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Andreas Nikiforiadis
School of Rural and Surveying Engineering, Faculty of Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece

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Journal article
Published: 07 June 2021 in Social Sciences
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Most safety concerns for pedestrian trips arise during road crossing, due to the interaction of pedestrians with motorized vehicles. This present paper attempts to explore the factors that have significant impact on pedestrians’ crossing behavior, and to identify the group of pedestrians that appear to be the most prone to crossing a road during the first five seconds of the red phase. In this context, observations were conducted in twelve signalized crossings in one-way roads, in the city of Thessaloniki, Greece. The collected data (600 observations of crossing pedestrians) were analyzed statistically; more specifically, the observations were analyzed through descriptive statistics, and a classification tree was developed for predicting pedestrians’ decisions. The results indicate that pedestrians’ crossing behavior is most of all affected by the behavior of other pedestrians in the signalized crossing. Also, the number of traffic lanes has an impact on pedestrians’ decision to cross the road during the first five seconds of the red-light phase.

ACS Style

Iliani Anapali; Socrates Basbas; Andreas Nikiforiadis. Pedestrians’ Crossing Dilemma during the First Seconds of the Red-Light Phase. Social Sciences 2021, 10, 213 .

AMA Style

Iliani Anapali, Socrates Basbas, Andreas Nikiforiadis. Pedestrians’ Crossing Dilemma during the First Seconds of the Red-Light Phase. Social Sciences. 2021; 10 (6):213.

Chicago/Turabian Style

Iliani Anapali; Socrates Basbas; Andreas Nikiforiadis. 2021. "Pedestrians’ Crossing Dilemma during the First Seconds of the Red-Light Phase." Social Sciences 10, no. 6: 213.

Journal article
Published: 21 March 2021 in Transportation Research Part D: Transport and Environment
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Micromobility and especially e-scooter sharing have recently attracted a lot of attention, due to the rapid spreading of e-scooters in many cities around the world. However, many local authorities have not yet been prepared for efficiently integrating e-scooters in their transport systems and the exact impact of e-scooters is still unclear. It is therefore essential to understand the way e-scooters operate and their users’ profile. To address these questions, a study was designed based on 578 questionnaires (271 by e-scooter users and 307 by non-users) in the city of Thessaloniki, Greece. The analysis utilized a classification tree model for identifying the characteristics of people that are attracted by e-scooters (i.e., used them more than once) and a latent variable logit model for understanding the attributes of the regular e-scooter users. The results show that shared e-scooters mostly replaced walking and public transport trips; therefore, the positive impact of e-scooters on the environment is questioned. Also, the results indicate that people traveling with bicycle or motorcycle were not at all attracted by e-scooters. Moreover, females seem to be less keen on using e-scooters compared to males, while people living downtown are more regular users compared with those living in longer distances from the city center. These findings can aid policymakers in shaping the manner with which e-scooters can be incorporated in their cities.

ACS Style

Andreas Nikiforiadis; Evangelos Paschalidis; Nikiforos Stamatiadis; Alexandra Raptopoulou; Athanasia Kostareli; Socrates Basbas. Analysis of attitudes and engagement of shared e-scooter users. Transportation Research Part D: Transport and Environment 2021, 94, 102790 .

AMA Style

Andreas Nikiforiadis, Evangelos Paschalidis, Nikiforos Stamatiadis, Alexandra Raptopoulou, Athanasia Kostareli, Socrates Basbas. Analysis of attitudes and engagement of shared e-scooter users. Transportation Research Part D: Transport and Environment. 2021; 94 ():102790.

Chicago/Turabian Style

Andreas Nikiforiadis; Evangelos Paschalidis; Nikiforos Stamatiadis; Alexandra Raptopoulou; Athanasia Kostareli; Socrates Basbas. 2021. "Analysis of attitudes and engagement of shared e-scooter users." Transportation Research Part D: Transport and Environment 94, no. : 102790.

Journal article
Published: 03 February 2021 in Transportation Research Procedia
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Bike-sharing systems are an important part of many cities’ transportation systems and they are constantly being introduced in more and more cities worldwide. Thus, the strategic decisions for these systems are essential both for their successful operation and the efficient operation of cities’ transportation systems. The present paper aims to develop a methodological approach for determining the optimal locations for installing bike-sharing stations, taking into account the operators’ perspective. Through the developed methodological approach, it is sought to select locations which maximize the demand and the area (built environment) coverage and at the same time minimize the needs for bike redistribution within the day. Thus, the optimal selection of locations for bike-sharing stations is being set as a multi-objective optimization problem. The proposed methodological approach is being applied in the city of Thessaloniki, Greece, where a dock-based and a dockless bike-sharing system operate. The results indicate that the selected stations slightly vary based on the assigned weights in each of the three objectives; higher weight in the demand coverage objective results in more selected stations close to the city’s waterfront where bicycling demand is higher, while higher weight in the area coverage results in more selected stations in the inner city.

ACS Style

Andreas Nikiforiadis; Georgia Aifadopoulou; Josep Maria Salanova Grau; Neofytos Boufidis. Determining the optimal locations for bike-sharing stations: methodological approach and application in the city of Thessaloniki, Greece. Transportation Research Procedia 2021, 52, 557 -564.

AMA Style

Andreas Nikiforiadis, Georgia Aifadopoulou, Josep Maria Salanova Grau, Neofytos Boufidis. Determining the optimal locations for bike-sharing stations: methodological approach and application in the city of Thessaloniki, Greece. Transportation Research Procedia. 2021; 52 ():557-564.

