Models of intermodal node representation

This paper analyses three different approaches of supply representation for intermodal nodes and proposes some functional and topological models for the representation of ports and Freight Villages. Besides in the paper functional and topological representation of container port and freight village are proposed. Further research is directed to the specification and calibration of cost functions, useful for cost estimation for different components of node network, with a view to facilitate the analyses of freight mobility on multimodal large networks

AGW for efficient freight transport in container yard: models and costs

Abstract Different modes of transport are frequently used to transfer goods from origin to destination, especially on medium-long distances, in relation to the network supply, the available services, the costs. The transfer from one carrier to another, in an interchange node such as a port, a rail station, a logistics terminal, often implicates an increase of monetary and temporal costs, connected to material and immaterial operations. The principal aim is to minimize the overall cost of transport, but the freight interchange node can represent critical steps in logistics chain and for this reason much attention is now committed to actions to make efficient the functional organization of the terminal. In the last years an increasing interest is directed to the use of vehicles technologically advanced with automation of functions. The paper focuses on a particular technology, conceived recently, otherwise an intelligent rail wagon called AGW (Automated Guided Wagon) for handling of containers in a port. The use of intelligent system AGW as handling unit of containers in the yard, would allow the overcoming of diseconomies of scale and the reduction of the handling times and costs through a flexible management in relation to the characteristics of the transport supply and demand, the latter subject to a high variability. In the paper, after a brief description of the AGW technology and the advantages connected to the use of this handling system in a freight interchange node, the attention is focused on a comparative analysis between the handling system now operating in the container port (RTG, Straddle Carrier, AVG, etc.) and the system that involves the use of AGW. This analysis is made on the operational characteristics of the different handling systems, through the use of: functional schemes, with the aim to carry out evaluations related to the spatial, organizational and relational structure of container yard equipped with different handling unit; network models (graphical representation of links and paths; basic cost parameters) for the schematization and simulation of container handling in the yard; cost models for quantitative evaluation of monetary and temporal impacts, that derive from the use of different handling unit in the yard

TRANSPORT-TOURISM INTEGRATED DEVELOPMENT ACCESSIBILITY ANALYSIS BASED ON COST AND TOURISTIC ATTRIBUTES

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Safety of the navigation in congested maritime area. the case of the Messina Strait

In the last decade a relevant expansion of traffic by sea occurred, not only on the long distances, but also on the middle-short distances; on coastline urban areas and particularly on neighboring urban areas, but separated by the sea, the increase of the flows often involves greater risks of accident for the navigation (Lewison, 1978; Merrick et al., 2001; van Dorp et al., 2001). The risk of maritime accident results particularly high for the ro-ro ships. This papers clarify some aspects concerning the concept of risk and safety at sea dealing with some literature models. An application is proposed to the Messina Strait context that is the crossroad of elevated flows of traffic along two directions. The navigation safety in the Messina Strait has been analyzed with the support of a micro-simulation approach

Assessment of freight traffic flows and harmful emissions in euro-mediterranean context: scenario analyses based on a gravity model

AbstractMaritime transport contributes significantly to environmental pollution. The Mediterranean Sea Area is particularly affected by marine emissions from particulate matter, black carbon, nitrogen oxides and sulphur oxides. In addition to international and crossing traffic, the Mediterranean Sea is affected by the freight flows moved between its shores (in the North–South direction and vice versa), but also by transverse freight flows (East–West); these are freights transported through Short Sea Shipping. The Mediterranean Sea is the area where there is the highest concentration of short sea shipping in the EU-27. There are different types of Short Sea transport: container and bulk handling, general cargo ships and Ro-Ro transport. In such scenario, the analysis of trade flows as well as their spatial and geographical distribution, becomes fundamental. The paper proposes a gravity model for estimating trade flows, considering 18 countries boarding the Euro-Mediterranean Sea, in 2019. The proposed gravity model assumes that one of the main factors affecting trade is the economic dimension of a country which is directly related to the volume of imports and exports. In the paper, after a literature review on the gravity models, the illustration of the different phases investigation and construction of the database (specification, calibration and validation) to the definition and implementation of the proposed model is proposed. Scenario analyses are therefore proposed for assessing the environmental impacts generated by maritime transport in the Mediterranean basin as the freight flows vary. The analyses are carried out using a simulation approach which, starting from hypotheses on the economic and social development trends of the countries of the southern shore, made it possible to evaluate the variations in terms of freight flows and environmental impacts in terms of pollution

