PSI - Issue 44

Francesca Fattorini et al. / Procedia Structural Integrity 44 (2023) 689–696 Fattorini et al./ Structural Integrity Procedia 00 (2022) 000–000

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public tender were taken as a reference. For the task of adopting the Bridge Guidelines, the hypothesized resources are: 1 Engineer in charge of Monitoring, 3 Engineers in charge of Inspections, 18 inspection technicians, 3 remotely piloted aircraft (SAPR) flight team technicians and 6 technical support engineers for a total of 31 technicians divided between surveillance and monitoring activities. The next step analyzed as part of the gap analysis was to define the resources to be deployed in order to estimate the overall duration of each phase. Starting from Level 0 it is schematized for each sub-phase of each level, the quantity of resources to be used, arriving at the estimate of the duration of each phase.

Table 2. Gap Analysis

Future State

Done

Resources

To Do

Resources

1) Census roadworks 2) Census Cards 3) AINOP Upload 1) Inspection Planning 2) Defect cards

Level 0 - Census

Data of most bridges uploaded on AINOP and SPQR BMS Inspections carried out quarterly and annually, plus geodetic monitoring

Level 1 - Inspections

Municipality of Rome = 2 Engineers ; Service Provider =

Municipality of Rome = 5 Engineers + 2 Surveyors ; Service Provider = 1 Engineer responsible monitoring + 3 Engineers responsible inspections + 18 Surveyors + 3 SAPR Surveyors + 6 Engineers technical support -> 31 Resources

3) AINOP Upload 4) SPQR Bridges Upload

5 Engineers + 6 Surveyors -> 13 Resources

None

Partial Multicriteria analysis of bridges

Level 2 - Multicriteria Analysis

For Level 0, therefore, was planned, starting from the experience of Service Provider for the current monitoring of the 122 roadworks of the Municipality of Rome, the following sub-phases lasting a total of 10 months: • Drafting of the census forms for the 122 roadworks for which the relevant information has already been entered in AINOP. For the aforementioned sub-phase, 3 resources were foreseen and an estimated time of 1 day of work per roadwork, arriving to estimate the overall duration of this phase in 41 days; • Retrieval of information and plans for the 281 roadworks. This sub-phase was planned considering an average of 3 working days for roadwork and 2 teams of 2 resources (technicians) each. The average duration has been estimated taking into consideration that, for some works, it will be easier to find projects at the Municipality of Rome. The overall duration, therefore, of this sub-phase was estimated at 211 days; • Drafting of the census forms on the basis of the information found in the previous phase in relation to the remaining 281 roadworks. The 71 days foreseen for the work have been estimated in half using 2 technical resources. For Level 1, the following sub-phases have been planned with a total duration of 7 months: • Execution of six-monthly inspections on all 403 roadworks surveyed with an average duration of 2 days with 4 teams made up of 2 inspectors each. The average duration has been assumed considering that there are works whose minimum inspection lasts half a day and others a maximum duration of 3 for more extensive works such as those with spans greater than 60 meters. The overall duration of this phase is 202 days; • Drafting of the defect sheets. This sub-phase was estimated considering the preparation of the cards in 2 days of work by an average endowment of 6 technical resources (the same ones that carry out on-site inspections). Finally, for Level 2, the following sub-phases have been planned with a total duration of 7 months, dividing the latter according to the extension of the roadwork: • Multi-criteria analysis of 103 roadworks with an area from 301 to 700 square meters for which the aforementioned activity will include 1.5 days of work per roadwork and the provision of 2 technicians employed in the activity.