Cool pavements: state of the art and new technologiesCool pavements: state of the art and new technologies Ανασκόπηση Review 2023-09-222022enWith growing urban populations, methods of reducing the urban heat island effect have become increasingly important. Cool pavements altering the heat storage of materials used in pavements can lead to lower surface temperatures and reduce the thermal radiation emitted to the atmosphere. Cool pavement technologies utilize various strategies to reduce the temperature of new and existing pavements, including increased albedo, evaporative cooling, and reduced heat conduction. This process of negative radiation forces helps offset the impacts of increasing atmospheric temperatures. This paper presents an extensive analysis of the state of the art of cool pavements. The properties and principles of cool pavements are reviewed, including reflectivity, thermal emittance, heat transfer, thermal capacity, and permeability. The different types, research directions, and applications of reflective pavements are outlined and discussed. Maintenance and restoration technologies of cool pavements are reviewed, including permeable pavements. Results show that cool pavements have significant temperature reduction potential in the urban environment. This research is important for policy actions of the European Union, noting that European and international business stakeholders have recently expressed their interest in new ways of reducing energy consumption through technologically advanced pavements.http://creativecommons.org/licenses/by/4.0/Sustainability149Kappou_et_al_Sustainability_14(9)_2022.pdfChania [Greece]Library of TUC2023-09-22application/pdf1.8 MBfree Kappou Sophia Souliotis Manolis Papaefthymiou Spyridon Παπαευθυμιου Σπυριδων Panaras Giorgos Paravantis John Michalena, Evanthie Hills Jeremy Vouros Andreas P. Ntymenou Aikaterini Mihalakakou Giouli MDPI Urban heat island Cool pavements Reduction of carbon dioxide Energy savings Reflectivity Thermal emittance Heat transfer Thermal capacity Energy policy