Search results for " Ferro"
showing 10 items of 499 documents
EFFECT OF PROCESSING TEMPERATURE VARIATION ON STORAGE STABILITY OF TIRE RUBBER MODIFIED BINDERS
2012
Tire Rubber Modified Binders (TR-MBs), produced through wet process and used worldwide (e.g. asphalt rubber), have been demonstrated to provide various benefits to pavements and, moreover, represent a good opportunity for recycling tire rubber. However, this technology is still struggling to be fully adopted in Europe, mainly because of the poor stability of TR-MBs during high temperature storage, which leads to high initial costs in modifying existing asphalt plants. No-agitation TR-MBs (also known as terminal blends) are proving to be a great option and their development could also be the key to spreading the use of tire rubber in paving applications in Europe. This paper aims to enrich t…
Edificios de viajeros del Trenet 1920. De Francisco Mora a Calatrava
2003
La actual infraestructura del ferrocarril de vía estrecha en la provincia de Valencia es el resultado de una emblemática red de comunicaciones de casi 120 años de antigüedad. Red que se ha proyectado, construido, modificado, derribado o conservado durante un largo periodo cronológico, donde las tendencias y necesidades de un determinado momento histórico marcan las diferentes tipologías de los edificios de viajeros. El objetivo principal de este artículo es presentar los proyectos arquitectónicos de los edificios de viajeros desde 1920 hasta la actualidad; desde Francisco Mora con la ruptura del modelo clasicista y funcional de los primeros tiempos del ferrocarril hasta las estaciones tecno…
Traffic fundamentals for A22 Brenner freeway by microsimulation models.
La tesi di dottorato ha avuto come tema lo studio e l’applicazione di un modello di micro-simulazione del traffico in ambito autostradale. Essa si compone di quattro capitoli, con ognuno dei quali si è voluto sintetizzare e descrivere il lavoro di studio e ricerca svolto durante il suddetto corso di Dottorato di Ricerca. L’obiettivo principale del presente lavoro di tesi è stato quello di mettere a punto una metodologia finalizzata all’ottenimento delle relazioni fondamentali di deflusso in ambito autostradale attraverso il software di microsimulazione del traffico Aimsun. Come risulta infatti noto dalla letteratura scientifica, le relazioni fondamentali del deflusso sono utilizzate nel cam…
Capacity-based calculation of passenger car equivalents using traffic simulation at double-lane roundabouts
2018
Abstract Calculation of passenger car equivalents for heavy vehicles represents the starting point for the operational analysis of road facilities and other traffic management applications. This paper introduces a criterion to find the passenger car equivalents that reflect traffic conditions at double-lane roundabouts, where the capacity is typically estimated for each entry lane. Based on the equivalence defined by the proportion of capacity used by vehicles of different classes, the criterion implies a comparison between the capacity that would occur with a traffic demand of passenger cars only and the capacity reached beginning from a demand with a certain percentage of heavy vehicles. …
Determinazione dell’usura di rotaie tranviarie mediante analisi delle immagini con tecniche mono e stereoscopiche
2013
La misura dei valori assunti dai parametri geometrici del binario e lo stato di usura delle rotaie, ormai da diversi anni viene effettuata con tecniche laser ad alto rendimento e con treni diagnostici (come ad esempio i treni Archimede e Talete per le ferrovie ordinarie). Nel presente lavoro viene descritta una nuova procedura per la stima dell’usura del profilo trasversale di rotaie tranviarie in esercizio mediante la tecnica dell’image processing; tale approccio metodologico si basa sulle “informazioni” contenute in immagini fotografiche ad alta risoluzione delle rotaie e su specifici algoritmi che permettono di ottenere l’esatto profilo geometrico delle rotaie stesse e quindi di poter mi…
In the rail sector, France needs to do more to connect its regional networks to the European network
2023
In an article for "Le Monde" newspaper, the legal expert Martial Pernet notes that, despite the texts in force, which he urges to be applied, efforts must be made to achieve the unification of the European rail network.
New Perspectives and Challenges in Traffic and Transportation Engineering Supporting Energy Saving in Smart Cities—A Multidisciplinary Approach to a …
2022
Transportation, like other spheres of human activity, is constantly changing due to economic development. People are constantly improving the ways of moving using various energy sources, expanding infrastructures, and adapting cities to increasing traffic volumes. An efficient, modern, and demand-driven transportation infrastructure is the strength of a growing economy. The development of transportation improves the accessibility of regions and labor markets and reduces the nuisance caused by congestion. All these elements translate into economic benefits, competitiveness, increased productivity of enterprises and regions, as well as social benefits. However, transport consumes enormous ene…
Il trasporto delle merci in Sicilia nel quadro dell’intermodalità strada-rotaia
2008
Nell’articolo vengono messi in evidenza lo stato attuale del trasporto delle merci in Sicilia e gli interventi previsti per il miglioramento della rete ferroviaria siciliana, con il relativo scenario ottenibile, al fine di rendere competitivo il trasporto ferroviario nei riguardi del “tutto strada”. L’attenzione viene focalizzata sulla politica del trasporto merci, sui servizi di trasporto offerti, sugli impianti, sulle infrastrutture di trasporto, sulla rete ferroviaria siciliana, sulle prestazioni delle linee ferroviarie ed infine sulle criticità infrastrutturali del sistema ferroviario ed interportuale siciliano.
El ingeniero Antonio Navarro-Reverter y Ortoll. La continuación de una saga familiar en la compañía de tranvías y ferrocarriles de Valencia
2007
El ingeniero Antonio Fernando José Navarro-Reverter y Ortolt encarna en su persona la voluntad de una familia que ejerció su profesión a lo largo de diferentes generaciones, teniendo entre sus principales objetivos la creación y evolución del ferrocarril valenciano. Este ingeniero trabajó veinticinco años para la Compañía de Tranvías y Ferrocarriles de Valencia, realizando proyectos de ampliación y mejora de sus infraestructuras. (A)
Application of textile fibres from tire recycling in asphalt mixtures
2022
The tire rubber obtained from end-of-life car and truck tires has been successfully recycled, among other applications, in the asphalt industry by providing a mean to get asphalt mixtures with superior performance. Textile fibres are another component derived from tire recycling typically disposed of in landfills or used in energetic valorisation. This paper wants to re-ignite interest in this secondary product by evaluating its use as a valuable resource in asphalt mixtures. Indirect tensile tests, dynamic modulus, fatigue resistance, and permanent deformation tests were performed on a series of AC14 asphalt mixtures manufactured with two binders, namely 50/70 and 35/50 pen, using several …