Evaluating Operational Features of Multilane Turbo Roundabouts with an Entropy Method

Pan, Binghong; Chai, Hu; Liu, Juan; Shao, Yang; Liu, Shangru; Zhang, Ranyang

doi:10.1061/jtepbs.0000684

Cited by 2 publications

(3 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sustainable development has been pursued in terms of road design. Some scholars have reduced pollutant emissions and improved congestion and air quality by improving traditional intersections [44][45][46]. Xie believes that improving the capacity of the road itself is the most effective way to relieve congestion [13].…”

Section: Small Spacing Interchange Improvement Methodsmentioning

confidence: 99%

“…VISSIM is a microscopic traffic simulation software that efficiently and precisely represents various road design configurations and their operational dynamics. It is commonly used in the evaluation of urban road intersections and the design of interchange entrances and exits [13,45,46]. Therefore, to investigate the impact of different design forms of auxiliary lanes on traffic efficiency and safety, this study uses VISSIM to simulate the four design alternatives in Figure 4.…”

Section: Establishing the Modelmentioning

confidence: 99%

See 1 more Smart Citation

Research on Efficient Operation for Compound Interchange in China from an Auxiliary Lanes Configuration Aspect

Tian,

Shi,

Yang

et al. 2023

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Interchanges are the key nodes of the freeway. Due to the existence of weaving behavior, the traffic flow situation is more complicated for small spacing interchanges. Continuous auxiliary lanes are usually used to connect the entrance and exit to form a compound interchange to reduce the interference of weaving behavior. However, when it comes to the design of auxiliary lane forms, China lacks relevant design specifications and research in this area. As a result, there often exists the phenomenon of mismatch between the design form and the traffic volume. In this paper, we took a compound interchange in Xi’an as the research object, proposing four auxiliary lane design schemes and using VISSIM (2022 student) software to establish the simulation model. Additionally, various traffic conditions were simulated through sensitivity analysis. Finally, using the factor analysis method and entropy method, we comprehensively assigned weights to the indexes. By obtaining the weighted scores for various schemes, it became possible to determine the applicability of each scheme under different traffic conditions. The results indicate that the gradient auxiliary lane can be applied to most traffic conditions and has a smaller land occupation than the traditional design, which is an optimization and improvement for the traditional design form.

show abstract

Section: Small Spacing Interchange Improvement Methodsmentioning

confidence: 99%

Section: Establishing the Modelmentioning

confidence: 99%

Research on Efficient Operation for Compound Interchange in China from an Auxiliary Lanes Configuration Aspect

Tian,

Shi,

Yang

et al. 2023

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…The core of the CE method, which aims to assign weights to indicators with different amounts of information, has been successfully applied in various fields, including economics [32], medicine [33], environment [34], and transportation [27]. Among those, the entropy method, which determines the weights based on the variability of indicators, is the most frequently used type of method [35]. Inevitably, however, the entropy method also possesses certain limitations as it ignores the correlations between indicators.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Performance of Multilane Expressway Exit Design and a Traffic Organization Strategy Based on VISSIM Micro-Simulation and a Comprehensive Evaluation Method

2023

Self Cite

View full text Add to dashboard Cite

Frequent consecutive lane changes and the barrier effect produced by trucks can always contribute to rapid access to the capacity bottleneck at expressway exits, thereby reducing operational performance. This paper proposes to retrofit the conventional interchange design to reduce lane changes and compares them with conventional design and passenger vehicle and truck separation (PVTS) design from multiple fields via VISSIM numerical simulation, which is developed and calibrated with traffic data collected on the eight-lane expressway in China at four levels of service (LOS). Comprehensive evaluation (CE) results reveal that the PVTS strategy improves operational performance by 10–20% at multilane expressway exits, while lane separation around interchanges also yields a similar gain. However, ramps on both the left and right sides show less effective improvement and are even negative at LOS-A and LOS-B. All PVTS and improved designs produce a better comprehensive improvement ratio with a LOS decrease, and improved designs achieve optimal performance below LOS-B with construction cost taken into consideration.

show abstract

Evaluating Operational Features of Multilane Turbo Roundabouts with an Entropy Method

Cited by 2 publications

References 40 publications

Research on Efficient Operation for Compound Interchange in China from an Auxiliary Lanes Configuration Aspect

Research on Efficient Operation for Compound Interchange in China from an Auxiliary Lanes Configuration Aspect

Understanding the Performance of Multilane Expressway Exit Design and a Traffic Organization Strategy Based on VISSIM Micro-Simulation and a Comprehensive Evaluation Method

Contact Info

Product

Resources

About