Bingfeng si

Bingfeng si
Beijing Jiaotong University | NJTU · School of Traffic and Transportation

PhD

About

57
Publications
6,244
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448
Citations

Publications

Publications (57)
Article
Full-text available
Passengers traveling on transit networks involve two kinds of decision-making strategies: deciding which lines are attractive at an origin or transfer node (denoted line strategy, LS), or deciding which node to transfer at when riding a line (denoted node strategy, NS). Combining these two strategies, this paper proposes a novel variational inequal...
Article
Full-text available
For urban rail transit (URT) operation and management, it is important to accurately estimate the spatial and temporal passenger flow distribution spreading all over a URT network. Unfortunately, the literature review shows that the existing simulation-based methods and dynamic assignment methods are not able to satisfactorily achieve the goal. The...
Article
Full-text available
Setting exclusive bus lanes (EBLs) on existing roads is a major measure to practise bus priority. However, the capacities for different vehicles will be changed with such strategies and then the travel times of different modes will be also changed. Accordingly, the presence of EBLs may be associated with significant impacts on the travellers’ mode...
Article
Full-text available
Variable message signs (VMSs) are an important means of providing traffic information in order to help drivers to better travel in a transportation network. Effectiveness of VMSs largely depends on the numbers and locations of VMSs in a transportation network. Although a few optimization models have been proposed to find candidate roads to locate V...
Article
Full-text available
User equilibrium theory is used for modeling transportation demand in urban multimodal network. A mathematical optimization model is constructed to meet user equilibrium condition for such system while considering the competitive relationship between different modes. It is also proved that the optimal solution satisfies the logit based mode-split....
Article
Not only the static factors including road grade, traffic flow, and road operation state, but also the dynamic factor of information attenuation property were considered, a locating algorithm of urban variable message sign (VMS) considering the properties of road sections was proposed. In view of 4 main road properties closely related to the traffi...
Article
Full-text available
So far, the studies on rail transit assignment problem are mainly static, which are hard to describe the dynamic characteristics of the transit flow. The networking of the rail transit networks and its schedule-based operation mode make it reasonable to study the dynamic flows on rail transit networks using schedule-based assignment method. Firstly...
Article
This paper describes a case study comparing a multi-class transit assignment model with its single class counterpart for estimating the passenger flows of the Beijing subway network—one of the largest railway transit networks in the world. Multi-class traffic assignment has been widely considered as a theoretically sound approach to capture the inh...
Article
Habitat fragmentation is a harmful impact on wild animals. In this paper, we propose an agent-based simulation model to estimate the fragmentation impacts (FIs) on wild animals caused by road network. We employ predator-prey system as a simplified ecological system, and investigate FIs on wildlife by adding roads gradually into the habitat of wildl...
Article
Full-text available
Based on stochastic user equilibrium principle, the route choice and parking choice behaviors of travelers were analyzed, and the urban road parking assignment model meeting the logit relation was set up. Based on the revenue management ideology, the maximum parking revenue was taken as decision target, the bi-level programming model of urban parki...
Article
Full-text available
This paper considered the impact of transfer times on passengers' travel costs by defining the transfer penalty factor. Different with the traditional studies, the transit assignment model was formulated based on the augmented transit network. The passengers' travel costs including walking time, waiting time, in-vehicle time and transfer time was p...
Article
This study developed a methodology to model the passenger flow stochastic assignment in urban railway network (URN) with the considerations of risk attitude. Through the network augmentation technique, the urban railway system is represented by an augmented network in which the common traffic assignment method can be used directly similar to a gene...
Article
We propose to use the neural network to process the data with timing characteristics by analyzing urban rail transit passenger flow timing characteristics and the mechanism of RBF neural network. A parallel weighted neural network model based on passenger flow sequence characteristics is developed. We use this model to forecast the Beijing urban ra...
Article
This work proposed a model for transit schedule design by integrating the spatial-equity considerations into the slack-time setting problem. The proposed model can help to design a transit service for more equitable reliability of all stops distributed along the route. The transit operators' risk taking attitudes are also taken into consideration b...
Article
Focusing on the dynamic passenger flow assignment for urban subway network, this paper proposes a method to build the space-time extended network for urban subway system based on the schedule information. First, the dynamic characteristics of network flow are analyzed and the definition of the spatial structure for subway network is proposed based...
Article
Literature review indicates that little is known about traveler behavior, such as transfer and route choices, in large transit systems because of the number of alternative routes involved and lack of empirical data. Even though many transit route assignment models have been developed and ample automated fare collection data have been collected, nea...
Article
In this paper, the estimations of maximum genus orientable embeddings of graphs are studied, and an exponential lower bounds for such numbers are found. Moreover, such two extremal embeddings (i.e., the maximum genus orientable embedding of the current graph and the minimum genus orientable embedding of the complete graph) are sometimes closely rel...
Article
