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Prof. Eftihia Nathanail
Department of Civil Engineering, University of Thessaly, 38334 Volos, Greece

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0 Behavioral Modeling
0 Logistics
0 Transportation Planning
0 intelligent transportation systems
0 Transportation system design

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Journal article
Published: 30 November 2020 in Smart Cities
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Before implementing an Urban Freight Transport (UFT) solution, certainty is required about the effectiveness of the considered alternatives. Selecting an effective solution necessitates the engagement of all stakeholders involved in the management of the UFT system. The aim of the study is the formulation of a common assessment platform for facilitating the selection of the most appropriate UFT solution, taking into account the solutions’ effectiveness and the stakeholder perceptions and consensus. Solution maturity, social acceptance, and user uptake, which are considered as the main drivers of stakeholders’ engagement, are evaluated based on a real time Delphi survey, in parallel with solutions’ sustainability dimensions (economy and energy, environment, society, transport, and mobility). The Delphi method emerges as a suitable tool in this direction as stakeholders’ subjective judgments, and not analytical techniques, are required. The platform is demonstrated through the assessment of ten UFT solutions by 184 stakeholders (public authorities, supply chain operators, and other interested groups) who reside in cities across the world. The results of the demonstration showed that Intelligent Transportation Systems (ITS) for freight monitoring and electric vehicles are the highest rated solutions, while drone deliveries are the lowest, reaching respectively the highest and lowest consensus levels.

ACS Style

Ioannis Karakikes; Eftihia Nathanail. Using the Delphi Method to Evaluate the Appropriateness of Urban Freight Transport Solutions. Smart Cities 2020, 3, 1428 -1447.

AMA Style

Ioannis Karakikes, Eftihia Nathanail. Using the Delphi Method to Evaluate the Appropriateness of Urban Freight Transport Solutions. Smart Cities. 2020; 3 (4):1428-1447.

Chicago/Turabian Style

Ioannis Karakikes; Eftihia Nathanail. 2020. "Using the Delphi Method to Evaluate the Appropriateness of Urban Freight Transport Solutions." Smart Cities 3, no. 4: 1428-1447.

Conference paper
Published: 04 November 2020 in Advances in Intelligent Systems and Computing
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As urbanization increases by the years the needs of the society, in terms of quantity of urban freight deliveries, become more demanding. Urban freight transport and goods distribution become the main challenges that a city has to address, owing to the impacts that such operations create to traffic, environment and economy. Decision makers and transport operators have to seek into implementing smart solutions towards alleviating traffic congestion, accidents and environmental deterioration, maintaining at the same time a good level of service. The establishment of small Urban Consolidation Centers (UCC) in strategically selected locations, along with the use of flexible and environmentally friendly vehicles for “last mile distribution” can contribute positively towards the city’s sustainable mobility. The paper studies the establishment of small UCCs in Volos city and assesses their performance, implementing facility location models and multi-criteria analysis and feasible location models for location/allocation problems. Results show that the operation of two small UCCs saves great costs per mile of freight distribution, while the operation of more than two is not profitable.

ACS Style

Konstantinos Mpogas; Eftihia Nathanail; Ioannis Karakikes. Location Planning of Small Consolidation Centers in the City of Volos. Advances in Intelligent Systems and Computing 2020, 853 -867.

AMA Style

Konstantinos Mpogas, Eftihia Nathanail, Ioannis Karakikes. Location Planning of Small Consolidation Centers in the City of Volos. Advances in Intelligent Systems and Computing. 2020; ():853-867.

Chicago/Turabian Style

Konstantinos Mpogas; Eftihia Nathanail; Ioannis Karakikes. 2020. "Location Planning of Small Consolidation Centers in the City of Volos." Advances in Intelligent Systems and Computing , no. : 853-867.

Conference paper
Published: 04 November 2020 in Advances in Intelligent Systems and Computing
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The operation of minibuses as public transport modes worldwide is considered as a both efficient and effective way to meet the mobility needs of special population groups in urban areas. Minibus services are more flexible in terms of routing and scheduling as well as more affordable compared to regular bus public transport. This paper investigates the potential introduction and the characteristics of a minibus transit service in the Municipality of Kalamaria (~90,000 pop.) in Thessaloniki Greater Area, Greece. The research is based on a joint revealed and stated preference survey, which took place in 2015 and was addressed to the citizens of the Municipality, where such a minibus service was formerly active. The revealed preference survey mainly explored the current travel behavior of citizens and their level of acceptance for such a service in case of its reopening. The stated preference survey investigated the intentions and travel preferences of the respondents under different scenarios of travel time, service frequency and travel cost. A total of 140 questionnaires was collected and analyzed using descriptive and inferential statistics. Causal analysis was conducted to reveal interrelations of respondents’ willingness to use the service depending on the above attributes. According to the research findings, the perceived “quality of service” is strongly associated with safety, reliability and comfort of the transport mode used. Additionally, travel time is considered more important than cost. Although respondents seem to prefer a free of charge service, it was found that Willingness-to-Pay for minibus services ranges around 0.5 euros.

