Enhanced variable bandwidth progression optimisation model in arterial traffic signal control

Shirvani, Mohamad Javad; Maleki, Hamid Reza

doi:10.1049/iet-its.2015.0061

Cited by 7 publications

(5 citation statements)

References 23 publications

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“…The numerical tests show that both models have the potential to produce coordination plans. Shirvani and Maleki [15] developed a new mixed integer variable bandwidth optimization model, in which the green splits, junctions' offsets, cycle length, and left turn phase sequences pattern are simultaneously optimized. It is worth mentioning that, in their study, arterial traffic signals were set based on fully acceptable or unacceptable thresholds for each arterial link-specific bandwidth and green split, which are specified by traffic engineers.…”

Section: Literature Reviewmentioning

confidence: 99%

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Arterial Offset Optimization Considering the Delay and Emission of Platoon: A Case Study in Beijing

Ding

Chen

et al. 2019

Sustainability

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The effective setting of offsets between intersections on arterial roads can greatly reduce the travel time of vehicles through intersections. However, coordinated control systems of urban arterial roads often do not achieve the desired effect. On the contrary, they are very likely to increase the traffic congestion on arterial roads, resulting in more delays of the platoon with more exhaust emissions, if the coordinated control system does not have effective settings. Meanwhile, taking into account increasing environmental pollution, measures are needed to solve the conflict between environmental and traffic management. Thus, in order to ensure the smooth flow of urban arterial roads while considering the environment, this paper develops a bi-objective offset optimization model, with reducing delays of the platoon on arterial roads as the primary objective, and reducing exhaust emissions as the secondary objective. The proposed bi-objective model is based on the division of platoon operating modes on arterial roads, and more pollutant types, including NOx, HC, and CO, are considered when measuring environmental impact. Further, the modified hierarchical method, combining the branch and bound approach with the introductions of a relaxation coefficient, is employed to solve the model. By introducing a relaxation coefficient, the modified hierarchical method overcomes the defects of the traditional one. Finally, Xi Dajie Road in Beijing was taken as an example. The results showed that the bi-objective offset optimization model, considering both the delays and emissions of the platoon reduced delays by up to 20% and emissions by 7% compared with the existing timing plan. If compared with the offset optimization model considering delays only, such a model increases delays no more than 3% and reduces emissions by 6%.

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Section: Literature Reviewmentioning

confidence: 99%

“…Substitute Equations (14) and (15) into Equation (16). The eastbound delay between intersection P i and P i+1 is derived, as shown in Equation 17.…”

Section: The Front Part Of Platoon Is Blockedmentioning

confidence: 99%

Arterial Offset Optimization Considering the Delay and Emission of Platoon: A Case Study in Beijing

Ding

Chen

et al. 2019

Sustainability

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“…To alleviate urban traffic congestion [2], improving the efficiency of signal control and decreasing traffic delays and parking rate are imperative [3]. Many scholars have exerted much effort on arterial coordination control and obtained numerous achievements [4], but most of the proposed models have similar drawbacks. For example, discrete situation of traffic flow is ignored, and the calculation consumes much time [5].…”

Section: Introductionmentioning

confidence: 99%

Arterial Control Against Lane Occupancy Accidents Based on Discrete Traffic Flow Model

2020

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Due to oversaturated traffic condition, few models are capable of describing the complexity and control strategies are difficult to design.This paper proposes an arterial coordination control for unsaturated and oversaturated traffic condition via discretization analysis model. The Robertson discrete formula is introduced to describe the discrete relationship between the upstream and downstream flow. The downstream vehicle arrival rate satisfies the cyclical relationship when the turning traffic flow is low. On this basis, the traffic parameters of the upstream and downstream can be calculated by the 'look-up table' method instead of the 'recursion' method in using the periodic array to save the intermediate variables in the model. As a result, the computation time significantly decreases. For unsaturated situation, delays are accumulated in each time period and reduced through adjusting offsets. For oversaturated traffic condition caused by lane occupancy accidents, green time is optimized by genetic algorithm after the road capacity decline is estimated. Simulation experimental results verify the effectiveness of the control strategies and the practicability of the proposed model.

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“…The original multiband model was further developed by Stamatiadis and Gartner to handle large‐scale urban grid networks [6], and some works extended it to multi‐phase, diverging diamond interchange corridors and heterogeneous traffic conditions [20–22]. Moreover, some dynamic bandwidth analysis methods have been presented for semi‐actuated coordinated signal systems on arterial streets; these methods reproduce actual dynamic bandwidth durations using closed loop signal data [23, 24].…”

Section: Introductionmentioning

confidence: 99%

Bandwidth optimisation and parameter analysis at two adjacent intersections based on set operations

Yuan

et al. 2020

IET Intelligent Transport Systems

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Enhanced variable bandwidth progression optimisation model in arterial traffic signal control

Cited by 7 publications

References 23 publications

Arterial Offset Optimization Considering the Delay and Emission of Platoon: A Case Study in Beijing

Arterial Offset Optimization Considering the Delay and Emission of Platoon: A Case Study in Beijing

Arterial Control Against Lane Occupancy Accidents Based on Discrete Traffic Flow Model

Bandwidth optimisation and parameter analysis at two adjacent intersections based on set operations

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