Search results for "trasporti"

Traffic data acquirement by unmanned aerial vehicle

2017

This paper presents a methodology aimed to acquire traffic flow data through the employment of unmanned aerial vehicles (UAVs). The study is focused on the determination of driving behavior parameters of road users and on the reconstruction of traffic flow Origin/Destination matrix. The methodology integrates UAV flights with video image processing technique, and the capability of geographic information systems, to represent spatiotemporal phenomena. In particular, analyzing different intersections, the attention of the authors is focused on users’ gap acceptance in a naturalistic drivers’ behavior condition (drivers are not influenced by the presence of instruments and operators on the roa…

A comparative analysis between helicopter and seaplane for passenger transport.

2016

Purpose This study aims to develop a methodology to compare the feasibility of helicopter and seaplane regular transport of passengers towards destinations across a remote regional tourist context, where a lack of road and rail infrastructure make these alternative forms of air transport competitive. Design/methodology/approach The authors use a modal split model identifying the quota of passengers that potentially could utilize these two types of services, determined on the basis of previous studies on air transport demand. A technical analysis regarding transport supply is performed to identify the predominant features that should characterize helicopter/seaplane performances. An optimiza…

GIS Infomobility for Travellers

2016

Geographical Information Systems (GIS) are essential systems to support decisions on territorial and environmental aspects. But they not always have been properly used for this purpose. Only in recent years GIS have been getting better used for the planning, management and control of the territory. The application of GIS to the transport sector has become relevant both for management and decision-making in support of Public Administration (PA) and citizens. GIS are particularly useful for roads and routing graphs management capabilities as well as for searching the most suitable path. The results achieved in this research activity aimed to evaluate different road graphs, proprietary and fre…

Using AHP methodology for prioritizing the actions in the transport sector in the frame of SECAPs

2020

The drafting of the Sustainable Energy and Climate Action Plan, required for the local authorities joining the Covenant of Mayors initiative, is an opportunity to plan actions reducing greenhouse gas emissions in the transport sector. Choosing the measures to implement requires the application of a methodology that compares them, considering costs and impacts in terms of energy consumption, emissions reduction, and social benefits. The paper aims to develop a method based on the typical approach of the Analytical Hierarchy Process, supporting decisions in the transport sector in the frame of the drafting of SECAP. The method allows determining the priority actions and the optimal allocation…

A GIS-Based Methodology to Estimate the Potential Demand of an Integrated Transport System

2017

In the design of a new public transport system or of an extension of an existing system, the choice of a suitable placement of stations and stops in the territory and the definition of the main axes are very important. The different choice in the number and distribution of the stops of a road transport system or of a railway transport system, in fact, makes the system more or less widespread and affects the consistency of the catchment area and the attractiveness of the system. The accessibility of a system, add to the reliability in providing the service, is the fundamental parameter influencing the modal split of the users. Therefore, the Public Administration must have tools able to eval…

Recensioni

2012

London 2012. Sustainable Design, Delivering a Games Legacy è una monografia pubblicata nel gennaio del 2012, dalla casa editrice americana John Wiley & Sons Inc., e non ancora radotta in italiano. In quest’opera l’autrice, Hattie Hartman, architetto e urban designer, formatosi alla Harvard University e al Massachusetts Institute of Technology, scrive alla luce dell’esperienza maturata come Sustainability editor nel settimanale inglese “The Architects’ Journal”, edito dal 1896 a compendio del famoso mensile internazionale “The Architectural Review”, proponendoci una lettura sulla sostenibilità dei lavori per le Olimpiadi di Londra 2012.

OTTIMIZZAZIONE DELLE PRESTAZIONE DEL SISTEMA DEI TRASPORTI TRAMITE L’ARMONIZZAZIONE INTERNAZIONALE DEGLI APPARATI DI SEGNALAZIONE

2012

Transport policy and climate change: How to decide when experts disagree

2008

Abstract Transport is the sector with the fastest growth of greenhouse gases emissions in many countries. Accumulation of these emissions may cause uncertain and irreversible adverse climate change impacts. In this context, we use the analytic hierarchy process (AHP) to face the question on how to select the best transport policy if the experts have different opinions and beliefs on the occurrence of these impacts. Thus, both the treatment of uncertainty and dissent are examined for the ranking of transport policies. The opinions of experts have been investigated by a means of a survey questionnaire. A sensitivity analysis of the experts’ weights and the criteria’ weights confirms the robus…

The Contribution of Air Logistics to the Development of Sicilian Economy

2003

The role, played by globalization and the “just in time” supplying logic in present world economic scenario, implies that the opportunity of frequent, quick, safe and low-priced freight deliveries can be considered a key element for competitiveness. For these reasons, transportation systems, in the last years, have been characterized by the diffusion of intermodality and the “hub and spoke” distribution pattern. The phenomenon of organizing freight transport services according to a network and modal integration logic, has involved also the air transport field: to meet the new requirements of freight transportation market, in many cases, airline companies have become “global players”, expand…

Smart transportation as a driver of transition: Big data management, behavioral change and the shift to automated vehicles

2017

Background: Smart mobility can contribute to the design of “Smart cities” to answer users’ requests in terms of transport network efficiency, environmental and social sustainability. Focusing on urban smart mobility issues, the most important aspects are the presence of a connected transportation system, the availability of its information in the arrangement of digital data and the possibility to rapidly communicate it in an effective way to the citizens, urban transportation stakeholders andlocal authorities. Therefore, the challenges for the new era of mobility behavior would range from the effort of big data management and the need to shape the innovation of traveler demand to the change…