SENsing SKIN' for Monitoring-Based Maintenance of the Transport Infrastructure

Rehabilitation Planning Module, the DSS and SENSKIN Package Integration (WP6 with leader: USTUTT)

WP-Partners: Institute of Communication and Computer Systems (ICCS), Egnatia Motorway S.A. (EOAE), RISA Sicherheitsanalysen GmbH (RISA), TECNIC S.p.A. (TECNIC) 

WP6 develops a methodology for structural maintenance decisions that will take into account the bridge structural condition, Life Cycle Cost (LCC) analyses and Life Cycle Assessment (LCA) of available rehabilitation options as well as external effects. Furthermore, it produces a software implementation of this methodology, specified as ‘Rehabilitation Planning’ Module (RPM), which will be customized for specific conditions in Greece for field testing. The RPM will be combined with an expert system for risk assisted decision making with regard to type and time of intervention for bridge rehabilitation. The expert system will bring together sensoring and information of the new bridge monitoring system as well as link to historical, external and knowledge databases (Figure 1). RPM and expert system will form the Decision Support System (DSS) that shall provide bridge operators with rehabilitation options for proactive intervention under operating loads and intervention after extreme events, depending on the actual damage state and with regard to life cycle considerations (cost, environment).



Figure 1 - Integration of RPM, Expert System and DSS (WP6)



The Rehabilitation and Planning Module as part of the DSS is itself consisting of different modular elements (Figure 2). In the module structural assessment information about technical performance and field evaluation are assessed and made available in the SENSKIN database. Also information about the damage states and rehabilitation options are defined and implemented in the database in the module rehabilitation measures. Based on this information (e.g. damage state, necessary rehabilitation measure, necessary material, etc.) and additional LCA and LCC information (e.g. environmental profile of materials, environmental rehabilitation measures, cost profiles), a combined LCA and LCC assessment is performed for the rehabilitation options. The results are feeded back into the SENSKIN database and can be accessed via the user interface by planners. Moreover, not just the environmental and cost impacts of the rehabilitation options are assessed but also the impact of the external effects (e.g. traffic) and displayed via the user interface. In order to give a notion on future changes, the influence of extreme events (e.g. earthquakes), changes in future traffic structure and energy carriers are also assessed.

WP6 image 2


Figure 2 - Modular elements of the Rehabilitation Planning Module

 Work Package Leader: USTUTT logo