Search results for "Trasporti"
showing 10 items of 180 documents
Downscaling climate change impacts, socio-economic implications and alternative adaptation pathways for islands and outermost regions
2021
Questo libro fornisce una panoramica completa degli scenari futuri del cambiamento climatico e delle problematiche di gestione associate all'impatto del cambiamento climatico sull'economia blu delle isole e delle regioni ultraperiferiche europee. La pubblicazione raccoglie i principali risultati dei risultati della ricerca del progetto Soclimpact, con l'obiettivo di aumentare la consapevolezza sociale tra i responsabili politici e l'industria sulle conseguenze dei cambiamenti climatici a livello locale e fornire informazioni basate sulla conoscenza nella progettazione delle politiche di sostegno, dal livello locale a quello nazionale. This book provides a comprehensive overview of the futur…
Car sharing demand estimation and urban transport demand modelling using stated preference techniques
2008
The research deals with the use of the stated preference technique (SP) and transport demand modelling to analyse travel mode choice behaviour for commuting urban trips in Palermo, Italy. The principal aim of the study was the calibration of a demand model to forecast the modal split of the urban transport demand, allowing for the possibility of using innovative transport systems like car sharing and car pooling. In order to estimate the demand model parameters, a specific survey was carried out inside the urban area of Palermo. The survey focused on the morning rush hour and involved mainly employees, self-employed workers and students (about 500 respondents) whose final destination was lo…
A Microsimulation-Based Modelling Approach for Connected and Automated Vehicles on Roundabouts
2023
Connectivity and automation are technologies applied in combination to achieve increases in road safety, traffic efficiency and energy savings. Despite their potential, there are still many open questions regarding how roadway capacity will be affected and what methods should be employed to assess the expected benefits in the transportation domain. In this paper “what-if” scenarios were modelled in Aimsun Next to analyse assumption-based behaviour of automated vehicles operating with a cooperative adaptive cruise control system on roundabouts. The idea behind the study comes from the availability of the capacity adjustment factors for connected and automated vehicles provided by the Highway…
HUMAN RESOURCES MANAGEMENT IN MARITIME CONTAINER TERMINALS: OPTIMISATION METHODS AND POLICY IMPLICATIONS
2014
In the competitive environment of container transport, Container Terminals (CT) have to plan carefully the management of their resources and services in order to satisfy shipping companies’ requirements. Failure to do so may lead vessel operators to re-schedule their routes calling at new promising terminals. In particular, the optimal management of human resources is a major issue in port systems having low automation and high labour costs. This thesis aims at providing a large overview of current practices and issues concerning the management of dockworkers in the CT area, in order to suggest the analytical methods and policies for its improvement. The focus is on the operational plan (24…
A GIS-based method for evaluating the walkability of a pedestrian environment and prioritised investments
2020
Abstract Despite the large investments made in the construction and modernisation of railway infrastructure, poor quality pedestrian routes may discourage users from using public transport. In fact, very little attention is generally paid to pedestrian mobility. Therefore, a method for evaluating the quality of pedestrian paths and the accessibility to railway stations has been developed. This method considers the main factors influencing the walkability of an urban area and makes it possible to establish the priorities for intervention, i.e. to identify the arcs of a pedestrian network that require prioritised action. The methodology is a decision support tool that can be used by policymak…
Prediction of arrival times and human resources allocation for container terminal
2011
Increasing competition in the container shipping sector has meant that terminals are having to equip themselves with increasingly accurate analytical and governance tools. A transhipment terminal is an extremely complex system in terms of both organisation and management. Added to the uncertainty surrounding ships’ arrival time in port and the costs resulting from over-underestimation of resources is the large number of constraints and variables involved in port activities. Predicting ships delays in advance means that the relative demand for each shift can be determined with greater accuracy, and the basic resources then allocated to satisfy that demand. To this end, in this article we pro…
The Go2School project for promoting cycling to school: A case study in Palermo
2021
Abstract The identification of transport policy measures able to reduce the use of private cars for home-to-school travel is very relevant to reduce congestion during peak hours and to ensure that the areas around schools have livable environments. An action that policymakers could apply is promoting cycling to school through the introduction of bikesharing programs and creating safe routes to school through the construction of new cycle infrastructure. The aim of the paper has been, therefore, to assess if these policies could lead the high-school students to cycle to school, considering the city of Palermo as a case study. The goal is reached through the calibration of a modal choice mode…
Improving the sustainability of transportation: environmental and functional benefits of right-turn by pass lanes at roundabouts
2015
The functional performances of conventional roundabouts (single-lane and multi-lane) and innovative roundabouts (spiral, flower, C and turbo) can be improved through right-turn bypass lanes controlled by stop, yield or free-flow signs. The article presents evaluations of the emissions of air pollutants (carbon dioxide, nitrogen oxides, particle pollution (PM10 and PM2.5)), fuel consumption and construction, management, energetic and environmental costs in roundabouts without or with bypass lanes (controlled by stop, yield or free-flow). The suggested methodology has a general character and can be applied as a multi-parametric criterion for choosing road intersections, although, in the prese…
Sustainable mobility: “exchange poles” between transport networks and urban structure
2012
An intermodal hub can be defined as a place where transportation networks are organized to facilitate intermodality between different modes. Intermodal hubs should intrinsically have an urban dimension and be globally designed as “plug flows”, being interfaces between transport networks and territory, being an element to create “urbanity”. Intermodal hubs focus technical, social, urban, transport, service aspects and they play a multi-modal, multi-service, multioperator role. Several studies highlight the need to “measure the interdependence” among the various aspects of urban problems, avoiding too specific methodologies. The increasing congestion in urban centres and urban parking problem…
The environmental benefits of carsharing: The case study of Palermo
2020
Abstract The problems related to traffic emissions are becoming increasingly pressing and serious, especially in big cities where the private car plays the main role in the mobility of people, being excessively used, while walking, cycling and the use of public transport are often seen as secondary options and are hampered by a poorly urban environment. Therefore, solutions must be found to reduce the number of cars circulating in the city and to support the most sustainable modes of transport at the same time, in order to reduce emissions of greenhouse gases and harmful substances. A modal alternative which is of undoubted interest could be represented by carsharing, which is a mode comple…