scholarly journals Assessing the impact of case mobility: issues and recommendations from Greece

2021 ◽  
Vol 68 (1) ◽  
pp. 1-12
Author(s):  
Athanasios Thanos Giannopoulos

AbstractThis paper is concerned with the assessment of future applications of CASE (Co-operative, Autonomous, Shared, and Electric) mobility—a term that is also taken to include the more traditionally known applications of ITS (Intelligent Transport Systems). It sets the objective of making such assessments more holistic and horizontal in nature because future CASE mobility applications will include many technologies and service concepts as an integrated whole serving specific mobility objective. Traditional evaluation methodologies will therefore have to be modified to account for this situation, and to this end, the paper focuses on assessing and adapting such “traditional” methodologies. It draws from the experience gained in Greece in the last decade when a substantial number of ITS applications were implemented and assessed, especially in the second largest urban area of the country, the city of Thessaloniki (part of the EU’s European Network of Living Labs). Four basic methodologies are selected: the use of KPIs (Key Performance Indicators), focused interviews, the CMME (CASE Mobility Matrix Evaluation), and the use of safety audits before and after the CASE mobility application. For the first three, the paper suggests specific indicators and/or content. It also gives an example of the use of CMME based on a use case from Thessaloniki. The contents and recommendations of this paper provide a better understanding of the emerging situation as regards CASE mobility applications and point to the need for establishing a timely and comprehensive CASE mobility evaluation framework at both national and European levels, for future implementations.

2020 ◽  
Vol 49 (1) ◽  
pp. 42-59
Author(s):  
Anastasios Skoufas ◽  
Socrates Basbas ◽  
Josep Maria Salanova Grau ◽  
Georgia Aifadopoulou

The present research has investigated the impact of a Cooperative – Intelligent Transport Systems service for increasing Rail – Road Level Crossing safety, in terms of driving dynamic of the taxi drivers who used the service at the city of Thessaloniki, Greece. The Cooperative – Intelligent Transport Systems service informed drivers when approaching a Rail – Road Level Crossing, through 6 different paths, at the western area of the city of Thessaloniki. The results were yielded after comparing two datasets concerning the use of the Cooperative – Intelligent Transport Systems service by 168 taxi drivers for 28 days and without the use of the Cooperative – Intelligent Transport Systems service by 15 taxi drivers for 25 days. Even if conclusions are contrasting for the different types of the Rail – Road Level Crossing transits, the findings highlight a relation between speed reduction with types of transits whose first road segment is rectilinear, during Cooperative – Intelligent Transport Systems service use, while minor differentiations are noticed for Rail – Road Level Crossing transits with sharp turns and stop signs.


2021 ◽  
Vol 13 (5) ◽  
pp. 2935
Author(s):  
Natalia Drop ◽  
Daria Garlińska

Using intelligent transport systems in cities is gaining popularity. The fundamental aim of their existence is to improve safety and traffic flow and prevent congestion in city centres. All people moving around the city, such as public transport passengers, as well as truck and emergency vehicle drivers and drivers of passenger vehicles, are users of intelligent transport systems. Research which was carried out for the article entirely concerns functioning and utility of intelligent transport systems from truck drivers’ experience. The main aim of the research was to evaluate services and tools within intelligent transport systems in European cities which are visited by Polish truck drivers. Our research indicates that most drivers (almost 98%) stated that they find intelligent transport systems useful and 92.5% of interviewed pointed that intelligent transport systems help with their everyday work duties. Of all the tools in the survey drivers agreed that variable content signs, accommodative traffic lights, and extra road illumination have most influence in road safety. Identifying the most useful and helpful tools of intelligent transport systems will allow to define their preferred development directions from truck drivers’ point of view.


2016 ◽  
Vol 8 (2) ◽  
pp. 107 ◽  
Author(s):  
Cristian Roman ◽  
Ruizhi Liao ◽  
Peter Ball ◽  
Shumao Ou

The Intelligent Transport Systems (ITS) wireless infrastructure needs to support various safety and non-safety services for both autonomous and non-autonomous vehicles.The existing wireless infrastructures can already be used for communicating with different mobile entities at various monetary costs.A packet scheduler, included in a shim layer between the network layer and the medium access (MAC) layer, which is able to schedule packets between uncoordinated Radio Access Technologies (RATs) without modification of the wireless standards, has been devised and its performance evaluated.In this paper, we focus on the influence of mobility type in heterogeneous wireless networks.Three cases are considered based on the mobility in the city: walking, cycling, and driving. Realistic simulations are performed by generating mobility traces of Oxford from Google Maps and overlaying the real locations of existing WiFi Access Points. Results demonstrate that the shim layer approach can accommodate different user profiles and can be a useful abstraction to support Intelligent Transport Systems where there is no coordination between different wireless operators.


