Effects of winter Tyre type on roughness and polishing of road surfaces covered with ice and compact snow

Mikko Malmivuo, Juha Luoma

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Purpose: This field study was designed to compare to what degree various proportions of studded and unstudded winter tyres affect the roughness and polishing of road surfaces covered with ice and compact snow.
Methods: Test cars equipped with studded and unstudded winter tyres drove around a test track according to the designed procedure. The main straight section of the track had five lanes, each with a different proportion of cars with studded tyres: 100%, 75%, 50%, 25% and 0% of the respective lane traffic. The remainder were cars with unstudded winter tyres. Each lane included sections of ice and compact snow with subsections for constant speed, braking and acceleration. The lanes were driven 642 times. The ambient temperature was approximately 0 °C during the test.
Results: The overall results showed that there was no substantial difference in friction of the road surface between lanes having 100%, 75% or 50% of cars with studded tyres. However, the friction was much poorer in lanes having fewer cars with studded tyres.
Conclusions: These results suggest that traffic with 50% of cars having studded tyres results in adequate friction of icy road surfaces in the test conditions.
Original languageEnglish
Article number2
JournalEuropean Transport Research Review
Volume9
Issue number1
DOIs
Publication statusPublished - 1 Mar 2017
MoE publication typeA1 Journal article-refereed

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Snow
Polishing
Tires
Ice
Surface roughness
road
Railroad cars
traffic
Friction
Braking

Keywords

  • snowtyres
  • winter tyres
  • studded tyres
  • icy road surfaces
  • road safety

Cite this

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abstract = "Purpose: This field study was designed to compare to what degree various proportions of studded and unstudded winter tyres affect the roughness and polishing of road surfaces covered with ice and compact snow.Methods: Test cars equipped with studded and unstudded winter tyres drove around a test track according to the designed procedure. The main straight section of the track had five lanes, each with a different proportion of cars with studded tyres: 100{\%}, 75{\%}, 50{\%}, 25{\%} and 0{\%} of the respective lane traffic. The remainder were cars with unstudded winter tyres. Each lane included sections of ice and compact snow with subsections for constant speed, braking and acceleration. The lanes were driven 642 times. The ambient temperature was approximately 0 °C during the test.Results: The overall results showed that there was no substantial difference in friction of the road surface between lanes having 100{\%}, 75{\%} or 50{\%} of cars with studded tyres. However, the friction was much poorer in lanes having fewer cars with studded tyres.Conclusions: These results suggest that traffic with 50{\%} of cars having studded tyres results in adequate friction of icy road surfaces in the test conditions.",
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Effects of winter Tyre type on roughness and polishing of road surfaces covered with ice and compact snow. / Malmivuo, Mikko; Luoma, Juha.

In: European Transport Research Review, Vol. 9, No. 1, 2, 01.03.2017.

Research output: Contribution to journalArticleScientificpeer-review

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