Stochastic modeling of breakdown at freeway merge bottleneck and traffic control method using connected automated vehicle

Han, Youngjun; Ahn, Soyoung

doi:10.1016/j.trb.2017.11.007

Cited by 52 publications

(31 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e data characteristics in this work provided some references in data simulation. In recent works, the researches of car-following model were basically related to tra c control strategy and automated vehicle [26][27][28]. Among them, the work by Han provided a novel breakdown probability model based on extending Newell's model, and a tra c control method to obtain uniform spacing was developed considering low passing rate of connected automated vehicle technology.…”

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Defining Highway Node Acceptance Capacity (HNAC): Theoretical Analysis and Data Simulation

Liu

Dong

et al. 2020

Journal of Advanced Transportation

View full text Add to dashboard Cite

A new concept of Highway Node Acceptance Capacity (HNAC) is proposed in this paper inspired by a field data observation. To understand HNAC in microscopic view, boundary condition of successful merging is found using car-following behaviours and lane-changing rules, which could also explain traffic oscillations. In macroscopic view, linear positive relationship between HNAC and background traffic volume is obtained based on moving bottleneck. To determine the explicit form of the relationship, data simulation considering car-following behaviours and traffic flow theory is used. In the results, the synchronization phenomenon of oscillation in on-ramp (with respect to main road) and intersected road is found. The explicit equation of HNAC is determined based on standard deviation and correlation coefficient analysis, and also proved to be accurate with model validation, which is helpful in studies related to propagation mechanism of traffic emergencies on highway network.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

“…In their work, the de nition of moving bottleneck was given, and the model of passing rate, queue behaviour, moving queue growth rate were also provided. ese results were widely used and developed in related researches [28,[37][38][39]].…”

Section: Literature Reviewmentioning

confidence: 99%

Defining Highway Node Acceptance Capacity (HNAC): Theoretical Analysis and Data Simulation

Liu

Dong

et al. 2020

Journal of Advanced Transportation

View full text Add to dashboard Cite

show abstract

“…Han et al proposed a signal control priority passing method [1]. This method solved the problem of bus priority in urban roads.…”

Section: State Of the Artmentioning

confidence: 99%

Exploration of Real-Time Traffic Information System Based on Big Data Analysis

Huang¹

2018

Proceedings of the 2018 International Symposium on Communication Engineering &Amp; Computer Science (CECS 2018)

View full text Add to dashboard Cite

In order to solve the problem brought about by traffic congestion to people's daily life, this experiment uses the effective combination of intelligent transportation and vehicle networking technology, and proposes the real-time traffic information system based on the vehicle networking end-tube-cloud architecture for mass real-time traffic data. First, the overall architecture of the system is designed and analyzed, and then the related technology of traffic data perception and acquisition is introduced. Secondly, the mode of real-time traffic information data acquisition based on floating car and the characteristics of the initial traffic data are introduced, and a suitable data storage format is designed in accordance with the characteristics of original traffic data collected. Finally, the test is carried out according to the spatiotemporal characteristics of traffic data. The results show that the algorithm used can effectively repair data, and the data repair performance is obviously better than time and space two data repair models. Through the relevant technology, the current road traffic conditions are obtained, and then the information is transferred to traffic management departments and travel personnel. In this way, it can provide the road condition for the travellers real-time and accurately, and help travellers reasonably choose the travel routes, thus alleviating traffic congestion. In a word, real-time traffic information can help traffic management departments to do a good job in traffic management.

show abstract

“…Han, Chen, and Ahn (2017) used connected vehicles to control the inflow at a recurrent one-lane bottleneck in such a way that the maximum throughput was guaranteed and the capacity drop was avoided. Han and Ahn (2018) proposed a method for calculating the probability of a breakdown in real time at a merge bottleneck based on the observed headways. Lower speed limits were applied to connected vehicles and on variable message signs to reduce the probability of a breakdown.…”

Section: Introductionmentioning

confidence: 99%

“…Lower speed limits were applied to connected vehicles and on variable message signs to reduce the probability of a breakdown. Hence, connected vehicles have been shown to be useful for data collection and to estimate the traffic state, which is used as input to the VSL system (Hegyi et al 2013;Kattan et al 2015;Khondaker and Kattan 2015;Han and Ahn 2018), and for control of the speed of individual vehicles as part of the control strategy of the VSL system (Müller, Carlson, and Kraus 2016;Wang et al 2016;Han, Chen, and Ahn 2017;Han and Ahn 2018).…”

Section: Introductionmentioning

confidence: 99%

Bottleneck mitigation through a variable speed limit system using connected vehicles

Grumert

Tapani

2018

Transportmetrica A: Transport Science

View full text Add to dashboard Cite

Variable speed limit (VSL) systems are used to improve the traffic conditions by adjusting the speed limits based on the current traffic situation. Advances in vehicle technology have made it possible to use connected vehicles in VSL systems. Connected vehicles can continuously transmit information about their speed and location, which can be used to estimate the current traffic conditions at arbitrary locations. In this study, we propose a VSL system based on connected vehicles. The aim is to also allow application of VSLs for non-recurrent bottleneck mitigation at arbitrary locations, unlike today's systems which require densely placed detectors or are limited to beforehand known bottleneck locations. The proposed system is evaluated by microscopic traffic simulation. The results indicate that the VSL system manage to improve traffic efficiency in a simulated incident scenario. ARTICLE HISTORY

show abstract

Stochastic modeling of breakdown at freeway merge bottleneck and traffic control method using connected automated vehicle

Cited by 52 publications

References 48 publications

Defining Highway Node Acceptance Capacity (HNAC): Theoretical Analysis and Data Simulation

Defining Highway Node Acceptance Capacity (HNAC): Theoretical Analysis and Data Simulation

Exploration of Real-Time Traffic Information System Based on Big Data Analysis

Bottleneck mitigation through a variable speed limit system using connected vehicles

Contact Info

Product

Resources

About