ACS Style

Maria Akrioti; Socrates Basbas; Georgios Georgiadis; Eftihia Nathanail. Investigation of Minibus Public Transport Service Characteristics in an Urban Area Through the Use of a Stated and Revealed Preference Survey. Advances in Intelligent Systems and Computing 2020, 11 -20.

AMA Style

Maria Akrioti, Socrates Basbas, Georgios Georgiadis, Eftihia Nathanail. Investigation of Minibus Public Transport Service Characteristics in an Urban Area Through the Use of a Stated and Revealed Preference Survey. Advances in Intelligent Systems and Computing. 2020; ():11-20.

Chicago/Turabian Style

Maria Akrioti; Socrates Basbas; Georgios Georgiadis; Eftihia Nathanail. 2020. "Investigation of Minibus Public Transport Service Characteristics in an Urban Area Through the Use of a Stated and Revealed Preference Survey." Advances in Intelligent Systems and Computing , no. : 11-20.

Conference paper
Published: 04 November 2020 in Advances in Intelligent Systems and Computing
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This paper examines the impact of gender on transit travelers’ quality assessment considering 26 indicators’ importance and performance ratings. Through an online survey and using a 5 point Likert scale, transit travelers were asked to rate both the importance and the performance they recognize for the examined quality indicators. The online survey was distributed to a list of contacts, organizations, businesses, universities and operations’ websites in three Greek cities (Athens, Thessaloniki and Volos), aiming to cover all modes and quality conditions someone may face in Greek transit operations. In total, 211 PT users (96 male and 116 female transit travelers) provided their feedback that was further analyzed, aiming to underline the impact of their gender on transit quality importance and performance assessments. Research results, showed that women attribute a higher importance than men on route and service related characteristics, cleanliness and safety and security related indicators, along with the availability of shelter and benches at stops, the ease of purchasing ticket and the use of ecological vehicles. Similarly, women recognize a higher performance for the ease of purchasing ticket. Research results explicitly analyze the gender impact on transit quality assessment, providing useful knowledge and insights for decision makers planning and operations.

ACS Style

Maria Tsami; Eftihia Nathanail. Gender Impact on Transit Quality of Service Importance and Performance Assessment. Advances in Intelligent Systems and Computing 2020, 3 -10.

AMA Style

Maria Tsami, Eftihia Nathanail. Gender Impact on Transit Quality of Service Importance and Performance Assessment. Advances in Intelligent Systems and Computing. 2020; ():3-10.

Chicago/Turabian Style

Maria Tsami; Eftihia Nathanail. 2020. "Gender Impact on Transit Quality of Service Importance and Performance Assessment." Advances in Intelligent Systems and Computing , no. : 3-10.

Conference paper
Published: 29 March 2020 in Inventive Computation and Information Technologies
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One of the most important sectors in a city’s economy is the sector of transportation and distribution of goods. However, such operations cause several problems such as traffic congestion and environmental deterioration. Urban Consolidation Centers (UCC) are logistic platforms aiming to rationalize goods distribution by minimizing the above impacts, satisfying at the same time stakeholders’ interests, such as public authorities, supply chain stakeholders (retailers, carriers and suppliers), consumers and civilians. This paper proposes establishment of a UCC in the vicinity of the city of Volos, where trucks unload their cargo and cross-docking activities take place before goods are directed to the urban area for final distribution. Urban distribution is undertaken by green vehicles, which are assumed to replace conventional delivery trucks, in order to reduce operational costs and impacts in the city from urban distribution movements. As Volos is a medium sized city, delivery of goods by cargo bikes and green vehicles is foreseen. Traffic and system performance impacts that result from the operation of the new system are compared with the case before the UCC establishment. All impacts are combined in a sole index (Logistics Sustainability Index) which comprises the comparison of the two cases.

ACS Style

Eftihia Nathanail; Thomas Terzakis; Dimitris Zerzis. Estimating the Sustainability Impacts of an Urban Consolidation Center in a Medium-Sized City. Inventive Computation and Information Technologies 2020, 277 -286.

AMA Style

Eftihia Nathanail, Thomas Terzakis, Dimitris Zerzis. Estimating the Sustainability Impacts of an Urban Consolidation Center in a Medium-Sized City. Inventive Computation and Information Technologies. 2020; ():277-286.

Chicago/Turabian Style

Eftihia Nathanail; Thomas Terzakis; Dimitris Zerzis. 2020. "Estimating the Sustainability Impacts of an Urban Consolidation Center in a Medium-Sized City." Inventive Computation and Information Technologies , no. : 277-286.

