A framework for management of transportation infrastructure based on key performance indicators

To facilitate decision‐making on optimal maintenance strategies for ageing traffic networks, a novel quantitative framework is presented. The framework comprises evaluation of the four KPI: reliability, safety for users and third parties, availability, and sustainability. The evolution of KPIs over time is subject to damaging processes and maintenance interventions. To characterize the impact of damaging processes and maintenance interventions, relevant performance indicators (PI) are selected that are used to estimate the key performance indicators (KPI). The native units of each KPI are normalized to a scale from 1‐5. Normalized KPI values are plotted on spider diagram for each time instance, rendering a 3D body with the volume which represents the network's quality over time, for considered maintenance strategies. The framework is aimed for medium to long‐term maintenance planning and can be further upgraded to account for risk & resilience analyses. The framework is implemented in a web‐based prototype to demonstrate its utilization in practice and future management systems.