Relative risk of causing a road traffic crash: Quasi-induced exposure approach and its possible biases

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F19194951%3A_____%2F25%3AN0000005" target="_blank" >RIV/19194951:_____/25:N0000005 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11220/25:10500507

Result on the web

<a href="https://www.istiee.unict.it/sites/default/files/files/ET_2025_102_6.pdf" target="_blank" >https://www.istiee.unict.it/sites/default/files/files/ET_2025_102_6.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Relative risk of causing a road traffic crash: Quasi-induced exposure approach and its possible biases

Original language description

This paper addresses the challenge of heterogeneity in risk exposure when estimating the relative risk (RR) of causing road traffic crashes (RTCs) for different driver types. Quasi-induced exposure is a well-established alternative to direct data collection for exposure estimation. We investigate biases imposed on RR estimates causedby errors in fault assignment and unequal driver mix. Simulations reveal the directions and magnitudes of the possible biases and empirical tests of these biases are performed on a Czech dataset (1.2 million RTCs). Results show that errors in responsibility assignment work in opposite directions, with magnitude of bias depending on the size of the error and the target group proportion. Bias caused by unequal mixing depends on the target group proportion and the extent of the heterogeneity of not-at-fault drivers. Empirical tests confirm the discussed biases and underline their importance while interpreting RR estimates, so far mostly ignored by the literature.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

50703 - Transport planning and social aspects of transport (transport engineering to be 2.1)

Project

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Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Transport Trasporti Europei

ISSN

1825-3997

e-ISSN

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Volume of the periodical

neuveden

Issue of the periodical within the volume

102

Country of publishing house

IT - ITALY

Number of pages

18

Pages from-to

1-18

UT code for WoS article

001544945400005

EID of the result in the Scopus database

2-s2.0-105013125933