Four-Way Stop or Traffic Lights? An Illustration of the Modeling Process

Interstation travel speed is an important indicator of the running state of hybrid Bus Rapid Transit and passenger experience. Due to the influence of road traffic, traffic lights and other factors, the interstation travel speeds are often some kind of multi-peak and it is difficult to use a single distribution to model them. In this paper, a Gaussian mixture model charactizing the interstation travel speed of hybrid BRT under a Bayesian framework is established. The parameters of the model are inferred using the Reversible-Jump Markov Chain Monte Carlo approach (RJMCMC), including the number of model components and the weight, mean and variance of each component. Then the model is applied to Guangzhou BRT, a kind of hybrid BRT. From the results, it can be observed that the model can very effectively describe the heterogeneous speed data among different inter-stations, and provide richer information usually not available from the traditional models, and the model also produces an excellent fit to each multimodal speed distribution curve of the inter-stations. The causes of different speed distribution can be identified through investigating the Internet map of GBRT, they are big road traffic and long traffic lights respectively, which always contribute to a main road crossing. So, the BRT lane should be elevated through the main road to decrease the complexity of the running state.

Download Full-text

INTELLIGENT OPTIMAL CONTROL OF URBAN TRAFFIC LIGHTS BASED ON FUZZY CONTROL

Telecommunications and Radio Engineering ◽

10.1615/telecomradeng.v79.i7.70 ◽

2020 ◽

Vol 79 (7) ◽

pp. 613-621

Author(s):

Y. H. Zhao ◽

R. X. Li ◽

J. Li

Keyword(s):

Optimal Control ◽

Fuzzy Control ◽

Urban Traffic ◽

Traffic Lights

Download Full-text

Modeling of Self-Induced Vibrations that Occur During the Machining Process of Casting Patterns with the Use of The Fuzzy-Neural Networks Method

Archives of Metallurgy and Materials ◽

10.2478/amm-2013-0090 ◽

2013 ◽

Vol 58 (3) ◽

pp. 871-875

Author(s):

A. Herberg

Keyword(s):

Neural Networks ◽

Control System ◽

Network Structure ◽

Fuzzy Systems ◽

Fuzzy Neural Networks ◽

Cnc Machining ◽

Machining Process ◽

Modeling Process ◽

Fuzzy Neural ◽

Takagi Sugeno

Abstract This article outlines a methodology of modeling self-induced vibrations that occur in the course of machining of metal objects, i.e. when shaping casting patterns on CNC machining centers. The modeling process presented here is based on an algorithm that makes use of local model fuzzy-neural networks. The algorithm falls back on the advantages of fuzzy systems with Takagi-Sugeno-Kanga (TSK) consequences and neural networks with auxiliary modules that help optimize and shorten the time needed to identify the best possible network structure. The modeling of self-induced vibrations allows analyzing how the vibrations come into being. This in turn makes it possible to develop effective ways of eliminating these vibrations and, ultimately, designing a practical control system that would dispose of the vibrations altogether.

Download Full-text

Channel characteristics in the LED traffic lights to vehicles communications

Future Communication Technology ◽

10.2495/icct130861 ◽

2014 ◽

Author(s):

Jinguo Quan ◽

Weihao Liu ◽

Shuang Jin ◽

Yan Zhang

Keyword(s):

Traffic Lights ◽

Channel Characteristics

Download Full-text

Modeling Process of Traffic Safety Terminology with the iglos Software - A Methodological and Terminological Approach

Athens Journal of Τechnology & Engineering ◽

10.30958/ajte.1-4-3 ◽

2014 ◽

Vol 1 (4) ◽

pp. 263-274

Author(s):

Ayşe Yurdakul ◽

Eckehard Schnieder

Keyword(s):

Traffic Safety ◽

Modeling Process

Download Full-text

Perancangan Sistem Kontrol Lampu Lalulintas Cerdas Dengan Menggunakan Mikrokontroler dan Kamera

Jurnal MIPA ◽

10.35799/jmuo.8.3.2019.26198 ◽

2019 ◽

Vol 8 (3) ◽

pp. 200

Author(s):

Tjerie Pangemanan ◽

Arnold Rondonuwu

Keyword(s):

