Traffic intensity and estimation of the prevalence of alcohol-impaired drivers in random roadside surveys
-
-
[1] Universitat de Barcelona
Universitat de Barcelona
Barcelona, España
-
- Localización: Contributions to risk analysis: risk 2018 / coord. por José María Sarabia Alegría, Faustino Prieto Mendoza, Montserrat Guillén Estany, 2018, ISBN 978-84-9844-683-8, págs. 29-35
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
-
Resumen
Psychoactive substances, alcohol and illicit drugs in drivers are one of the main causes of traffic accidents in the world. Here, an analysis of roadside surveys is presented for a random sample of drivers in Catalonia (Spain). The estimation of the prevalence of alcohol suffers from many methodological problems due to the need to introduce information in the sample design in order to guarantee the representativeness of the observed data. A comparative analysis shows that excluding information on traffic intensity and location may lead to results that are substantially different from those that include the sample design information. The role of sample weights is central for a correct analysis.
