{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,25]],"date-time":"2025-11-25T20:28:10Z","timestamp":1764102490905,"version":"3.41.2"},"reference-count":27,"publisher":"Emerald","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Proceedings of the Institution of Civil Engineers - Transport"],"published-print":{"date-parts":[[2009,8]]},"abstract":"<jats:p> This paper presents a geographical-information-system (GIS)-based pavement-management system for Oliveira do Hospital in Portugal. The pavement-management system includes the following components: a road network database, a quality evaluation too, a costs model, a pavement performance model and a decision-aid tool. The quality of road pavements is evaluated by the present serviceability index (PSI), representing the condition of the pavement as a function of the following parameters: longitudinal roughness, rutting, cracking, surface disintegration and patching. This pavement quality index is computed by using a modified version of the American Association of State Highways and Transportation Officials (AASHTO) PSI equation. The decision-aid tool uses a deterministic segment-linked optimisation model with the objective of minimisation of the total expected discounted costs over the planning time-span while keeping the road pavements within given quality standards. The decision-aid tool also uses the deterministic pavement-performance model used in the AASHTO flexible pavement-design method that allows the gap between project and network management to be closed. Recent international pavement-management conferences have concluded that this is one of the most important problems to be solved. The information produced by the system is shown in maps using a GIS. <\/jats:p>","DOI":"10.1680\/tran.2009.162.3.157","type":"journal-article","created":{"date-parts":[[2009,11,17]],"date-time":"2009-11-17T14:43:19Z","timestamp":1258468999000},"page":"157-169","source":"Crossref","is-referenced-by-count":20,"title":["Pavement-management system for Oliveira do Hospital, Portugal"],"prefix":"10.1680","volume":"162","author":[{"given":"A. J. L.","family":"Ferreira","sequence":"first","affiliation":[{"name":"Department of Civil Engineering, University of Coimbra Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S. C. N.","family":"Meneses","sequence":"additional","affiliation":[{"name":"Technology and Management High School of Oliveira do Hospital, Institute Polytechnic of Coimbra, Oliveira do Hospital Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F. A. 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