Driver mileage and accident involvement: A synthesis of evidence
Journal article, Peer reviewed
Published version
Permanent lenke
https://hdl.handle.net/11250/3071469Utgivelsesdato
2022-11-14Metadata
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Originalversjon
10.1016/j.aap.2022.106899Sammendrag
The relationship between driver mileage and accident involvement has been a controversial topic for at least 20
years. The key issue is whether driver accident involvement rate increases in proportion to miles driven or has a
non-linear relationship to miles driven. This paper presents a synthesis of evidence from studies of how the
number of accidents per driver per unit of time relates to distance driven in the same period. Most studies of this
relationship are methodologically weak and their results highly inconsistent and potentially misleading. Unre liable data and poor control for confounding factors characterise most studies. Only a few studies based on
multivariate statistical models control for at least some of the confounding factors that may influence the
relationship between distance driven and accident involvement. These studies consistently show that the number
of accidents per driver per year increases less than in proportion to distance driven. A good approximation is that
the number of accidents per driver per unit of time is proportional to the square root of distance driven. Potential
methodological and substantive explanations of this finding are discussed.
Beskrivelse
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).