Speed guidance and transit signal control method for advanced public transportation system

Liang, Hailun; Wei, Jiacheng

doi:10.1109/ictis.2017.8047831

Cited by 10 publications

(5 citation statements)

References 8 publications

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“…In order to increase the speed of public transport, it is suggested that priority bus lanes should be extended to form bus lane corridors, particularly in the case of the main trunk roads in the central urban area. In addition, an advanced public transport system (APTS) could improve the real-time scheduling and management of the public transport system, and ultimately increase its overall running speed (Liang and Wei, 2017). Therefore, an APTS with several sub-systems, such as vehicle monitoring and dispatching systems, and a comprehensive scheduling management system could be introduced in Shenyang in order to improve the operating efficiency and running speed of public transport.…”

Section: Improving Public Transport Service Qualitymentioning

confidence: 99%

Public transport equity in Shenyang: Using structural equation modelling

Wang¹,

Cao

Liu

et al. 2022

Research in Transportation Business & Management

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In China, with the rapid development of urbanisation, the contradiction between supply and demand has become increasingly severe, particularly in large and medium-sized cities. Improving public transport equity can help to reduce the social exclusion of lower-income and socially vulnerable groups in relation to the urban transport system, and guarantee that public transport systems are given priority in terms of development. Using the concept of transport-related social equity, this study aims to explore the effects of public transport equity in relation to the quality of public transport, public participation, and public transport-related policy using Shenyang as a case study. Data are analysed using Structural Equation Model (SEM). Our findings show that the three latent variables of accessibility, affordability, and social impacts can be seen as representing the main characteristics of public transport equity; while improvements in public transport quality, public participation, and public transport-related polices play a significant role in reducing public transport inequity. Moreover, the findings indicate that public participation has direct, significant, positive influences on public transport quality and public transport-related policies. In terms of policy implications, we suggest that policies designed to improve public transport service quality, extend public transport fare concessions, and promote public participation in the public transport policy decision-making process should be given priority in the next round of urban comprehensive planning in order to reduce public transport-related social inequity in Shenyang and China more generally.

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Section: Improving Public Transport Service Qualitymentioning

confidence: 99%

Public transport equity in Shenyang: Using structural equation modelling

Wang¹,

Cao

Liu

et al. 2022

Research in Transportation Business & Management

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show abstract

“…Te simulation results show that the strategy reduces the delay of the bus and improves the punctuality of the bus. Liang and Wei [41] proposed a single-intersection bus speed guidance and signal priority control method, and the simulation results show that this method can reduce the average passenger delay. Namazi and Taghavipour [42] proposed a speed guidance method under the CV environment.…”

Section: Literature Reviewmentioning

confidence: 99%

Research on the Platoon Speed Guidance Strategy at Signalized Intersections in the Connected Vehicle Environment

Ren

Wang

Yin

et al. 2023

Journal of Advanced Transportation

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The development of connected vehicle (CV) technology has created conditions for improving the traffic efficiency of intersections and provided support for more effective speed guidance at signalized intersections. First, this paper proposes a platoon speed guidance strategy to reduce the fuel consumption and delay of the platoon passing through the intersection and smooth traffic oscillation, which includes constant speed guidance, deceleration guidance, acceleration guidance, and stop guidance. Then, the optimal speed calculation method is designed, including the calculation of the platoon’s passable period and maximum number of passing vehicles, the platoon restructure method, the analysis of the trajectory of the vehicles, and the calculation of the optimal trajectory of the platoon based on the goal of minimum fuel consumption and delay. Finally, eight different intersection scenarios are designed to simulate the proposed platoon speed guidance strategy. The results show that the platoon speed guidance strategy can effectively reduce the fuel consumption and delay of the platoon passing through the intersection and smooth traffic oscillation. In addition, the influences of queue length and CV penetration rate on the platoon speed guidance strategy are also discussed. The results show that when the queue length affects the passable period, the improvement in fuel consumption, drive time, and delay will decrease as the queue length increases. And as the penetration rate increases, the strategy becomes increasingly effective in reducing the delay and fuel consumption of the platoon in general.

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“…Similar conclusions are drawn in Refs. 3,[14][15][16][17] Considering the signal timing 18,19 information of intersections, a trajectory planning model is proposed in. 20 The model minimizes the weighted driving time and fuel consumption as the objective function, using speed and position as inputs to optimize the model.…”

Section: Introductionmentioning

confidence: 99%

Trajectory planning for autonomous vehicle based on window-constrained Pearl model

Liu

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part D:

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Speed guidance is a significant application in driver assistance system or driverless automated system. Considering the traditional Pearl model-based trajectory planning, this paper proposes an improved method based on window constraints to enhance the rationality at intersection positions. To solve the problem, where the slopes of traditional time-distance Pearl curve at the two boundaries generate relatively low values and which is not in accordance with the actual situation, a new window constraint is used to guide the vehicle passing through the intersection at a high speed. Regarding the new window constraints, together with the maximum speed, tolerating accelerated speed constraints, and traffic signal length constraints, a multi-variable and single objective optimization improved nonlinear programing scheme is applied to obtain the most comfort trajectory of passengers for speed guidance. Simulation results show that, the proposed method presents better performance in traveling time and trajectory smoothness compared with the traditional method under different initial vehicle speeds at upstream intersections and signal offset cases.

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Speed guidance and transit signal control method for advanced public transportation system

Cited by 10 publications

References 8 publications

Public transport equity in Shenyang: Using structural equation modelling

Public transport equity in Shenyang: Using structural equation modelling

Research on the Platoon Speed Guidance Strategy at Signalized Intersections in the Connected Vehicle Environment

Trajectory planning for autonomous vehicle based on window-constrained Pearl model

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