Decision Support for Tactical Planning: A Use Case of the Infralert Project

Abstract

The final objective of the INFRALERT system is to provide Infrastructure Managers/Owners and Maintenance
Operators/Contractors with intelligent software tools to support the decision-making process when planning maintenance
activities and interventions. We focus on the application of INFRALERT for tactical planning in the road
pilot in Portugal, where the maintenance department has to allocate major interventions over a 5-year time horizon.
The tactical planning has to optimise simultaneously the maintenance intervention costs, the quality index
and the availability of the network. The allocation and selection of interventions in the tactical plan is based on the
maintenance alerts generated by the INFRALERT Alert Management toolkit, which is based on predicted future
conditions coming from the Asset Condition toolkit. The corresponding mathematical optimisation model which
reflects the uncertainty in the problem description has been developed as foundation for the decision support tool.
The handling of uncertain information in the decision support tool is done by applying a scenario approach.