PSI - Issue 44

ScienceDirect Structural Integrity Procedia 00 (2022) 000–000 Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com Sci nceDire t Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 44 (2023) 737–744

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. The preparation of an interpretative and guidance document – drawn up in the form of operating instructions inserted in the body of the text of the current Guidelines – has the goal to identify a common and uniform approach to the multi-level procedure that, starting from the census of the assets, leads to the determination of a overall Attention Class on the basis of which to activate safety checks. The present paper, retracing the Operating Instructions, focuses on risk assessment by examining, in particular, the issue of seismic risk linked to the risk factors of the characterization of the environmental actions, vulnerability and exposure. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy Keywords: Bridge Management System; Bridge Guidelines; Safety Road Infrastructures; Risk Assessment Evaluation Management Mitigation; Seismic Risk; Existing Bridges; Operating Instructions. Abstract Safety of road and highway infrastructures is a fundamental element of their sustainability, therefore, the National Agency for safet of railways and roads, formerly Ansfisa, has activated a s ri s of coordinated actions aimed at reducing and managing the risks associated with road and highway infrastructures, according to the mo ern internation l guidelines which, recognizi t impossibility of guaranteeing a zero risk, est blish guidelines for the management and reduction of the risks themselves. The Italian regulatory instrument used are the Guidelines for risk classification and ma agem nt, safety assessment and monitoring of bridges, adopted with Ministerial Decree no. 578 of 17/12/2020. The application of these Guidelines has highlighted various interpretative issues, resulting also by discretional approaches, not reconcil ble with the Agency needs of uniformity, supervision and certification. Therefore, within the scope of its compete ces, the Agency has propos d appropriate Operating Instructions. Th preparation of a interpretative and guidance document – drawn up in the form of operating instructions inserted in the body of the text of the current Guidelines – has the goal to identify a common and uniform approach to the multi-level procedure that, starting from t e census of th assets, leads to the determination of a overall Attention Cl ss on t basis of which to activate afety checks. The present paper, retracing the Op rating Instructions, f cuses on risk assessment by xamining, in particular, th issue of seismic risk linked to the risk factors of th characterization of the environmental actions, vulnerability and expos re. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under re ponsibility of scientific committe of the XIX ANIDIS C nference, Seismic Engineering in Italy Keywords: Bridge Management System; Bridge Guidelines; Safety Road Infrastructures; Risk Assessment Evaluation Management Mitigation; Seismic Risk; Existing Bridges; Operating Instructions. XIX ANIDIS Conference, Seismic Engineering in Italy Operating instructions to the guidelines for risk classification and management, safety assessment and monitoring of existing bridges and seismic risk Emanuele Renzi, Alfredo Rossi, Galileo Tamasi*, Graziano Tabelli, Chiara Miccinelli, Armando Lanzi, Mario Vaccariello, Carla Assunta Trifarò National Safety Agency for Safety of Railway and Road infrastructures, Viale del Policlinico,2 – 00185 – Roma, Italy . Abstract Safety of road and highway infrastructures is a fundamental element of their sustainability, therefore, the National Agency for safety of railways and roads, formerly Ansfisa, has activated a series of coordinated actions aimed at reducing and managing the risks associated with road and highway infrastructures, according to the modern international guidelines which, recognizing the impossibility of guaranteeing a zero risk, establish guidelines for the management and reduction of the risks themselves. The Italian regulatory instrument used are the Guidelines for risk classification and management, safety assessment and monitoring of bridges, adopted with Ministerial Decree no. 578 of 17/12/2020. The application of these Guidelines has highlighted various interpretative issues, resulting also by discretional approaches, not reconcilable with the Agency needs of uniformity, supervision and certification. Therefore, within the scope of its competences, the Agency has proposed appropriate Operating Instructions. XIX ANIDIS Conference, Seismic Engineering in Italy Operating instructions to the guidelines for risk classification and management, safety assessment and monitoring of existing bridges and seismic risk Emanuele Renzi, Alfredo Rossi, Galileo Tamasi*, Graziano Tabelli, Chiara Miccinelli, Armando Lanzi, Mario Vaccariello, Carla Assunta Trifarò National Safety Agency for Safety of Railway and Road infrastructures, Viale del Policlinico,2 – 00185 – Roma, Italy .

* Corresponding author. Tel.: +39(320)6197910; E-mail address: galileo.tamasi@ansfisa.gov.it * Corresponding author. Tel.: +39(320)6197910; E-mail address: galileo.tamasi@ansfisa.gov.it

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. 10.1016/j.prostr.2023.01.096