RILEVAMENTO DEI FLUSSI DI TRAFFICO MEDIANTE UAS

The traffic detection is important in transportation planning and traffic control. Many technologies have been developed in order to capture traffic information in automated way, as volume, headway  vehicle dimension, speed. Often they are expensive and require work to install sensors on the road. UAS (Unmanned Aerial Systems) are very interesting instruments, alternative to the usual traffic detectors, because they can give different traffic measures and are not invasive in terms of works.  In addition, they are not bound to a fixed site, but can move into space by remote control. In the paper, after a short and general description of the UAS, their benefits are highlighted for traffic monitoring as for scientific experimentation and research. They allow to overcome some of the main limits of traditional technologies. The focus is then on some experimental tests in three different contexts: urban road, road intersection, motorway section. Some traffic parameters have been carried out and several considerations have been derived, concerning potentialities and limits of the UAS utilisation in urban traffic context

Rigenerazione e accessibilità in città di mare. Saline Joniche come caso studio

Urban regeneration policies are today also oriented towards environmental sustainability and energy consumption containment. Attention is today addressed to policies aimed at promoting active mobility, reducing polluting emissions, cost savings, improving the relations between people, social inclusion and accessibility, to the expansion of green spaces. The paper proposes a research approach in which two thematic areas are associated in an integrated way: the regeneration of land and the accessibility to the same land, topics that are relevant today and that are part of Goal 11 of the 2030 Agenda which aims to make cities and human settlements inclusive, safe, resilient and sustainable. The approach is part of a more general framework of research focusing on "transport/land use" relationships, with its specific connotation based on quantitative indicators and measures. It is applied in particular to a port area affected close to large industrial settlement which has never come into operation and is characterised by evident damage. Measures aimed at the regeneration of the territory, the reorganisation of the facilities system, and the enhancement of the port infrastructure in an eco-sustainable perspective are outlined. The accessibility analyses underline in quantitative terms, through appropriate models, one of the key elements useful for measuring the impact of the seafront regeneration action. Rigenerazione e accessibilità in città di mare. Saline Joniche come caso studioLe politiche di rigenerazione urbana sono oggi orientate anche alla sostenibilità ambientale e al contenimento dei consumi energetici. E’ ormai consolidata l’attenzione alle politiche finalizzate alla promozione della mobilità attiva, alla  riduzione delle emissioni inquinanti, al risparmio, al miglioramento delle relazioni fra le persone, dell'inclusione sociale e dell’accessibilità, all’espansione degli spazi verdi. Nel paper è proposto un approccio di ricerca in cui sono associate due aree tematiche in forma integrata: la rigenerazione di un territorio e l’accessibilità al territorio stesso, temi oggi di rilievo e che si inseriscono all’interno dell’Obiettivo 11 dell’Agenda 2030 che mira a rendere le città e gli insediamenti umani inclusivi, sicuri, resilienti e sostenibili. L’approccio si basa sugli studi incentrati sul rapporto “trasporti/land use”, con una sua specifica connotazione fondata su indicatori e misure quantitative. L’applicazione riguarda un’area portuale interessata da un grande insediamento industriale mai entrato in funzione e caratterizzato da un degrado evidente. Sono delineate delle misure finalizzate alla rigenerazione del territorio, al riassetto del sistema viario, alla valorizzazione dell’infrastruttura portuale in un’ottica eco-sostenibile. Le analisi di accessibilità permettono di fare emergere in termini quantitativi, attraverso opportuni modelli, uno degli elementi chiave utili a misurare l’impatto dell’opera di rigenerazione del waterfront.Le politiche di rigenerazione urbana sono oggi orientate anche alla sostenibilità ambientale e al contenimento dei consumi energetici. E’ ormai consolidata l’attenzione alle politiche finalizzate alla promozione della mobilità attiva, alla  riduzione delle emissioni inquinanti, al risparmio, al miglioramento delle relazioni fra le persone, dell'inclusione sociale e dell’accessibilità, all’espansione degli spazi verdi. Nel paper è proposto un approccio di ricerca in cui sono associate due aree tematiche in forma integrata: la rigenerazione di un territorio e l’accessibilità al territorio stesso, temi oggi di rilievo e che si inseriscono all’interno dell’Obiettivo 11 dell’Agenda 2030 che mira a rendere le città e gli insediamenti umani inclusivi, sicuri, resilienti e sostenibili. L’approccio si basa sugli studi incentrati sul rapporto “trasporti/land use”, con una sua specifica connotazione fondata su indicatori e misure quantitative. L’applicazione riguarda un’area portuale interessata da un grande insediamento industriale mai entrato in funzione e caratterizzato da un degrado evidente. Sono delineate delle misure finalizzate alla rigenerazione del territorio, al riassetto del sistema viario, alla valorizzazione dell’infrastruttura portuale in un’ottica eco-sostenibile. Le analisi di accessibilità permettono di fare emergere in termini quantitativi, attraverso opportuni modelli, uno degli elementi chiave utili a misurare l’impatto dell’opera di rigenerazione del waterfront. Regeneration and Accessibility in Seaside Cities. Saline Joniche as a Case Study Urban regeneration policies are today also oriented towards environmental sustainability and energy consumption containment. Attention is today addressed to policies aimed at promoting active mobility, reducing polluting emissions, cost savings, improving the relations between people, social inclusion and accessibility, to the expansion of green spaces. The paper proposes a research approach in which two thematic areas are associated in an integrated way: the regeneration of land and the accessibility to the same land, topics that are relevant today and that are part of Goal 11 of the 2030 Agenda which aims to make cities and human settlements inclusive, safe, resilient and sustainable. The approach is part of a more general framework of research focusing on "transport/land use" relationships, with its specific connotation based on quantitative indicators and measures. It is applied in particular to a port area affected close to large industrial settlement which has never come into operation and is characterised by evident damage. Measures aimed at the regeneration of the territory, the reorganisation of the facilities system, and the enhancement of the port infrastructure in an eco-sustainable perspective are outlined. The accessibility analyses underline in quantitative terms, through appropriate models, one of the key elements useful for measuring the impact of the seafront regeneration action

