Identification of the Determinants of the Effectiveness of On-Road Chicanes in the Village Transition Zones Subject to a 50 km/h Speed Limit

In recent years, in which a considerable increase in the road traffic volumes has been witnessed, traffic calming has become one the key issues in the area of road engineering. This concerns, in particular, trunk roads passing through small villages with a population of up to 500 and the road sectio...

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Main Authors: Alicja Barbara Sołowczuk, Dominik Kacprzak
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/13/4002
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author Alicja Barbara Sołowczuk
Dominik Kacprzak
author_facet Alicja Barbara Sołowczuk
Dominik Kacprzak
author_sort Alicja Barbara Sołowczuk
collection DOAJ
description In recent years, in which a considerable increase in the road traffic volumes has been witnessed, traffic calming has become one the key issues in the area of road engineering. This concerns, in particular, trunk roads passing through small villages with a population of up to 500 and the road section length within the village limits of ca. 1400–1700 m. A successful traffic calming scheme must involve primarily effective reduction in inbound traffic speed. A review of the data from various countries revealed that chicanes installed in the transition zones may have a determining effect on the success of the traffic calming project. The effectiveness of such chicanes depends mainly on the type of chicane, its location on the carriageway, its shape and the size of the lateral deflection imposed by the chicane on the inbound lane. The purpose of this study was to identify the speed reduction determinants in traffic calming schemes in village transition zones, based on a central island horizontally deflecting one lane of a two-lane two-way road with 50 km/h speed restriction. As part of the study, vehicle speeds were measured just before and after the chicanes under analysis. Furthermore, the inbound lane traffic volumes were measured in field and a number of factors were identified, including the applied traffic management scheme, road parameters, view of the road ahead and of the village skyline, isolated buildings, road infrastructure and adjacent roadside developments. The obtained data were analysed with a method employing tautologies of the selected 32 factors affecting the drivers’ perception. A single aggregate parameter was proposed for assessing the coincidence of the influence of selected factors on speed reduction. The analysis of the existing schemes and the results of statistical analyses carried out in this study confirmed the authors’ hypothesis that the combined selected factors produce a desirable effect and that they should be additionally enhanced by the application of solar powered devices.
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spelling doaj.art-06861a48333c423ab1cbfa9bb0f36e042023-11-22T02:38:32ZengMDPI AGEnergies1996-10732021-07-011413400210.3390/en14134002Identification of the Determinants of the Effectiveness of On-Road Chicanes in the Village Transition Zones Subject to a 50 km/h Speed LimitAlicja Barbara Sołowczuk0Dominik Kacprzak1Road and Bridge Department, Faculty of Civil and Environmental Engineering, West Pomeranian University of Technology Szczecin, 71-311 Szczecin, PolandRoad and Bridge Department, Faculty of Civil and Environmental Engineering, West Pomeranian University of Technology Szczecin, 71-311 Szczecin, PolandIn recent years, in which a considerable increase in the road traffic volumes has been witnessed, traffic calming has become one the key issues in the area of road engineering. This concerns, in particular, trunk roads passing through small villages with a population of up to 500 and the road section length within the village limits of ca. 1400–1700 m. A successful traffic calming scheme must involve primarily effective reduction in inbound traffic speed. A review of the data from various countries revealed that chicanes installed in the transition zones may have a determining effect on the success of the traffic calming project. The effectiveness of such chicanes depends mainly on the type of chicane, its location on the carriageway, its shape and the size of the lateral deflection imposed by the chicane on the inbound lane. The purpose of this study was to identify the speed reduction determinants in traffic calming schemes in village transition zones, based on a central island horizontally deflecting one lane of a two-lane two-way road with 50 km/h speed restriction. As part of the study, vehicle speeds were measured just before and after the chicanes under analysis. Furthermore, the inbound lane traffic volumes were measured in field and a number of factors were identified, including the applied traffic management scheme, road parameters, view of the road ahead and of the village skyline, isolated buildings, road infrastructure and adjacent roadside developments. The obtained data were analysed with a method employing tautologies of the selected 32 factors affecting the drivers’ perception. A single aggregate parameter was proposed for assessing the coincidence of the influence of selected factors on speed reduction. The analysis of the existing schemes and the results of statistical analyses carried out in this study confirmed the authors’ hypothesis that the combined selected factors produce a desirable effect and that they should be additionally enhanced by the application of solar powered devices.https://www.mdpi.com/1996-1073/14/13/4002traffic calmingtransition zonechicanespeed restrictionspeed reductionsolar cells
spellingShingle Alicja Barbara Sołowczuk
Dominik Kacprzak
Identification of the Determinants of the Effectiveness of On-Road Chicanes in the Village Transition Zones Subject to a 50 km/h Speed Limit
Energies
traffic calming
transition zone
chicane
speed restriction
speed reduction
solar cells
title Identification of the Determinants of the Effectiveness of On-Road Chicanes in the Village Transition Zones Subject to a 50 km/h Speed Limit
title_full Identification of the Determinants of the Effectiveness of On-Road Chicanes in the Village Transition Zones Subject to a 50 km/h Speed Limit
title_fullStr Identification of the Determinants of the Effectiveness of On-Road Chicanes in the Village Transition Zones Subject to a 50 km/h Speed Limit
title_full_unstemmed Identification of the Determinants of the Effectiveness of On-Road Chicanes in the Village Transition Zones Subject to a 50 km/h Speed Limit
title_short Identification of the Determinants of the Effectiveness of On-Road Chicanes in the Village Transition Zones Subject to a 50 km/h Speed Limit
title_sort identification of the determinants of the effectiveness of on road chicanes in the village transition zones subject to a 50 km h speed limit
topic traffic calming
transition zone
chicane
speed restriction
speed reduction
solar cells
url https://www.mdpi.com/1996-1073/14/13/4002
work_keys_str_mv AT alicjabarbarasołowczuk identificationofthedeterminantsoftheeffectivenessofonroadchicanesinthevillagetransitionzonessubjecttoa50kmhspeedlimit
AT dominikkacprzak identificationofthedeterminantsoftheeffectivenessofonroadchicanesinthevillagetransitionzonessubjecttoa50kmhspeedlimit