@article{ref1,
title="A mixed integer knapsack model for allocating funds to highway safety improvements",
journal="Transportation research part A: policy and practice",
year="2002",
author="Melachrinoudis, Emanuel and Kozanidis, George",
volume="36",
number="9",
pages="789-803",
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.<p />",
language="en",
issn="0965-8564",
doi="10.1016/S0965-8564(01)00040-4",
url="http://dx.doi.org/10.1016/S0965-8564(01)00040-4"
}