Search results for "Road pavement"
showing 10 items of 24 documents
Image-based 3D reconstruction using traditional and mobile-phone data-sets for road pavement distress analysis
2021
The issue of road networks being in deplorable conditions is one that is widespread globally. One of the main precursors for this is that when preparing maintenance management systems, many road agencies rely on data which is often outdated or inaccurate. This is due in many cases to insufficient budgets which are unable to adequately address both maintenance and rehabilitation. It is therefore critical that road agencies have better tools at their disposal to help combat these issues. One of the possible techniques that have been identified is the use of structure from motion techniques to adequately identify road pavement distresses. This paper advances previous work in this area and expl…
Developing a Life Cycle Management methodology for road pavements
2022
The necessity of implementing sustainability is a main challenge in our society and it is taking up also in civil engineering works sector, although the infrastructure field is still understanding how to make the Sustainability Assessment (SA) a common practice within the National Road Authorities (NRAs). This research aims at providing a specific methodology for the Life Cycle Management (LCM) of road pavements materials and activities, starting from the available ISO and EN standards, by using Life-Cycle based techniques and Multi-Criteria Decision Making (MCDM), with the aim of assessing performance under the three pillars of sustainability.
Call 2017 New Materials Pavement LCM Final Report - CEDR Contractor Report 2022-02 PavementLCM – A complete package for Life Cycle Management of more…
2022
AN INTEGRATED MODEL TO EVALUATE TECHNICAL ENVIRONMENTAL AND ECONOMIC SUSTAINABILITY OF ROAD PAVEMENT
The unconditional exploitation of environmental resources, the emission of xenobiotic substances in nature and resulting pollution from the development of human activities have led, over time, to serious repercussions on the environment. Therefore these effects weigh on economic and social development. The need to deal with environmental issues and their relationship with economic development has led to the definition of sustainable development concept . The concept of sustainability combines three fundamental aspects which can not be separated, namely environmental, economic and social. The increasing sensitivity towards these socio-economic issues has driven research towards new fronts, u…
A grid of material and immaterial laboratories for supporting the sustainability of transportation: the RESET project in Sicily
2015
Transportation is a crucial sector, to be suitably approached in order of getting human activities in more environmentally sustainable paths. In fact, in developing, as well in less developing, countries people and freights mobility are responsible of important amount of pollutant emissions and are cause of significant levels of energy consumptions. In this paper, a Sicilian regional project is presented, aiming at establishing an interconnected grid of material and immaterial laboratories. These laboratories, that are devoted at inducing more virtuous behaviors in the transportation policies, are constituted by equipment and software tools, mainly located in the region’s universities, acti…
Environmental analysis of different construction techniques and maintenance activities for a typical local road
2017
Abstract In this paper, considering the sever impact of road infrastructures on both the surrounding environment as well as on the consumption of locally available natural resources, different road construction techniques have been studied and compared, in order to be able to rank the best solution in terms of environmental sustainability. For the aims of this study, a Life Cycle Analysis has been carried out on a road infrastructure with the most representative geometrical characteristics among those widely used in Italy, in suburban areas, with the help of an appropriate software, the PaLATE. The environmental effects due to both the use of recycled materials, such as the Reclaimed Asphal…
Life Cycle Management delle pavimentazioni stradali
2022
Ormai parola chiave della nostra società, la sostenibilità è al centro di ricerche e dibattiti. La comunità scientifica si impegna da anni nella definizione di strumenti e metodologie comuni per riuscire a quantificarla, proponendo standard e linee guida basate sull’analisi del ciclo di vita, come il Life Cycle Assessment (LCA), di prodotti e processi. Nell’ambito dell’ingegneria civile esistono procedure standardizzate a livello internazionale per svolgere esercizi di Sustainability Assessment; queste risultano ben strutturate per gli edifici, meno dettagliate invece per altre opere, come le pavimentazioni stradali. Questo lavoro presenta il risultato principale del progetto “PavementLCM”,…
Environmental sustainability and energy assessment of bituminous pavements made with unconventional materials
2019
The increasing sensibility towards the questions related to climate change has made the scientists and technicians aware of the need to incorporate the principles of sustainable development into the road construction sector. In this view, recycled materials in road pavements and technologies to decrease the overall carbon footprint have become more and more important. Based on the ISO14040 series, the overall purpose of this study is calculating, by means of a systemic approach, the life-cycle energy and the carbon footprint of road pavement solutions. To this aim, several alternatives in terms of bituminous mixtures (warm mix asphalt, reclaimed asphalt pavements, waste plastics) were consi…
Smart vs conventional motorways: environmental impact assessment under realistic traffic conditions
2020
Abstract This research aims at assessing the environmental impacts exerted by a smart motorway compared to those of a traditional motorway. The study has global policy implications: it takes into account the impacts due to the construction and maintenance of the infrastructure and the environmental effects produced by the traffic emissions, taking into account smart technologies and truck platooning regulation. Through a classical LCA approach, 1 km-long smart motorway with 2 m-high embankment was assumed as the functional unit for the analysis. A realistic traffic condition has been considered. A comparison between environmental effects produced by the use of virgin material and by Reclaim…
Super-Resolution Images Methodology Applied to UAV Datasets to Road Pavement Monitoring
2022
The increasingly widespread use of smartphones as real cameras on drones has allowed an ever-greater development of several algorithms to improve the image’s refinement. Although the latest generations of drone cameras let the user achieve high resolution images, the large number of pixels to be processed and the acquisitions from multiple lengths for stereo-view often fail to guarantee satisfactory results. In particular, high flight altitudes strongly impact the accuracy, and result in images which are undefined or blurry. This is not acceptable in the field of road pavement monitoring. In that case, the conventional algorithms used for the image resolution conversion, such as the bilinea…