Abstract: A method, system, and computer program product to perform infrastructure management include generating models of one or more work shifts, repair tasks, and safety tasks, each of the models including one or more variables, defining a constraint that affects at least one of the one of more variables of at least one of the models, and generating a scenario based on the models and the constraint. Solving for the one or more variables of each of the models of the scenario to determine resource pre-positioning and task scheduling, according to the scenario, is performed in order to perform the infrastructure management, the solving being based on achieving one or more objectives.