In this paper, the structural characteristic of urban multimodal transport system is fully analyzed and then a two-tier network structure is proposed to describe such a system, in which the first-tier network is used to depict the traveller’s mode choice behaviour and the second-tier network is used to depict the vehicle routing when a certain mode...
Article
Full-text available
Traditional system optimization models for traffic network focus on the treatment of congestion, which usually have an objective of minimizing the total travel time. However, the negative externality of congestion, such as environment pollution, is neglected in most cases. Such models fall short in taking Greenhouse Gas (GHG) emissions and its impa...
Article
In this paper, the major factors (including travel time, transfer time and transfer count) that impact the passenger's route choice in urban rail transit network are fully considered. The generalized travel cost function is formulated and then the passenger's route choice behaviour is analyzed based on the random utility theory. A Logit-based model...
Article
Full-text available
To investigate the relationship between cyclist violation and waiting duration, the red-light running behavior of nonmotorized vehicles is examined at signalized intersections. Violation waiting duration is collected by video cameras and it is assigned as censored and uncensored data to distinguish between normal crossing and red-light running. A p...
Article
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Many equilibrium models and algorithms based on homogeneous motorized traffic have been devised to model urban transport systems in developed countries, but they are inadequate when it comes to represent mixed-traffic urban transport systems, including automobiles, transit, bicycles, and pedestrians, in developing countries such as China or India....
Article
Full-text available
To investigate bicyclists' behavior at unsignalized intersections with mixed traffic flow, a bicycle capacity model of borrowed-priority merge was developed by the addition-conflict-flow procedure. Based on the actual traffic situation, the concept of borrowed priority, in which the major-road bicycles borrow the priority of major-road cars to ente...
Article
Many algorithms have been presented to solve the traffic assignment problem. Recently, Bar-Gera introduced the concept of ``last common node'' into an origin-based algorithm to solve the traffic assignment problem. However, how to find the last common nodes has not been investigated in detail. In this paper, we present a matrix method for finding t...
Article
Much research about travel time estimation mainly focuses on basic segments and intersections, and less on bus stops. In this paper, link resistance function near a bus stop under mix traffic conditions was established. To overcome the shortcoming of numerous estimated parameters in the traditional models, the proposed model was transformed to a no...
Article
As an effective method to alleviate the traffic congestion, urban rail transit system has been extensively studied recently in which the structural properties are the most important aspect to understand the functions of urban rail transit system. Here, from the dynamic viewpoint, five measure characteristics of the complexities of Beijing urban rai...
Article
Full-text available
This paper presents an augmented network model to represent urban transit system. Through such network model, the urban transit assignment problem can be easily modeled like a generalized traffic network. Simultaneously, the feasible route in such augmented transit network is then defined in accordance with the passengers’ behaviors. The passengers...
Article
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Article
In this paper, computational models of environmental pollution and energy consumption of urban multimodal traffic network are proposed according to pertinent research and a multi-objective programming model is then developed to formulate optimization problem for such a system. Simultaneously, the main factors, such as travel time, pricing and conve...
Article
Full-text available
To determinate car capacity at bus stops with mixed traffic, a new theoretical approach was developed on the basis of additive-conflict-flows procedure. The procedure was extended from homogeneous traffic flow to mixed traffic flow. The conflicts among cars, buses and bicycles near the stop can be described by the extended procedure. The procedure...
Conference Paper
This paper analysis the current situation of Chinese Railways (CR), the progress of reforms in future, and possible future developments, the purpose to give a new integrate rail-post package distribution system in China. Based on it, this paper proposed a new approach of supply chain time-cost modeling. The first section describes the current resea...
Article
Full-text available
The structural characteristic of urban multimodal transport system was fully analyzed and then based on graph theory, a hierarchical network was proposed to describe the system. Simultaneously, the complex travelers' choice behaviors including traffic mode choice and route choice were analyzed in hierarchical network and based on the analysis of tr...
Conference Paper
In this paper, the structure of a multi-mode urban transport system is fully analyzed and then a super-network model is proposed to describe such a system. Based on analysis of travelers' combined choices, the generalized travel cost functions and the link impedance functions are formulated, where the interferences between different modes on the sa...
Article
Full-text available
A bilevel programming approach is used to study the strategies of increasing revenue of the railway agency running between Beijing and Tianjin, China. Bilevel programming approaches have been used in many studies to tackle a variety of transportation problems, but rarely for railway revenue strategy analysis. In this paper, the upper-level problem...
Article
Full-text available
In many Chinese cities, traffic streams near bus stops differ from those of bus stops in developed countries. There are usually two lanes at a Chinese curbside stop: a nonmotorized lane and a motorized lane. Bus stops are often located on the nonmotorized lane. When a bus dwells at a curbside stop, nonmotorized vehicles, mainly bicycles, will move...
Article
The passenger flow assignment problem for the urban transit network is relatively complicated due to the complexity of the network structure and many factors influencing the passengers’ route and line choices. In the past three decades, many models have been proposed to solve the passenger flow assignment problem. However, the common-line problem r...
Article
