Development of an Economic Model to Compare Median Barrier Costs
Auteur: James E. Bryden
Nombre de pages: 34 pages
ISBN: ISBN non disponible
Edition: Engineering Research and Development Bureau, New York State Department of Transportation
Date de publication: Engineering Research and Development Bureau, New York State Department of Transportation
Description: The New York State Department of Transportation specifies concrete safety-shaped barrier in narrow medians on high-volume urban expressways, where frequent impact repairs would result in traffic delays and high repair costs if steel barriers were used. Because of the higher initial cost of the concrete barrier, its cost-effectiveness has been questioned. This report describes a model developed to compare the total costs of concrete safety-shaped and heavy-post blocked-out W-beam median barrier. This model considers construction, repair, and user accident costs, using input values selected from construction and repair cost, and accident data compiled by New York and others. The model was used to determine which barrier is the better economic choice for various situations.