This book addresses the impact of critical modeling issues on the statistical significance of specifications correlated with traffic accident frequencies. Also, this book intends to shed new light on the major factors contributing to the occurrence of median crossover accidents. Furthermore, the research aims to lay out methodologies that provide significant improvements in frequency predictions. In traffic accident databases that are comprised of cross- sectional panels, unobserved effects or heterogeneity, correlation due to shared unobserved effects through accident counts, and excess zero problems are common issues in the estimation of accident count models. Various modeling structures are considered with application to median crossover accident frequencies -- this is the main contribution of the book. The median crossover accident problem helps illustrate the viability of alternative methods for heterogeneity treatment in traffic accident contexts.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.