Open AccessJournal Article
Development of Prediction Models for Motorcycle Crashes at Signalized Intersections on Urban Roads in Malaysia
TLDR
In this paper, a generalized linear modeling technique with quasilikelihood approach was adopted to develop the models for predicting motorcycle crashes at signalized intersections on urban roads in Malaysia, and traffic entering the intersection, approach speed, lane width, number of lanes, shoulder width, and land use at the approach of the intersections were found to be significant in describing motorcycle crashes.Abstract:
Because more than half the motor vehicles in Malaysia are motorcycles, safety of this from of transportation is an important issue. As part of a motorcycle safety program, Malaysia became the first country to provide exclusive motorcycle lanes in the hopes of reducing motorcycle crashes along trunk roads. However, little work has been done to address intersection crashed involving motorcycles. This paper provides models for predicting motorcycle crashes at signalized intersections on urban roads in Malaysia. A generalized linear modeling technique with quasilikelihood approach was adopted to develop the models. Traffic entering the intersection, approach speed, lane width, number of lanes, shoulder width, and land use at the approach of the intersections were found to be significant in describing motorcycle crashes. These findings should enable engineers to draw up appropriate intersection treatment criteria specifically designed for motorcycle lane facilities in Malaysia and elsewhere.read more
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References
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Book
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Peter McCullagh,John A. Nelder +1 more
TL;DR: In this paper, a generalization of the analysis of variance is given for these models using log- likelihoods, illustrated by examples relating to four distributions; the Normal, Binomial (probit analysis, etc.), Poisson (contingency tables), and gamma (variance components).
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Generalized Linear Models
TL;DR: In this paper, the authors used iterative weighted linear regression to obtain maximum likelihood estimates of the parameters with observations distributed according to some exponential family and systematic effects that can be made linear by a suitable transformation.
The relationship between speed and accidents of rural single-carriageway roads
M C Taylor,A Baruya,J Kennedy +2 more
TL;DR: In this article, a more extensive investigation of the relationship between speed and accidents on rural single-carriageway roads in England is described, and the resulting speed-accident relationships and discusses their implications for rural speed management.
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Accident prediction models for roads with minor junctions
TL;DR: A method for predicting expected accidents on main roads with minor junctions where traffic counts on the minor approaches are not available and an empirical Bayes procedure was used to improve these estimates by combining them with accident counts.
Journal ArticleDOI
Accident prediction models for urban unsignalized intersections in british columbia
Tarek Sayed,Felipe Rodriguez +1 more
TL;DR: Four applications of the accident prediction models used for estimating the safety performance of urban unsignalized intersections are described: identifying accident-prone locations, developing critical accident frequency curves, ranking the identified accident-plates, and evaluating before-and-after safety.