Author(s):  
Georgyi Baranov ◽  
Tetyana Danylova

This article is devoted to the process of modeling dynamic systems of city intelligent transport systems (CITS) with the help of information technologies. The proposed means of fundamentally new integrated subsystems CITS, simultaneously covers arrays of heterogeneous data and use modern neural network technologies to provide information support for the management of transport systems. The safety of the ecological state as a result of the influence of urban traffic in the conditions of industrial centers was formalized for information technologies. Descriptions are executed as mathematical models of complex particles of objects of the city intellectual transport network with the use of heterogeneous fragments. Strategies and methods of systematic management are analyzed for solving complex problems of reducing the ecological load of the city. Ontological descriptions in basic model forms that are focused on ensuring the safety and ecology of urban applications to overcome contamination, risks and threats. This direction involves the creation of systems for automated management of transport infrastructure, which at the moment requires the solution of a range of scientific and technical tasks.The built-in neural network models of dependence will effectively solve planning problems with controlling influences on the infrastructure of urban intelligent transport systems, which will improve the characteristics of the traffic flow and reduce the environmental burden on the environment. The analysis of transport infrastructure and the activities of organizations that have a direct influence on it, has allowed us to propose a scheme for the use of heterogeneous information in the information support of the management of environmental safety and the throughput of the street-road network of urban intelligent transport systems. Keywords: information technology, transport system, situational management, risks, models of the situation.


2019 ◽  
Vol 126 ◽  
pp. 29-37
Author(s):  
Tomasz Kamiński ◽  
Małgorzata Pędzierska ◽  
Kamila Gąsiorek

The article describes the impact of information displayed to drivers on boards with variable content and presented on the static table, on drivers' decisions regarding the selection of an alternative route. The results of the research obtained in the RID 4D project titled "Impact of the use of Intelligent Transport Systems services on the level of road safety" financed by the National Center for Research and Development and the General Directorate of National Roads and Motorways (DZP/RID-I-41/7/NCBR / 2016 agreement). The article describes an attempt to assess the economic effects of implementing selected ITS solutions. Based on the impact of selected ITS solutions on the speed of driving, an assessment was made of the increase of safety on the road, using as a measure the number of people killed, severely and slightly injured. The whole article is summarized by conclusions.


2017 ◽  
Vol 18 (3) ◽  
pp. 28-32
Author(s):  
Adam Selwon ◽  
Kamil Roman

The dynamic development of urban areas has created the need to adapt computer systems used to increased passenger traffic. Increasingly common phenomenon of congestion, contributed to intensify efforts to improve the efficiency of the control flows in agglomerations. For this purpose cities begin to use more and more modern-solving software to improve the functioning of public transport. The aim of the article is to assess and review of current solutions that can be successfully implemented in communication systems, cities in Poland. The publication is also intended to determine the prospects for the development of intelligent transport systems in the future as well as the effects resulting from their continued use.


2021 ◽  
Vol 341 ◽  
pp. 00044
Author(s):  
Alina Kambur ◽  
Liliya Kushchenko ◽  
Ivan Novikov

The high degree of the trend in the development of the car park leads to significant problems: an increase in road accidents; reduced bandwidth, especially during peak hours; overrun and loss of time by road users; overconsumption of fuel and, as a result, deterioration of the environmental situation. One of the ways to solve the problem of traffic management is the use of intelligent transport systems (ITS). Examples of the use of ITS in various countries are given, improvements in the use of systems are considered. The system “Auto-Intellect” used on the territory of the Russian Federation is considered. On the example of the city of Belgorod, a method is proposed for using ITS by prohibiting vehicles from entering the city, taking into account certain state license plates.


2021 ◽  
Vol 13 (2) ◽  
pp. 2-13
Author(s):  
Attila M. Nagy ◽  
Bernát Wiandt ◽  
Vilmos Simon

One of the major problems of traffic in big cities today is the occurrence of congestion phenomena on the road network, which has several serious effects not only on the lives of drivers, but also on city inhabitants. In order to deal with these phenomena, it is essential to have an in-depth understanding of the processes that lead to the occurrence of congestion and its spilling over into contiguous areas of the city.


2003 ◽  
Vol 1848 (1) ◽  
pp. 94-100
Author(s):  
Henk J. van Zuylen ◽  
Yu Sen Chen

China is a developing country with a great need for an expansion of its transport system. Its policy aim is, among others, stimulating the role of the car in its transport system. That creates problems similar to those found in nearly all other countries in the world: congestion and inefficiency of the road transport system, especially in and around cities. To deal with those problems and to speed up the process of solving them, the Chinese cities cooperate with experts from other countries. Intelligent transport systems (ITS) are seen as a key to solving urban congestion problems. A cooperation agreement has been signed between the Chinese government, certain Chinese cities, and the Netherlands Ministry of Transport that aims to exchange experts, execute shared research and development, and provide training. The shared research shows that many of the traffic problems in Chinese cities differ very little from problems found in European cities: many of the problems concern particularly the interfaces between high-capacity urban freeways and the urban road network. The technology transfer was executed partly by providing training to Chinese experts. The training program is based on two principles: training for impact and training the trainers. The impact concerns participants applying what was learned from training to their daily practice, and their improved ability to work on solving traffic problems. Course participants are stimulated to become trainers themselves. The first results of the Chinese–Netherlands ITS training center are very promising.


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