Search results for "RAILWAY"
showing 10 items of 76 documents
The Rail Quality Index as an Indicator of the “Global Comfort” in Optimizing Safety, Quality and Efficiency in Railway Rails
2012
AbstractThe proposed model uses the stochastic dynamic programming and in particular Markov decision processes applied to the Rail Quality Index (RQI - Italian Indice di Qualità del Binario, IQB).By performing the integrated analysis of the classes of variables which characterize the overall service quality (in terms of comfort and safety), the proposed mathematical approach allows to find the solutions to the decision-making process in function of the probability of deterioration of the state variables of the infrastructure over time and of the flow of available resources.
Criteria for Laboratory Studies on Fine Soils Treated with Lime
2011
When selecting the appropriate materials for constructing road infrastructures, an important way for minimizing both the economical and environmental impact is to make use of lime for treating those natural soils that, involved in the earthwork for opening road fences, are not suitable, as they are in nature, to fulfill the specific requirements for being used as part of road construction, such as road embankments (including the capping layer) or the improved subgrade or, again, the sub-formation. From this point of view, the treatment of fine soils with lime (if needed, with lime and cement) can be considered as one of the main measures for preserving the natural environment since it fulfi…
A markovian model as a tool for optimization of maintenance planning on the railway lines
2008
This paper is designed to develop a procedure which defines a planning criterion for railway superstructure maintenance by means of Markov decision processes. This methodology allows to formulate a specific policy π which carries out the best configuration of budget allocation (min. Ф), and at the same time to guarantee the highest efficiency level in the railway superstructure. Thanks to the dynamic programming technique applied to decision processes, the report has examined the possibility of establishing the best management policy in order to maintain adequate safety levels of implementation and quality speed levels, in the presence of budget constraints, thus optimizing the available re…
The interaction between rail stations and urban area in medium-sized towns. A case study for Trapani.
2012
Dopo l'obsolescenza. Progetti per i viadotti ferroviari dismessi
2013
This article focuses on the increasing number of abandoned railways converted into new parkways, briefly investigating them trough the prism of obsolescence. Over the past forty years, the features matching with the average lifetime of infrastructural buildings have became of growing relevance dealing with contemporary policies in restructuring our territories. In the beginning of 21th century, facing the new challenges of the post-carbon era, cities of developed society are riddled with technical ruins, testaments to their recent productive past. Since the entanglement of transport infrastructure, industry and architecture highly represents important segments of 20th century urban tissues,…
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…
La regolazione indipendente del settore ferroviario
2019
The National Independent Authority for Transport, imposed by European Law and established in Italy in 2013, is characterized by using wide powers of control, regulation and sanction, which cover all transport sectors. Regulatory competences seem in particular to interfere, in some areas, with the functions, also of political direction, of the State, Regional and Local Government, as well as the competences of the other administrative independent bodies such as the National Antitrust Authority or National Anti-Corruption Authority. This requires the provision of forms of coordination and cooperation beetwen those authorities, waiting for a clear actio finium regundorum by the national legisl…
Brevi note sulla qualificazione giuridica dei beni costituenti la rete ferroviaria
2015
The paper synthetically describes how Italian courts and scholars interpret- ed the legal transformations occurred to the railway market, and notably to the rail-network’s infrastructure components property regulation, since the end of the twentieth century. The authors refute the (prevailing) opinion assuming a substantial continuity between the current stage of regulation and the regime of public property provided by the 1942 civil code; they show the reasons why, on the contrary, the rail-network components have to be considered as goods sub- ject to private property law both on the formal and the substantial floor. For this purpose, the paper emphasizes how the public interests aimed by…
La Competenza dell’Unione Europea nel trasporto ferroviario
2020
Il capitolo funge da introduzione al volume collettaneo ed esamina le competenze dell'Unione Europea nell'ambito del trasporto ferroviario. Dopo una prima ricostruzione del sistema di competenze dell'UE nel suo complesso, il contributo esamina in maniera puntuale le origini e sviluppo della politica ferroviaria dell’Unione europea in materia di trasporto ferroviario. L'analisi procede cronologicamente, a partire dal Memorandum sur l’orientation à donner à la politique commune des transports della Commissione europea del 1961, fino ad una più completa integrazione del attraverso la direttiva recast del 2012 e, da ultimo, del Quarto Pacchetto ferroviario del 2016. Tali misure, fondamentali pa…
La rete ferroviaria ad Alta Velocità in Corea del Sud [The High-Speed Rail network in South Korea]
2012
LA RETE FERROVIARIA AD ALTA VELOCITA’ IN COREA DEL SUD High speed rail in South Korea