Conference paper
Published: 30 August 2019 in Algorithms and Data Structures
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Various road safety analyses prove that cell phone usage cause driver distraction which, in turn, has become a leading cause for crashes. Various studies have focused on different cell phone operations such as hand-held or hand-free conversation, number dialing and text writing and reading and examined how they affect driving performance. Research efforts have been also placed on investigating the effects of sociodemographic characteristics on distraction and related them to the reaction of the drivers under distraction and the resulting speed, lane changes, lateral placement, deceleration, incidents and many other variables. The primary aim of this paper is to implement a decision trees approach in predicting the degree of influence of text reading on driving performance and associate it with self-reported behavioral and sociodemographic attributes. Data were based on a sample of 203 taxi drivers in Honolulu, who drove on a realistic driving simulator. Driving performance measures were collected under non-distraction and text-reading conditions. Among them, line encroachment incident and maximum driving blind time changes were used in combination with sociodemographic characteristics (gender, age, experience, educational level, race) and behavioral constructs (past behavior, behavior, behavioral beliefs, control beliefs, risk appreciation and descriptive norms) and decision trees were built. The analysis revealed that important predictors for maximum driving blind time changes are sociodemographic and past behavior attributes. The accuracy of the prediction increases in the case of line encroachment incident changes, with the addition of behavioral beliefs, control beliefs, risk appreciation, descriptive norms and past behavior.

ACS Style

Eftihia G. Nathanail; Panos D. Prevedouros; Mintu Miah; Rafaela De Melo Barros. Predicting the Impact of Text-Reading Using Decision Trees. Algorithms and Data Structures 2019, 685 -696.

AMA Style

Eftihia G. Nathanail, Panos D. Prevedouros, Mintu Miah, Rafaela De Melo Barros. Predicting the Impact of Text-Reading Using Decision Trees. Algorithms and Data Structures. 2019; ():685-696.

Chicago/Turabian Style

Eftihia G. Nathanail; Panos D. Prevedouros; Mintu Miah; Rafaela De Melo Barros. 2019. "Predicting the Impact of Text-Reading Using Decision Trees." Algorithms and Data Structures , no. : 685-696.

Conference paper
Published: 24 January 2018 in Inventive Computation and Information Technologies
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Urban road freight transportation significantly affects the quality of life in urban areas. City logistics constitute a major component in the urban economy, and when smartly implemented they may contribute in the city sustainability and livability by alleviating traffic congestion and mitigating emissions and noise impacts. The present research aims at deepening the knowledge and understanding of urban freight transportation (UFT), and enabling guidance provision for selecting and implementing effective and sustainable policies and measures in a city. This is seen from the prism of an integrated evaluation framework, which has been developed for city logistics policies and measures. The framework assesses the complexity of UFT systems, through selected performance indicators, taking into account divergent stakeholder interests, conflicting business models and operations. Evaluation components are formulated in a hierarchical process; sustainability disciplines (economy and energy, environment, transportation and mobility, society), applicability enablers (policy and measure maturity, social acceptance and user uptake), criteria and indicators, capturing the lifecycle impact of the policies and measures. An index is estimated and reflects each evaluation component and stakeholder category; the overall performance of the policy and measure for the city is depicted in the Logistics Sustainability Index.

ACS Style

Eftihia Nathanail. A Multistakeholders Multicriteria Decision Support Platform for Assessing Urban Freight Transport Measures. Inventive Computation and Information Technologies 2018, 17 -31.

AMA Style

Eftihia Nathanail. A Multistakeholders Multicriteria Decision Support Platform for Assessing Urban Freight Transport Measures. Inventive Computation and Information Technologies. 2018; ():17-31.

Chicago/Turabian Style

Eftihia Nathanail. 2018. "A Multistakeholders Multicriteria Decision Support Platform for Assessing Urban Freight Transport Measures." Inventive Computation and Information Technologies , no. : 17-31.

Journal article
Published: 01 December 2016 in Journal of Safety Research
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The theoretical and applied implications of alternative research designs and their applicability in the evaluation of road safety campaigns are provided by this study.

ACS Style

Giannis Adamos; Eftihia Nathanail. Predicting the effectiveness of road safety campaigns through alternative research designs. Journal of Safety Research 2016, 59, 83 -95.

AMA Style

Giannis Adamos, Eftihia Nathanail. Predicting the effectiveness of road safety campaigns through alternative research designs. Journal of Safety Research. 2016; 59 ():83-95.

Chicago/Turabian Style

Giannis Adamos; Eftihia Nathanail. 2016. "Predicting the effectiveness of road safety campaigns through alternative research designs." Journal of Safety Research 59, no. : 83-95.