Wyniki wyszukiwania - BazTech

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The impact of vehicle traffic volume on pedestrian behavior at unsignalized crosswalks

Fornalchyk Yevhen, Koda Eugeniusz, Kernytskyy Ivan, Hrytsun Oleh, Royko Yuriy, Bura Romana, Osiński Piotr, Barabash Ruslan, Humenuyk Ruslan, Polyansky Pavlo

Roads and Bridges - Drogi i Mosty

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2023

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Vol. 22, no. 2

201--219

EN

The research is focused on analyses of vehicle delays caused by pedestrian crosswalks on one-way streets. The study encompassed three particular locations of unsignalized crosswalks: on the street section between intersections, in the zone of intersection impact, and in the zone of intersection itself. The study revealed that the major impact on traffic jams is observed at a distance of 50-100 m from the unsignalized crosswalk. The study analyses pedestrian behavior and waiting time at such crosswalks. It was confirmed that the pedestrians did not immediately use their priority before passing. The paper presents the change in pedestrian waiting time when crossing the roadway depending on traffic flow. Based on that data, a model was prepared and simulations of pedestrian behavior at unsignalized crosswalks were performed.

PL

W pracy przestawiono analizę strat czasu przejazdu pojazdów spowodowane przez przejścia dla pieszych na ulicach jednokierunkowych. Badania obejmowały trzy różne lokalizacje przejść względem skrzyżowania: przejście na odcinku ulicy między skrzyżowaniami, przejście w obrębie strefy oddziaływania skrzyżowania oraz przejście w samej strefie skrzyżowania. Wyniki przeprowadzonych badań wykazały, że znaczący wpływ przejścia bez sygnalizacji na korki obserwuje się w odległości 50-100 m od niego. Przeanalizowano zachowanie oraz czas oczekiwania pieszych na takich przejściach. Potwierdzono, że przechodząc przez jezdnię piesi nie korzystają natychmiast z pierwszeństwa przed samochodami. W pracy przedstawiono zależność czasu oczekiwania pieszych na przejściu od natężenia ruchu pojazdów. Na podstawie uzyskanych danych przygotowano model i przeprowadzono symulacje zachowania pieszych na przejściach bez sygnalizacji.

2

Environmental analysis of the traffic closure on Piotrowo and Berdychowo streets in Poznań

Kozak Miłosław, Kryger Tomasz, Siejka Piotr

Combustion Engines

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2022

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R. 61, nr 3

18--22

EN

The article deals with the ecological assessment of the potential road investment, which is the closure of Piotrowo and Berdychowo streets within the campus of the Poznań University of Technology. The research was carried out on a simulation model of the city of Poznań with the use of PTV software. Research has shown that the closure of these streets has virtually no impact on city-wide emissions. However, the emissions deterioration takes place on a local scale, i.e. in the vicinity of the campus of the Poznań University of Technology and on most of the streets leading to it.

3

Green wave optimization

Bazan M., Ciskowski B., Halawa K., Janiczek T., Madej Ł., Rusiecki A.

Archives of Transport System Telematics

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2016

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Vol. 9, iss. 3

3--8

EN

In this paper we present the results of global optimization of green wave parameters (offsets, opening times, speed limit) for the main artery in the city of Wrocław (Poland). The optimization process was performed in ArsNumerica Execution Environment [1] and involved two different objective functions: the average waiting time and the average queue length. Both approaches were compared by calculating the number of vehicles that pssed the artery in a prescribed time.

4

Intelligent Transport System auditing using road traffic micro-simulation

Bazan M., Ciskowski P., Halawa K., Janiczek T., Kozaczewski P., Madej Ł., Rusiecki A.

Archives of Transport System Telematics

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2015

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Vol. 8, iss. 4

3--8

EN

ITS systems have been deployed for last one and a half decades. Their aim is to increase a traffic flow rate in a road network of an urbanized area, to improve the comfort of driving as well as to decrease the pollution. A lot of commercial software are is available to simulate road traffic in urbanized areas. Some of them are suitable to perform traffic simulations of intelligent transportation systems via traffic modeling. A process of traffic modeling exploiting numerical simulations for an urban area where an ITS is deployed requires provision of digital maps, traffic demand amongst city zones, traffic signalization micro-programs being executed in the environment that can imitate a dynamic behavior of traffic lights at intersections in the ITS. In this paper an execution environment, developed by the Ars Numerica Group, that launches a road traffic micro-simulation is used to audit a performance of intersections’ signalization micro-programs on one of the main arteries in the city of Wrocław (Poland).