Real Time ◽

Digital Image ◽

Red Light ◽

Green Light ◽

Processing Method ◽

Traffic Lights ◽

Traffic System ◽

Road Users ◽

Adjustment System ◽

System Time

Masalah lalu lintas merupakan salah satu masalah yang sangat sulit diatasi dengan hanya menggunakan system waktu (timer). Oleh sebab itu diperlukan suatu system pengaturan otomatis yang bersifat real-time sehingga waktu pengaturan lampu lalu lintas dapat disesuaikan dnegan keadaan di lapangan. Penelitian ini bertujuan mengembangkan suatu simulasi sistem yang mampu mengestimasi panjang antrian kendaraan menggunakan metoda pengolahan citra digital hanya dengan menggunakan satu kamera untuk dijadikan parameter masukan dalam menghitung lama waktu nyala lampu merah dan lampu hijau. Oleh karena itu, sistem lalulintas sangatlah diperlukan, sebagai sarana dan prasarana untuk menjadikan lalulintas lancar, aman, bahkan sebagai media pembelajaran disiplin bagi masyarakat pengguna jalan raya. Penelitian ini penulis menggunakan sistem pengontrolan berbasis citra digital dimana camera sebagai sensor. Untuk aplikasi dari semua metode dalam penelitian ini digunakan Microcontroller AurdinoTraffic problems is one of the problems that is very difficult to overcome by only using the system time (timer). Therefore we need an automatic real-time adjustment system so that the time settings for traffic lights can be adjusted according to the conditions on the ground. This study aims to develop a system simulation that is able to estimate the length of the vehicle queue using a digital image processing method using only one camera to be used as input parameters in calculating the length of time the red light and green light. Therefore, the traffic system is very necessary, as a means and infrastructure to make traffic smooth, safe, even as a medium for disciplined learning for road users. In this study the authors used a digital image-based control system where the camera as a sensor. For the application of all methods in this study, Aurdino Microcontroller is used

Download Full-text

Complex Solution of Ecological and Economic Problems of Traffic Jams

Mechanism of an economic regulation ◽

10.21272/mer.2019.86.01 ◽

2019 ◽

pp. 6-15

Author(s):

Oleksandr M. Matsenko ◽

Yaroslav S. Kovalev ◽

Olena M. Tkachenko ◽

Yaroslava V. Chorna

Keyword(s):

Traffic Control ◽

Motor Vehicle ◽

Motor Vehicles ◽

Water Runoff ◽

Negative Consequences ◽

Traffic Lights ◽

Economic Problems ◽

Traffic Jams ◽

Economic Sphere ◽

Flows Over Time

The article explores the congestion level in traffic of motor vehicles and its negative environmental and economic consequences in case of Kiev. The amount of pollution from traffic jams in Kiev and the number of vehicles which got into them in 2009-2018 is analyzed. The loss of earnings on the side of automobile owners from their standby are calculated with corresponding quantitative expressions found and described. For the course of the research, the methods of system-structural and comparative analysis were used for analyzing the environmental and economic problems of modern automobile systems; methods of formal logical analysis were used for substantiating the innovative infrastructure of transport routes. Separately economic and statistical methods were used in the study for trends development, structure analysis, and estimation of the influence of road congestion on the environmental and economic sphere. Pearson test has indicated a close relationship between the number of cars in Kiev and the number of values from traffic jams in environmental and economic sphere. Solutions to this problem are offered in forms of automated traffic control systems, improvisation of organizational and technical methods for the distribution of traffic flows over time, namely reverse traffic, road junctions, smart traffic lights, road extension, and the transition to alternative modes of transport. In all countries of the world there are new research methods that affect pollutants from motor vehicles. It is proved that they are forced by the recipients. In addition, landscaping can improve landscape design, reduce greenhouse gas emissions, surface water runoff and noise pollution. In this regard the policy implication of the research are aimed to eliminate the negative consequences from the use of vehicles during traffic jams, and the necessary number of trees for planting in Kiev is calculated. Key words: motor transport, congestion, traffic jam, motor vehicle, greening, compensation effect, lost profits, losses.

Download Full-text