Observational before - after studies in road safety : estimating the effect of highway and traffic engineering measures on road safety
2. impr
2002
XIV, 289 S
24 cm
graph. Darst
Includes bibliographical references (p. 275 - 281) and index
Digital preservation by Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
Book
English
The importance of confounding in observational before-and-after studies of road safety measures
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