Full-text available
Parking is obviously one of the crucial factors that affect the performance of a transportation system. The main focus of this paper is to study the routing and parking problem in urban traffic network simultaneously. First, the factors including road-driving time, parking cost, and walking time that influence drivers' parking choices are all consi...
Article
The reason for the drawback that Dial's algorithm was used to solve urban Logit-based stochastic traffic network assignment was analyzed. Considering the link travel cost information, efficient path was redefined and based on it, the necessary condition of efficient path judged by link travel cost information was presented simultaneously. An improv...
Article
Full-text available
In this paper, the problem of interferences between motors and non-motors in urban road mixed traffic network is considered and the corresponding link impedance function is presented based on travel demand. On the base of this, the main factors that influence travelers’ traffic choices are all considered and a combined model including flow-split an...
Conference Paper
In this paper, a bi-level programming model is presented to determine the optimal system performance for urban traffic network under the scenario that the drivers' parking and route choice behaviors with or without advanced transportation information system (ATIS) are considered. An extension of the successive average algorithm based sensitivity an...
Article
In order to alleviate urban traffic problems such as congestion, air pollution, and shortage of fuel, it is necessary to develop public traffic system with priority. A fundamental requirement for bus priority policy is to develop transit flow assignment models in the multimode network. Travelers' choice behaviors, e.g., mode and route choice, are i...
Conference Paper
In this paper, the characteristics of motor and non-motor traffic and their interference in urban mixed traffic network are discussed. A new link resistance function is presented, in which the interference between motor and non-motor is taken into account. On this base, a combined model is proposed by using variational inequality method, in which t...
Article
In this paper, the characteristics of different traffic modes including cars, buses, and bikes are considered in all respects. On the basis of this, the link resistance functions for different roads in an urban mixed traffic network are presented based on travel demand; simultaneously, the interferences among different traffic modes are taken into...
Article
Aimed at the characteristic of urban mixed traffic network in China, such as the different vehicles running in the same road, considering the main influence factors of travelers' traffic choice, the travelers' traffic choice behaviors including traffic mode choice and route choice in urban mixed traffic network were analyzed. From the point of view...
Article
Full-text available
Taking into full consideration the major factors (including the travel time and times of transfer) influencing the passenger flow assignment pattern in the urban railway traffic network and the specific characteristics of the urban railway traffic network and combining with the seamless transfer operation of the domestic urban railway traffic, the...
Article
In this article, the stochastic user equilibrium models are proposed for assignment problem in the inter-city passenger transport network based on discrete choice theory, in which the different transport prices are regarded as perturbation parameters. Furthermore, a tri-level programming is presented in order to seek the optimal passenger transport...
Article
Authors analyzed the basic factors (including time, cost, convenience and comfort) that influenced passengers' choice behaviors under the condition of multi-mode (including car, taxi, bus, track and bike) traffic network. A flow-split model and its algorithm for urban mixed network were presented based on stochastic user equilibrium (SUE) theory. F...
Article
In this paper, we analyze the passengers' choice behaviors under the condition of multi-mode passenger transportation. A flow-split model for the passenger transportation market is presented based on the SUE theory. Subsequently, A bi-level programming is proposed for passenger transportation market optimization while the benefits of passengers and...
Article
The passengers' choice behaviors are analyzed under the condition of multi-mode passenger transportation. A flow-split model and its algorithm for inter-city transportation are presented based on the SUE theory and Chaos theory. Finally the applications of the model and its algorithm are illustrated with a practical case. By the method of sensitivi...

Projects

Project (1)
Project
In recent years, expansion of urban population and rapidly increasing motorization lead to serious transport related externalities like growing congestion and pollution in some megalopolises of China. Meanwhile, the most sustainable and affordable trips by the modes of public transit and non-motorized have to bear such external costs caused by motorized mode especially private car, resulting in the issue of social equity. Multimodal transport system is a superposition or compound of different sub-systems including automobile network, transit network, and subway network, while there are big differences between individual travel behaviors and traffic management objectives. Therefore, the management of urban transport system contains a lot of basic science issues. In this project, we carry out our research work based on the basic characteristics of supply and demand in China's urban transportation system. Firstly, we will fully analyze the combined choice behaviors of different travelers according to the personal generalized travel cost to explore the structural features and the temporal and spatial distribution of the travel demand. Further, we will reveal the mechanism of actions between various types of travel behaviors and the resulting network traffic flows and the external costs consisting of traffic congestion and environmental pollution. At last, we will find Pareto-improving based urban transportation system management methods by fully considering the social equities of economic means and allocation of road resource. The related optimization models and algorithms will be proposed in this project. Therefore, this research has important academic values in development of the existing traffic management theory. Moreover, it has important practical significance in improvement the urban traffic management and policy-making in our country.