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Investigating the Impact of Weather Conditions and Time of Day on Traffic Flow Characteristics

Abstrakt

Adverse weather such as rain, snow, and fog may significantly reduce visibility or change adhesion properties and, as a consequence, affect drivers’ sense of safety, driving comfort, and their reaction to a changing driving environment (i.e., lower speed and increased headways). The changed behavior of individual drivers affects both traffic flow characteristics, that is, average speed and headways, and parameters related to highway performance such as free-flow speed and capacity. Thus, understanding the impact may be important in the context of predicting and assessing traffic conditions on planned or existing road facilities. The paper discusses the effects of adverse weather conditions and time of day on traffic flow characteristics and the parameters related to highway performance. Using real traffic and weather data from a Polish expressway, the paper aims to identify factors related to weather and time of day that significantly influence traffic flow parameters and traffic conditions and to analyze and quantify this impact. The results of the study may help to develop coefficients of weather-related adjustment factors that will make it possible to estimate, for example, average speed of vehicles in the nighttime or in conditions of rain or limited visibility. The results of the study may contribute to a new Polish method for capacity estimation and traffic conditions assessment for uninterrupted traffic facilities.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Weather Climate and Society nr 14, strony 823 - 833,
ISSN: 1948-8327
Język:
angielski
Rok wydania:
2022
Opis bibliograficzny:
Romanowska A., Budzyński M.: Investigating the Impact of Weather Conditions and Time of Day on Traffic Flow Characteristics// Weather Climate and Society -Vol. 14,iss. 3 (2022), s.823-833
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1175/wcas-d-22-0012.1
Weryfikacja:
Politechnika Gdańska

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