Citation

Melachrinoudis E, Kozanidis G. Transp. Res. A Policy Pract. 2002; 36(9): 789-803.

Copyright

(Copyright © 2002, Elsevier Publishing)

DOI

10.1016/S0965-8564(01)00040-4

PMID

unavailable

Abstract

This paper presents a methodology for allocating funds to highway safety improvements. Besides the commonly used binary variables that represent discrete interventions at specific points of a highway, continuous variables are introduced to represent the lengths of a highway over which continuous improvements, such as pavement resurfacing or lighting, are implemented. The problem is formulated as a mixed integer knapsack model with linear multiple choice constraints. Some insight into its solution properties is provided and an efficient branch and bound algorithm is proposed for its solution. A case study that illustrates the application of the model is also presented.