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Book cover for Observational Before/After Studies in Road Safety, a book by Ezra Hauer Book cover for Observational Before/After Studies in Road Safety, a book by Ezra Hauer

Observational Before/After Studies in Road Safety

Estimating the Effect of Highway and Traffic Engineering Measures on Road Safety
1997 ᛫


Enables road safety researchers and professionals to interpret correctly the results of one of the main sources of knowledge about the effect of road safety engineering measures, the "observational Before-After study". This three part monograph includes: the essentials; adaptations of conventional approaches; and elements of a new approach.

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Summary


This three part monograph aims to enable road safety researchers and professionals to interpret correctly the results of one of the main sources of knowledge about the effect of road safety engineering measures, the "observational Before-After study". Part I, Essentials - contains information the author regards as essential for forming an opinion of results obtained by others, and for planning and analysing such a study. This is written to be accessible to all. Part II, Adaptations of conventional approaches - explains how to avoid the errors and improve the results obtained from the predominant methods currently used. This Part employs algebra and statistical analysis. Part III, Elements of a new approach - presents new approaches to improve future methods of observation and analysis.

Table of contents

  • Section headings: Essentials. Adaptions of Conventional Approaches. Elements of a New Approach.