Wyniki wyszukiwania - BazTech

1

AI-based Yolo v4 intelligent traffic light control system

Prathap Boppuru Rudra, Kumar Kukatlapalli Pradeep, Chowdary Cherukuri Ravindranath, Hussain Javid

Journal of Automation Mobile Robotics and Intelligent Systems

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2022

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Vol. 16, No. 4

53--61

EN

With the growing number of city vehicles, traffic management is becoming a persistent challenge. Traffic bottlenecks cause significant disturbances in our everyday lives and raise stress levels, negatively impacting the environment by increasing carbon emissions. Due to the population increase, megacities are experiencing severe challenges and significant delays in their day-to-day activities related to transportation. An intelligent traffic management system is required to assess traffic density regularly and take appropriate action. Even though separate lanes are available for various vehicle types, wait times for commuters at traffic signal points are not reduced. The proposed methodology employs artificial intelligence to collect live images from signals to address this issue in the current system. This approach calculates traffic density, utilizing the image processing technique YOLOv4 for effective traffic congestion management. The YOLOv4 algorithm produces better accuracy in the detection of multiple vehicles. Intelligent monitoring technology uses a signal-switching algorithm at signal intersections to coordinate time distribution and alleviate traffic congestion, resulting in shorter vehicle waiting times.

2

A computational model for multi-criteria decision making in traffic JAM problem

Naeem Ali, Abbas Jabbar

Journal of Automation Mobile Robotics and Intelligent Systems

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2021

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Vol. 15, No. 2

39--43

EN

In this paper, we apply a computational model for multicriteria decision making in traffic jam problems. First, we propose a system to determine the optimal shortcut road by reading the number of cars in each street using Radio Frequency Identification (RFID). Then, we have processed the data of traffic jam problems using Choquet integral with writing algorithm and computer program as a working procedure.

3

Tests and calculations of structural element of temporary bridges

Ganyukov A., Kadyrov A., Balabekova K., Kurmasheva B.

Roads and Bridges - Drogi i Mosty

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2018

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Vol. 17, no. 3

215--226

EN

The new concept of mobile temporary bridge overcrossing intended for a reduction of traffic jams is presented in the paper. After discussing the bridge structure details, the optimum length of the module of the bridge overcrossing is determined and then calculation of the orthotropic plate of the bridge carriageway and its supporting structure are presented. In the calculations elements of the mathematical analysis, method of finite elements FEM and method of finite differences FDM as well as analytical displacement method were applied. Reliability of results is confirmed by coincidence of deflections obtained by both, FEM and FDM, methods. The solution matrix of the FDM obtained in this work allows to calculate any plate with wide variety of its geometrical dimensions, and also for different parameters of the plate and reinforcing elements flexural stiffnesses. The analysis of the bridge overcrossing spatial frame is performed by precise method of displacement taking into account the bending and torsion of its elements.

PL

Celem badań było przedstawienie nowej koncepcji mobilnego wiaduktu tymczasowego, umożliwiającego skuteczne zmniejszenie zatorów drogowych. W artykule omówiono konstrukcję mostu, określono optymalną długość modułu wiaduktu mobilnego, przeprowadzono obliczenia wytrzymałościowe płyty ortotropowej jezdni wiaduktu i jego konstrukcji wsporczej. W obliczeniach zastosowano elementy metody analizy matematycznej, metodę elementów skończonych, metodę różnic skończonych i metodę przemieszczeń. Zgodność uzyskanych różnymi metodami wyników obliczenia ugięć potwierdziła ich wiarygodność Wyznaczona w artykule macierz metody różnic skończonych umożliwia obliczanie dowolnych płyt w szerokim zakresie ich wymiarów geometrycznych i przy różnych wartościach sztywności elementów giętnych i wzmacniających płyty. Wykorzystując metodę przemieszczeń przeprowadzono obliczenia ramy przestrzennej wiaduktu, uwzględniając zginanie i skręcanie jej elementów konstrukcyjnych.

4

The constructive solution and calculation of elements of the unified module of the mobile bridge overcrossing

Kadyrov A., Balabekova K., Ganyukov A., Akhmediyev S.

Transport Problems

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2017

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T. 12, z. 3

59--69

EN

In the article the construction of a modular mobile overcrossing is offered. Calculation of its constructive elements is performed and the optimum length of one module is determined. The purpose is the development of the technique and calculation for the new construction of a mobile bridge overcrossing intended for reduction of traffic jams. Methods: The methods uses are mathematical analysis, method of finite elements, method of finite differences, and analytical method of relocation. Dependencies for determination of the optimum length of the module of bridge overcrossing are identified. The calculation of the constructive-orthotropic plate for the carriageway of the bridge overcrossing using numerical methods of finite differences and finite elements is performed; the reliability of results is confirmed with coincidence of deflection values. The solution matrix of the method of finite differences developed in this work allows calculation of arbitrary plates with a wide variety of geometrical sizes, and also for different values of flexural stiffness properties of the plate and reinforcing elements. The calculation of the spatial frame of the bridge overcrossing is performed by the precise analytical method of relocation taking into account the bend and torsion of its elements.

5

Utility analysis of zipper-merging for improvement of traffic jam by CA simulation

Wakita Y., Shimizu H., Iguchi T., Kita E.

Journal of Technical Physics

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2009

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Vol. 50, no 4

387-401

EN

When slow vehicles go at the merging point of roads from a branch road to a main road, a traffic jam occurs there. Some researchers pointed out that the zipper merging of the vehicles is effective for reducing the traffic jam near the merging point of roads. The aim of this study is to discuss the effectiveness of the zipper merging by using cellular automata simulation. The vehicle behavior is modeled according to the single and multiple vehicles following models. While, in the single vehicle following model, the acceleration rate depends ou the velocity difference with the nearest vehicle ahead alone, the multiple vehicles following model controls the acceleration rate according to the velocity differences with three vehicles ahead. The results show that, in the case of the single vehicle following model, the maximum speed reduction is about 40% in case of no-zipper merging and 20% in case of zipper merging. In addition to that, the multiple vehicle following model can recover the velocity sooner than the single vehicle following model. Therefore, we can conclude that the combinational use of the zipper merging and the multiple vehicles following model can reduce successfully the traffic jam near the merging point of roads.