Effect of tyre tread depth on accident involvement during summer in Finland

Riikka Rajamäki

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

The aim of the paper is to determine whether various tyre tread depths in passenger cars and vans were associated with different fatal accident involvement rates or different weather distribution of fatal accidents. Data used in this study includes fatal accidents in 2000–2007 reported by Finnish road accident investigation teams, and tyre check data from annual tyre safety campaigns. The risk of being responsible for a fatal crash for drivers having an illegal tread depth of less than 1.6 mm is three times as high as for those having a tread depth of 3.5 mm or above. Among drivers less responsible for a crash, the risk of the being involved in a fatal crash was similar or slightly lower with a low tread depth than with a higher one. However, there are behavioural factors that correlate with the tyre tread depth. Accident involvement risk in relation to tread depth will be compared with compliance with the main traffic rules (e.g. use of seatbelts, exceeding the posted speed limits and driving while intoxicated). Among drivers who complied with the main traffic rules, those with a tread depth below 1.6 mm were just 20 % more likely to be involved in fatal crashes than those with a depth of 3.5 mm or more. Consequently, the main results imply that drivers should be informed about the importance of tyre depth as a part of their general driver training, even if the increase of risk due to low tyre tread depth is not as high as often considered.
Original languageEnglish
Title of host publicationYoung Researchers Seminar 2011
Subtitle of host publicationBook of papers
Number of pages15
Publication statusPublished - 2011
MoE publication typeNot Eligible
EventYoung Researchers Seminar 2011 - , Denmark
Duration: 8 Jun 201110 Jun 2011

Conference

ConferenceYoung Researchers Seminar 2011
Abbreviated titleYRS
CountryDenmark
Period8/06/1110/06/11

Fingerprint

Tires
Accidents
Driver training
Highway accidents
Passenger cars

Cite this

Rajamäki, R. (2011). Effect of tyre tread depth on accident involvement during summer in Finland. In Young Researchers Seminar 2011: Book of papers
Rajamäki, Riikka. / Effect of tyre tread depth on accident involvement during summer in Finland. Young Researchers Seminar 2011: Book of papers. 2011.
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Rajamäki, R 2011, Effect of tyre tread depth on accident involvement during summer in Finland. in Young Researchers Seminar 2011: Book of papers. Young Researchers Seminar 2011, Denmark, 8/06/11.

Effect of tyre tread depth on accident involvement during summer in Finland. / Rajamäki, Riikka.

Young Researchers Seminar 2011: Book of papers. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

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AB - The aim of the paper is to determine whether various tyre tread depths in passenger cars and vans were associated with different fatal accident involvement rates or different weather distribution of fatal accidents. Data used in this study includes fatal accidents in 2000–2007 reported by Finnish road accident investigation teams, and tyre check data from annual tyre safety campaigns. The risk of being responsible for a fatal crash for drivers having an illegal tread depth of less than 1.6 mm is three times as high as for those having a tread depth of 3.5 mm or above. Among drivers less responsible for a crash, the risk of the being involved in a fatal crash was similar or slightly lower with a low tread depth than with a higher one. However, there are behavioural factors that correlate with the tyre tread depth. Accident involvement risk in relation to tread depth will be compared with compliance with the main traffic rules (e.g. use of seatbelts, exceeding the posted speed limits and driving while intoxicated). Among drivers who complied with the main traffic rules, those with a tread depth below 1.6 mm were just 20 % more likely to be involved in fatal crashes than those with a depth of 3.5 mm or more. Consequently, the main results imply that drivers should be informed about the importance of tyre depth as a part of their general driver training, even if the increase of risk due to low tyre tread depth is not as high as often considered.

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Rajamäki R. Effect of tyre tread depth on accident involvement during summer in Finland. In Young Researchers Seminar 2011: Book of papers. 2011