通在规划、建设、运营方面的轨道交通方式、客流出行换乘方便、整合既有各种资源、交通带动城市发展的经验,提出了应建立综合协调机制、完善轨道交通规划、打造综合交通枢纽的优化原则,以及利用国有铁路资源实现轨道交通换乘与衔接具体建议。

关键词: 城市轨道交通     衔接与发展     调整建议    

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

《环境科学与工程前沿(英文)》 2012年 第6卷 第5期   页码 595-595 doi: 10.1007/s11783-012-0452-5

基于CAN总线的TT-FPS调度算法研究及其性能分析

吕伟杰,刘鲁源,王毅新

《中国工程科学》 2006年 第8卷 第5期   页码 45-48

摘要:

针对CAN总线中消息在固定优先级调度(FPS)算法下传输不可预知、低优先级消息容易被阻塞的问题,提出了一种基于时间触发机制的固定优先级调度(TT-FPS)算法,给出了最糟糕响应时间的计算方法。然后以纯电动汽车消息系统为例进行了TT-FPS的性能分析,验证了TT-FPS 较FPS有更好的性能。

关键词: CAN总线     TT-FPS     最糟糕响应时间    

Optimization of urban bus operation frequency under common route condition with rail transit

Bin YU, Sijia REN, Enze WU, Yifan ZHOU, Yunpeng WANG

《工程管理前沿(英文)》 2017年 第4卷 第4期   页码 451-462 doi: 10.15302/J-FEM-2017036

摘要: The overlap of bus and rail transit routes is common in China. This overlap provides passengers multiple choices for one trip. However, the availability of multiple options would cause uncertainty in the travel distribution of passengers. Given that buses and rail transits are becoming increasingly common, this paper aims to present the overlapped operation condition of bus and rail transit using a bi-level model from the perspective of bus operators. Frequency optimization model is established in the upper-level model. A heuristic algorithm called shuffled complex evolution (SCE-UA) method is used to solve the established frequency optimization model, and three other heuristic methods are compared with SCE-UA. A lower-level Logit model based on Agent simulation is set for traffic mode split. Data on the transit system in Dalian city are chosen as an example to test the feasibility of the model and the algorithm. Results show that as the overlapped optimization of bus route and rail transit routes changed primary bus frequency, the use of SCE-UA to solve such problems has evident advantages and feasibility; furthermore, changed bus frequency would improve bus operations.

关键词: common route     bus operation frequency     bi-level model     Agent simulation     SCE-UA algorithm    

标题 作者 时间 类型 操作

Development of New Modality Municipal Public Transportation for Guangzhou—Group Rapid Transit System

Ru-jiang Zhao,Wung Hee Moh

期刊论文

全生命周期成本分析框架下的电动公交充电器部署和车队管理

曾子凌, 王帅安, 曲小波

期刊论文

System and prospects of China’s intercity rail transit technology

Ming GONG

期刊论文

Coupling analysis of passenger and train flows for a large-scale urban rail transit system

期刊论文

Study of Sustainable Urban Rail Transit Development Model in China

Wen-wu Yang

期刊论文

车路集成环境下BRT专用道时分复用的车路协作方法研究

董红召,凌越,刘冬旭,郭明飞

期刊论文

Lightweight design of an electric bus body structure with analytical target cascading

期刊论文

Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

期刊论文

Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution

L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY

期刊论文

Dynamic analysis of rail transit elevated bridge with ladder track

He XIA, Yushu DENG, Yongwei ZOU, Guido DE ROECK, Geert DEGRANDE

期刊论文

CORRECTION to: Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

期刊论文

论城市轨道交通的衔接与发展

闫平

期刊论文

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

期刊论文

基于CAN总线的TT-FPS调度算法研究及其性能分析

吕伟杰,刘鲁源,王毅新

期刊论文

Optimization of urban bus operation frequency under common route condition with rail transit

Bin YU, Sijia REN, Enze WU, Yifan ZHOU, Yunpeng WANG

期刊论文