Effects of road network structure on the performance of urban traffic systems

Wu, Chao-Yun; Hu, Mao-Bin; Jiang, Rui; Hao, Qing-Yi

doi:10.1016/j.physa.2020.125361

Cited by 26 publications

(11 citation statements)

References 24 publications

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“…With the help of electronic maps, the total area of the surveyed territory is calculated [8,9]. The share of the road and track network from the area of the protected area is calculated:…”

Section: Formulasmentioning

confidence: 99%

Assessment of the development of the road and path network on the territory of the reserve park in order to reduce the anthropogenic impact on nature

Novikov

Sumarukova²,

Timoshkin

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The research is devoted to the study of the road and path network in the park Park “Brateevskaya Poima” which located in the south of Moscow. This research is important to solve the issues on the study of the development of digression. Based on the results obtained, it is necessary to develop a road and path network throughout the park in order to reduce the anthropogenic impact on nature in certain parts of the park. According to the GPS tracker, the total length of the road and path network for the Brateevskaya Poima reserve was 11.27 km. The area occupied by road-path network accounts for approximately 2% of the total park area. A schematic map was built for ranking the road-path network according to the width of the paths of the park “Brateevskaya Poima. The most uncommon paths are up to 1.5 m wide, with a total area of only 1350 m2. The only paths trodden by man and having earthen cover. The main advantage of the park in the field of road-path network was in that there were practically no trampled paths on the territory. Most of the paths were tiled for walking and asphalt for vehicles.

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“…With the help of electronic maps, the total area of the surveyed territory is calculated [8,9]. The share of the road and track network from the area of the protected area is calculated:…”

Section: Formulasmentioning

confidence: 99%

Assessment of the development of the road and path network on the territory of the reserve park in order to reduce the anthropogenic impact on nature

Novikov

Sumarukova²,

Timoshkin

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

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“…In formula (5), φ means the longitudinal adhesion coefficient of the tire, which is related to tire pattern, road roughness, vehicle speed, and other factors. t is the driver's response time.…”

Section: Establishment Of Road Capacity Assessment Modementioning

confidence: 99%

“…Taking Jinchang City in Gansu Province as an example, Yang [3] found that road traffic in small industrial cities suffers from insufficient urban road area, traffic infrastructure lagging behind the development of the city, imperfect road parking system, and slow development of public transportation. Tang and Zhang [4] also mentioned the problems of poor road infrastructure and backward traffic management, lack of facilities, and unsound institutions in road traffic of small towns, further illustrating the constraints of road structure on urban traffic development; meanwhile, Wu et al [5] studied the effects of rectangular urban network aspect ratio on traffic system dynamics based on cellular automata modeling, and used Macroscopic Fundamental Diagram (MFD) to examine the performance of the road network, and the maximum arrival rate and critical congestion density of the MFD were studied as two main indicators of the system performance. It is found that the arrival rate of the square network is maximum under the closed boundary condition, but the congestion critical density is relatively low.…”

Section: Introductionmentioning

confidence: 99%

The Traffic Capacity Variation of Urban Road Network due to the Policy of Unblocking Community

et al. 2021

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At present, urban traffic congestion is a common problem of urban development in China. Therefore, China’s government issued the policy of opening the gated communities in 2016, hoping to alleviate traffic pressure to some extent. But, at present, the quantitative empirical research on the effect of the policy implementation is less and more idealistic. In order to complete the leap from research on local isolated traffic capacity of static gated communities to research on global coupling traffic capacity of dynamic multilayer network and, to a certain extent, reflect the innovation of the research model and method, we make a quantitative analysis of the effect of the policy more consistent with the actual situation, which provides a quantitative management basis for the implementation of the policy. Based on literature review, this paper carried out two stages of research. Stage one consists of constructing traffic capacity assessment model—Road Capacity Assessment (RCA) model based on BPR (Bureau of Public Roads) impedance function from a simple local static perspective. Considering the factors such as delay of signalized intersection and travel time, through modeling analysis and empirical test, it is found that about 12% of local traffic capacity can be improved after open community. Stage two consists of constructing a global capacity model based on multilayer complex network coupling from the perspective of complex global dynamics. Considering the various network nodes of pedestrians, nonmotor vehicles, and other factors, we construct a multilayer complex network and dynamic superposition coupling. The empirical data show that the overall traffic capacity of the open community is improved by at least 11.3%. Finally, it can be concluded that a significant increase in the global traffic capacity of complex urban road networks means that the losses caused by traffic congestion will be reduced. In some first-tier cities, the direct monthly income of the open-gated community is as high as 230 million yuan, not to mention its overall economic, social, and environmental benefits.

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“…This article studies the impact of the character proportion of a square urban network on the dynamics of traffic systems. The application of road networks was observed using the Macroscopic Fundamental Diagram (MFD) [14]. Due to the significant increase in vehicles in modern decades, urban traffic congestion became increasingly severe.…”

Section: Literature Review 21 Overview Control Trafficmentioning

confidence: 99%

Traffic Control Prediction Design Based on Fuzzy Logic and Lyapunov Approaches to Improve the Performance of Road Intersection

2021

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Due to the increasing use of private cars for urbanization and urban transport, the travel time of urban transportation is increasing. People spend a lot of time in the streets, and the queue length of waiting increases accordingly; this has direct effects on fuel consumption too. Traffic flow forecasts and traffic light schedules were studied separately in the urban traffic system. This paper presents a new stable TS (Takagi–Sugeno) fuzzy controller for urban traffic. The state-space dynamics are utilized to formulate both the vehicle’s average waiting time at an isolated intersection and the length of queues. A fuzzy intelligent controller is designed for light control based upon the length of the queue, and eventually, the system’s stability is proved using the Lyapunov theorem. Moreover, the input variables are the length of queue and number of input or output vehicles from each lane. The simulation results describe the appearance of the proposed controller. An illustrative example is also given to show the proposed method’s effectiveness; the suggested method is more efficient than both the conventional fuzzy traffic controllers and the fixed time controller.

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Effects of road network structure on the performance of urban traffic systems

Cited by 26 publications

References 24 publications

Assessment of the development of the road and path network on the territory of the reserve park in order to reduce the anthropogenic impact on nature

Assessment of the development of the road and path network on the territory of the reserve park in order to reduce the anthropogenic impact on nature

The Traffic Capacity Variation of Urban Road Network due to the Policy of Unblocking Community

Traffic Control Prediction Design Based on Fuzzy Logic and Lyapunov Approaches to Improve the Performance of Road Intersection

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