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Determining the Macroscopic Fundamental Diagram from Mixed and Partial Traffic Data

Yangbeibei Ji, Mingwei Xu, Jie Li, Henk J Van Zuylen
2018 Promet (Zagreb)  
The macroscopic fundamental diagram (MFD) is a graphical method used to characterize the traffic state in a road network and to monitor and evaluate the effect of traffic management.  ...  The ratio of taxis in the total traffic was determined and used to convert taxi density to the density of all vehicles. This ratio changes over the day and between different links.  ...  In this diagram, the traffic state is characterized by the sum of the weighted average traffic flow and the sum of the weighted average traffic density.  ... 
doi:10.7307/ptt.v30i3.2406 fatcat:czqpj56tungphfn4i5yx5sfv3m

Table of contents

2019 2019 Sixth International Conference on Internet of Things: Systems, Management and Security (IOTSMS)  
Transactive energy on Hyperledger Fabric Traffic Characterization Using L-moment Ratio Diagrams Mihaela I. Chidean, Javier Carmona-Murillo, Rune H.  ...  Jacobsen, Qi Zhang 555 Experimental Study on Machine Learning with Approximation to Data Streams Zhang Fu, Jiani Jiang 561 Applying Ant Colony Optimization for Service Function Chaining in a 5G Network  ... 
doi:10.1109/iotsms48152.2019.8939263 fatcat:2aw6bffhhvbv5pwxgnjhhhthja

The Effectiveness NGN/IMS Networks in the Establishment of a Multimedia Session

Ibrahimov G. Bayram
2018 American Journal of Networks and Communications  
The subject of the study is multiservice communication network using the concept NGN (Next Generation Network) based on the open network architecture IMS (Internet Protocol Multimedia Subsystem), supporting  ...  A mathematical model for estimating the quality of communication services using a system бн N G GI / 1 / / based on the theory of diffusion approximation is proposed.  ...  The Diagram Functioning of the Researched Model of the Multiservice NGN/IMS Networks Based on the analysis of quality operation of the multiservice NGN/IMS c networks use of systems and protocols SIP terminals  ... 
doi:10.11648/j.ajnc.20180701.11 fatcat:sxyvmp2lqbbr3l5bnwunqv2sz4

Active traffic management on road networks: a macroscopic approach

A. A. Kurzhanskiy, P. Varaiya
2010 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences  
Active traffic management workflow diagram. project conducted at Berkeley since 2006 (http://path.berkeley.edu/topl).  ...  The ATM workflow diagram is presented in figure 1 .  ...  Each link lL is characterized by its length Dx l , number of lanes k l and the fundamental diagram (capacity F l , free-flow speed v l and congestion wave speed w l , figure 2), 1 which takes into 1  ... 
doi:10.1098/rsta.2010.0185 pmid:20819824 fatcat:4lprwfjmyjabbpoqcyn4obmlee

Модель автомобільного артеріального трафіку за даними потокового GPS-зонду (engl.)

Нух Таха Насіф
2017 Наука і техніка Повітряних Сил Збройних Сил України  
Arterial network represents additional tasks of modeling and estimation, because flow physics, which regulates them is more difficult because of the traffic lights (usually with unknown cycles), intersections  ...  In this article the model of arterial traffic on the basis of GPS-sample electrode sparse data is developed.  ...  Variable conditions of the flowTraffic conditions variables describe the traffic conditions, which characterize dynamic of the traffic in the network.  ... 
doi:10.30748/nitps.2017.28.17 fatcat:okpn5yyp3rbbtnhij6f7apzuku

A Novel Approach to Calculate the Spatial–Temporal Correlation for Traffic Flow Based on the Structure of Urban Road Networks and Traffic Dynamic Theory

Mao Du, Lin Yang, Jiayu Tu
2021 Sensors  
of the road network.  ...  Therefore, to provide more reasonable correlation information between roads, this paper analysed the influence mechanism of urban traffic based on the traffic dynamic model, and two parameters, traffic  ...  L ω τ j , τ can be calculated as: where τ 0 is the moment when the traffic flow between roads becomes 0. τ 2 is the moment when the traffic wave passes out of road j. ω j is the wave speed on road j.  ... 
doi:10.3390/s21144725 fatcat:uehssxbdcrffrguc4ioli3vk7u

Ultra-Wideband WDM Optical Network Optimization

Stanisław Kozdrowski, Mateusz Żotkiewicz, Sławomir Sujecki
2020 Photonics  
The analysis is carried out for realistic networks of different dimensions and traffic demand sets.  ...  The developed optimization tools are used to study the ultra-wideband wavelength division multiplexed network performance when compared with the traditional C-band wavelength division multiplexed networks  ...  Funding: Check carefully that the details given are accurate and use the standard spelling of funding agency names at https://search.crossref.org/funding, any errors may affect your future funding.  ... 
doi:10.3390/photonics7010016 fatcat:rrjmyji5crerznccxiiogxnmpi

The impact of the reactive functions on the LAN interconnection by a Frame-Relay Net [chapter]

