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  Risicoanalyse van doort...  
Uit deze studies leren we ook dat er zelden zoiets als de beste oplossing bestaat. De beste oplossing is immers sterk afhankelijk van de omstandigheden (omgeving, weggebruikers). Zo blijft de vraag of fietsers in de bebouwde kom nu al dan niet gemengd moeten worden met het gemotoriseerde verkeer onopgelost.
From these papers we learn that there is hardly such a thing as the best solution. The best solution is indeed strongly influenced by the circumstances (surroundings, road users). The question remains e.g. if bicyclists should be mixed with motorised traffic or not. This depends on e.g. the type of bicyclist: An experienced bicyclist behaves differently compared to the unexperienced young cyclist or the elderly bicyclist with limited capabilities. It is clear however that they are kept in the visual range of the motorist. Two way cycle paths are not done in the built-up environment.
  A Bayesian Hierarchical...  
Omdat de fietsongevallenproportie een stochastisch karakter heeft, kan de rangorde, gebaseerd op de gemiddelde a posteriori proportie, niet deterministisch zijn. Het ordenen van gevaarlijke locaties is een interessante manier om inzicht te verwerven in het concept van gevaarlijke punten, maar er bestaat niet zoiets als DE juiste rangorde.
In this paper, Bayesian hierarchical modeling techniques are used to identify and rank hazardous intersections for bicycles in Leuven, a small university town in Belgium.  The objective of this paper is to infer the process of listing the most dangerous intersections, based on the available accident data.  The hierarchical random effects model allows the specification of different sources of variation, namely the variation between intersections and the variation within each intersection.  The Gibbs sampler is used to explore the distribution of the bicycle accident proportions.  An important advantage of the Gibbs sampler is the possibility to sample complex functions of the bicycle accident proportions, like the rank of an intersection.  It is shown that the ranking itself could be seen as a density.  Since the bicycle accident proportions have a stochastic character, the ranking of intersections based on the mean posterior proportion cannot be deterministic.  Ranking hazardous sites is an interesting means to get insight in dangerous locations, but there is no such thing as “the” correct ranking.  This paper investigates the question whether a ranking alone can give enough evidence for the selection of dangerous sites.