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Attempts are often made to find an optimal coordinated control plan for a group of traffic signals in urban areas, such that platoons of vehicles can proceed through a continuous series of green lights without stopping, thereby reducing considerable unnecessary delay. One main objective of coordinated control is to provide the maximum bandwidth progression by adjusting the offset and phase sequence...
With the increasing of cars, the influences of bus stops on urban transportation have become increasingly prominent. The researches about the origin-destination of public transportation will help to optimize layout of bus stops, reduce the influences of origin-destination of public transportation on the traffic, and improve the traffic efficiency of bus station road. In this paper, basing on the nagel-schreckenberg...
As a sub-business of highway passenger transport, road passenger transport based express (RPTB) has obtained good benefits through relying on passenger transport. However, direct delivery restricts the capacity and structure of its transport network. In order to enhance the network capacity, improve network structure and strengthen the advantage of its timeliness, this paper proposes an idea of transfer...
On relieving the growing serious urban traffic congestions, the problem of designing fuzzy control strategies for periphery networks that include freeway and related urban expressway(abbreviations: junction) is considered starting with the analysis on impact factors about ramp metering control. The presented novel methodology based on the fuzzy control and neural networks modeling paradigm whose input...
Vehicle Routing Problem with Time Windows (VRPTW) is a well known NP-hard problem. A typical way to solve this problem is to partition the customers into groups first and then construct optimal routes for each group or groups. Conventionally, customers are partitioned according to the spatial distance only, while ignoring their time window requirements. In this paper, we consider jointly spatial and...
Metro takes the most part of energy consumption in urban public service systems, it's important to make the train movement in an energy-efficient way. Based on the characteristics of train movement and control rules of locomotive, an urban train running on an uneven rail with the specific run-time for minimal energy consumption can be formulated as a two-level hierarchical problem. On the first leve1,...
At present, the common existing problem of Traffic Impact Analysis (TIA) is that there is no control on land development intensity on the stage of approval. This paper evaluates the restriction of residual capacity of intersection on land development intensity. Intersection is frequently a bottleneck of urban road network. With estimation of the proportion of turning flow and consideration of traffic...
To analyze the lane-crossing behavior of non-motorized vehicles under the influence of curb parking, the lifetime data analysis method is adopted to examine the observed data for non-motorized vehicles. The concept named valid volume is introduced to describe the relation between the probability of lane-crossing behavior and non-motorized vehicle volume, evaluate the influence of curb parking, then...
Capital stock is one of the key indices for macroeconomic analysis, and always is measured within the national wealth accounts. Although economists have gathered some experiences in the field of capital stock measurements, no one measures highway capital stock as an independent asset. Since 1998, large investments have formed into a huge public asset of the extensive highway system, and it contributed...
In the Olympic Games opening and closing ceremonies, participants' arrival and departure transportation demand in small area and short period of time with high volume is a great challenge for transportation services. Analyzing the arrival and departure traffic mode is the basis of traffic organiziation. With the survey data collected from the opening and closing ceremonies, this study explores the...
Urban agglomeration is a strong vitality subsystem of large regional city system with significant regional advantages in space and linked features in network. Objective and accurate assessment of each node importance of highway network is a vital part for regional road network layout planning. Problems in the existing node important evaluation methods are analyzed. And for the characteristics of urban...
This paper presents a new approach for calculating straight lane capacity under mixed traffic conditions, especially in China. The First Discharge Headway (FDH) is applied as a novel to improve Stop Line Method model, and the influencing factors of FDH are analyzed. To calibrate the FDH probability distribution, investigation data of four intersections in Beijing are employed. The Equivalent First...
In the urban traffic network, the trip generations of every origin and trip attractions of every destination are closely related to the economic level of the traffic zone, land use, population, and the other factors, generally accurately forecast, although the demands between the origin and the destination are difficult to accurately predict. In this paper, we assume that the trip generations of every...
One side constrained traffic assignment model is presented based on the local nearsighted user equilibrium principle by taking advantage of network dual equilibrium theorem. The traffic flow and travel time are regarded as a pair of dual variables. The analysis is started from the basic elements of network. At first, the dual relationships between the conservation conditions of node's flow and the...
According to the theories of traffic dynamics, traffic psychology and psychophysics, the process that drivers perceive leading car's movement through the distance changes between vehicles is explored, where just noticeable difference is introduced. The extreme cases for car-following behaviors are discussed and the range of the car-following distance and the relationship between the car-following...
In order to obtain the accurate and objective traffic state information to meet the demand of traffic guidance, and in view of the stochastic property and complexity of the traffic flow evolution on the urban road and the uncertainty of traffic state discrimination, an algorithm of Logistic regression for traffic state probability forecast is put forward based on the analysis of the mapping relationships...
Industry, government, and academia have started to adopt the technology roadmapping concept to setup their technology strategy, identify gaps and opportunities in their R&D activities. Automotive industry, facing fierce competition with continuous technological breakthroughs and improvements, should have roadmaps with respect to their company objectives that have flexible features so that organizations...
According to characteristics of the evaluation about optimization of bus scheduling, this paper puts forward an evaluation method based on the Discrete Hopfield Neural Network (DHNN). At the course of constructing DHNN, the authors have selected the effective time-use law, average transfer time, transport capacity match and operating profit as evaluation indicators about the bus scheduling, according...
Considering the coordination between vehicle and non-motorized, different traffic composition have different signal control operates at the urban road intersection. In view of the multi-objective property of urban traffic signal control, the paper presents a multi-objective signal timing optimization model with vehicle volume and the non-motorized transport number as the inputs and traveler delay,...
Short-term traffic flow prediction is a priority issue of intelligent transportation system. The accuracy of the prediction results directly affects the traffic control and management. Therefore, it is the key technology for the advanced traffic management information system. This paper briefly describes the concept of co-integration and error correction model, and then verifies the validity of the...
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