EVALUATION OF SOCIO-ECONOMIС VARIABLES FOR THE CONSTANTINE TRAMWAY LINE

The Constantine tramway line in Algeria has many variables that can be analysed to assess the impact of the line. These variables include social ones, such as the rational supply of transport between different modes of travel, the place of people with reduced mobility in the supply and interior and exterior design. Moreover, the economic variables that are the most dominant in relation to its importance in the development of the economy of the city are the reliability and comfort made to the regularity of the transport time in relation to time savings and intermodality at stopping points. To this end, this article examines these different variables during several commissioning periods in order to determine the impact of the introduction of the tramway line in the Constantine metropolitan area. Its approach is carried out through a field survey, interviews and on-site observations with a population made up of users of different travel modes. The results confirm that the tramway line linking the city of Constantine and the new town of Ali Mendjeli has a strong effect on ridership. On the other hand, its effects seem minimal in terms of rational supply and intermodality between different travel modes. Meanwhile, reliability and regularity are topics that deserve to be explored. The accessibility of people with reduced mobility is considered a primary objective of the tramway system

Epidemiology of gastroenteropancreatic neuroendocrine neoplasms: a review and protocol presentation for bridging tumor registry data with the Italian association for neuroendocrine tumors (Itanet) national database

: Neuroendocrine neoplasms (NENs) are rare tumors with diverse clinical behaviors. Large databases like the Surveillance, Epidemiology, and End Results (SEER) program and national NEN registries have provided significant epidemiological knowledge, but they have limitations given the recent advancements in NEN diagnostics and treatments. For instance, newer imaging techniques and therapies have revolutionized NEN management, rendering older data less representative. Additionally, crucial parameters, like the Ki67 index, are missing from many databases. Acknowledging these gaps, the Italian Association for Neuroendocrine Tumors (Itanet) initiated a national multicenter prospective database in 2019, aiming to gather data on newly-diagnosed gastroenteropancreatic neuroendocrine (GEP) NENs. This observational study, coordinated by Itanet, includes patients from 37 Italian centers. The database, which is rigorously maintained and updated, focuses on diverse parameters including age, diagnostic techniques, tumor stage, treatments, and survival metrics. As of October 2023, data from 1,600 patients have been recorded, with an anticipation of reaching 3600 by the end of 2025. This study aims at understanding the epidemiology, clinical attributes, and treatment strategies for GEP-NENs in Italy, and to introduce the Itanet database project. Once comprehensive follow-up data will be acquired, the goal will be to discern predictors of treatment outcomes and disease prognosis. The Itanet database will offer an unparalleled, updated perspective on GEP-NENs, addressing the limitations of older databases and aiding in optimizing patient care. STUDY REGISTRATION: This protocol was registered in clinicaltriasl.gov (NCT04282083)