T. Atmaca, T. Czachórski
1996 Data Communications and their Performance  
This article proposes the use of a diffusion approximation to model the effect of preventive and reactive functions implemented in a Frame-Relay network interconnecting LAN networks.  ...  or a threshold policy is used to manage the queue.  ...  n-l(X)) Figure 8 8 Block diagram of feedback control system using BECN bit. queue length or the loss ratio changing in time), the transition function of the system is Ki(s) = l;;T., i.e. the output signal  ... 
doi:10.1007/978-0-387-34942-8_18 fatcat:ymass4rrhvf23ecdxktghon7aq

Stochastic Admission Control for Quality of Service in Wireless Packet Networks [chapter]

Majid Ghaderi, Raouf Boutaba, Gary W. Kenward
2005 Lecture Notes in Computer Science  
in a packet-switched wireless cellular network.  ...  distributed call admission control scheme called PFG, which maximizes the wireless channel utilization subject to a predetermined bound on the call dropping and packet loss probabilities for variable-bit-rate traffic  ...  Traffic Characterization Let r n denote the packet generating process of an individual call n.  ... 
doi:10.1007/11422778_105 fatcat:2r77dtjwzfag7libn2uyxatxgq

Analysis of Non-Gaussian Nature of Network Traffic and its Implication on Network Performance [article]

Tatsuya Mori, Ryoichi Kawahara, Shozo Naito
2002 arXiv   pre-print
We analyzed the non-Gaussian nature of network traffic using some Internet traffic data.  ...  We conclude that in a network hat has greedy flows with non-negligible probability, a traffic controlling scheme or bandwidth design that considers non-Gaussian nature is essential.  ...  This means that it is essential to consider the non-Gaussian nature of network traffic in order to characterize traffic variability.  ... 
arXiv:cs/0209004v1 fatcat:x3sh7fbkijhqbed6t7xctlqiwq

Intersection Redesign for Network Resilience and Safety

Antonio Pratelli, Pietro Leandri, Rosaria Aiello, Reginald Roy Souleyrette
2021 Promet (Zagreb)  
The methodology uses a calibrated microscopic traffic model (using Aimsun™) whereby average delay at intersection approaches are estimated by an analytical model.  ...  This paper describes a procedure for improving the resilience of roadway networks. A methodology is outlined that develops a time-dependent and performance-based resilience index.  ...  d v v d v d v approach l r l l r r $ $ = + + (5) where: d approach -delay time at approach d l , d r -delays for the left and right lanes. v l , v r -entry flows for the left and right lanes.  ... 
doi:10.7307/ptt.v33i2.3554 fatcat:fmis7r2rvbeqrhy4ref64nhjwm

Heavy-traffic-optimal scheduling with regular service guarantees in wireless networks

Bin Li, Ruogu Li, Atilla Eryilmaz
2013 Proceedings of the fourteenth ACM international symposium on Mobile ad hoc networking and computing - MobiHoc '13  
This motivates us to investigate whether satisfactory service regularity and low mean-delay can be simultaneously achieved by the RSG Algorithm by carefully selecting its parameter α.  ...  To the best of our knowledge, this is the first work that provides regular service to all links while also achieving heavy-traffic optimality in mean queue-lengths. 1 We say an = O(bn) if there exists  ...  ) including delay, packet delivery ratio, and jitter.  ... 
doi:10.1145/2491288.2491304 dblp:conf/mobihoc/LiLE13 fatcat:2sbvvwu66bhq7gt3qoo5bqfahm

A Realistic Approach to the Traffic Flow Behaviors by Cellular Automata Models

S. Rajeswaran, S. Rajasekaran
2012 International Journal of Computer Applications  
Higher moments of traffic flow have been examined and their effect on overall traffic performance has been evaluated.  ...  In the current paper, the usefulness of CA to traffic flow modeling has been determined.  ...  is useful for application to large scale traffic networks.  ... 
doi:10.5120/8940-3110 fatcat:rhxeieatdfaxdhusjptyi4cg3u

Impact of Road Traffic Tendency in Europe on Fatigue Assessment of Bridges

Pietro Croce
2020 Applied Sciences  
Moerdijk (NL) traffic, characterized by a high percentage of LHVs; and the Igualada (ES) traffic.  ...  The results demonstrate that the Auxerre traffic is still the most onerous; that the Moerdijk traffic is generally more severe than the Igualada traffic, and that the fatigue load models of Eurocode do  ...  stiffness EJ (Figure 6b); • case study no. 3: bending moment at midspan of a three-span continuous beams with span ratios 0.8:1.0:0.8, having constant bending stiffness EJ (Figure 6c).  ... 
doi:10.3390/app10041389 fatcat:dfxouajjirdu7czwz3ataxv44y

Models and Methods for Improving Performance of Wireless Computer Networks Based on the Decomposition of Lower Layers of the OSI Reference Model

Andriy Dudnik, Taras Shevchenko National University of Kyiv, 60 Volodymyrska str., Kyiv, 01033, Ukraine, Ivan Bakhov, Oleksandr Makhovych, Yulia Ryabokin, Oleksandr Usachenko
2022 International Journal of Emerging Technology and Advanced Engineering  
IS resources depending on traffic and user priority.  ...  A method to improve the performance of networks is suggested, which functionally combines the physical and network layers, which improves its efficiency in marginal reception areas almost twice.  ...  Based on the obtained results, it was found that the delay time ratio corresponds to the actually available ratios of network parameters. A model of infrared traffic has been considered.  ... 
doi:10.46338/ijetae0122_15 fatcat:s5irrxx22jhv7nfbdn7hmpikyq
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