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Structural Road Accident Models - The International DRAG Family (Hardcover, 1st ed)
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Structural Road Accident Models - The International DRAG Family (Hardcover, 1st ed)
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DRAG (from un modele de la Demande Routiere, des Accidents et leur
Gravite) is a complex computer model that simulates accident
propensities under detailed conditions. The DRAG approach
constitutes the largest road accident modelling effort ever
undertaken. Gaudry is the creator and developer of DRAG and this
work explains its nature, purpose and value. Such a model, which
explains accidents for a whole region, province or country, has
advantages in answering many questions asked about accidents (such
as the role of the economic cycle, weather, prices, insurance etc.)
that other models fail to take fully into account.
DRAG research is underpinned by a fundamental theoretical
innovation which sees a 3-level approach to analysing the
determinants of the number of road victims in a given accident:
Exposure (the distance travelled), Accident Frequency Risk and
Accident Severity Risk (i.e. the number of victims of each type of
accident). In applying flexible mathematical forms, the DRAG model
also allows significant conceptual and empirical claims to be made
about the importance of detecting responses that reverse themselves
(to alcohol, and to other factors).
Under Gaudry's guidance, a family of DRAG-inspired models has grown
up, based on their development for different countries and this
book explores each national model in turn. As more countries seek
to adopt the DRAG approach, this book serves as a timely, unique
and valuable guide to the model.
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