Chicago/Turabian Style

Andreas Nikiforiadis; Georgia Aifadopoulou; Josep Maria Salanova Grau; Neofytos Boufidis. 2021. "Determining the optimal locations for bike-sharing stations: methodological approach and application in the city of Thessaloniki, Greece." Transportation Research Procedia 52, no. : 557-564.

Journal article
Published: 03 January 2021 in Sustainability
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Pedestrians–cyclists shared spaces, sidewalks and streets are now a commonly implemented urban design solution in many cities, due to the willingness to promote sustainable mobility and the non-availability of public space. The proper design and management of these infrastructures requires an accurate evaluation of their performance. The most dominant evaluation metric is the level of service (LOS) and various methodologies have been proposed in the literature for its assessment in infrastructures that are being used by pedestrians, cyclists or by both of these two types of users. The present paper gathers and presents various methodologies, and it applies some of them on two pedestrians-cyclists shared spaces in a medium-sized city in Greece. The outcomes of the methodologies are being compared both among themselves and in relation to the opinions of the users, who participated in a questionnaire survey. The review of the literature, along with the application of some of the methodologies, leads to a fruitful discussion, which sets the groundwork for future research in the field of LOS and it also assists practitioners in selecting the appropriate methodologies for the assessment of pedestrian–cyclists shared spaces.

ACS Style

Andreas Nikiforiadis; Socrates Basbas; Foteini Mikiki; Aikaterini Oikonomou; Efrosyni Polymeroudi. Pedestrians-Cyclists Shared Spaces Level of Service: Comparison of Methodologies and Critical Discussion. Sustainability 2021, 13, 361 .

AMA Style

Andreas Nikiforiadis, Socrates Basbas, Foteini Mikiki, Aikaterini Oikonomou, Efrosyni Polymeroudi. Pedestrians-Cyclists Shared Spaces Level of Service: Comparison of Methodologies and Critical Discussion. Sustainability. 2021; 13 (1):361.

Chicago/Turabian Style

Andreas Nikiforiadis; Socrates Basbas; Foteini Mikiki; Aikaterini Oikonomou; Efrosyni Polymeroudi. 2021. "Pedestrians-Cyclists Shared Spaces Level of Service: Comparison of Methodologies and Critical Discussion." Sustainability 13, no. 1: 361.

Conference paper
Published: 04 November 2020 in Advances in Intelligent Systems and Computing
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Recently, the share of bicycles among transportation modes has been rising. This is also the case in university campuses that have seen an increase of bicycling as a transport mode. Transportation authorities globally encourage bicycling as a way for pollution reduction and alleviation of traffic congestion. However, lack of bicycle facilities could significantly hinder increase in bicycling levels. This study used in-person surveys to evaluate the attitudes and desires of bicyclists in two university campuses in Greece: Thessaloniki and Volos. The goal of the survey was to identify barriers to bicycling in both cities and pinpoint facility aspects that could be improved. Descriptive statistics and hypothesis testing were utilized in the analysis of the survey data to determine the level of agreement among participant responses and document their attitudes and preferences. Lack of bicycling facilities was the main impediment that respondents in both cities identified: a finding that agrees with prior research. In addition, the aggressive behavior of car drivers is considered an important obstacle in both cities. The survey findings support to the notion that bicyclists everywhere have similar attitudes about what the types of improvements required for increasing bicycling and enhancing their experiences. In addition, local conditions and practices have an impact on the relevance of specific issues.

ACS Style

Nikiforos Stamatiadis; Andreas Nikiforiadis; Socrates Basbas; Pantelis Kopelias; Elpida Karantagli; Anastasia Sitra; Nikos Mantas. Attitudes and Preferences of University Student Bicyclists: The Tale of Two Greek Cities. Advances in Intelligent Systems and Computing 2020, 945 -953.

AMA Style

Nikiforos Stamatiadis, Andreas Nikiforiadis, Socrates Basbas, Pantelis Kopelias, Elpida Karantagli, Anastasia Sitra, Nikos Mantas. Attitudes and Preferences of University Student Bicyclists: The Tale of Two Greek Cities. Advances in Intelligent Systems and Computing. 2020; ():945-953.

Chicago/Turabian Style

Nikiforos Stamatiadis; Andreas Nikiforiadis; Socrates Basbas; Pantelis Kopelias; Elpida Karantagli; Anastasia Sitra; Nikos Mantas. 2020. "Attitudes and Preferences of University Student Bicyclists: The Tale of Two Greek Cities." Advances in Intelligent Systems and Computing , no. : 945-953.

Conference paper
Published: 04 November 2020 in Advances in Intelligent Systems and Computing
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Micromobility, defined as short-distance transport, is recently experiencing a global growth. The primary goal of this new mobility trend is to provide environmentally friendly options for trips that cannot be accomplished with public transport and reduce automobile dependence. A popular transport mode is electric scooters (e-scooters) and they have been making inroads in several countries and cities on a global scale. However, there is little guidance regarding their operations. The purpose of this research is to evaluate the users’ attitudes and behavior of e-scooters in Thessaloniki, Greece. In-person and electronic surveys were completed targeting persons who have used an e-scooter more than once. The findings indicate that users most frequently ride on bicycle lanes and on roads without bike lane, while they prefer to use them for recreational purposes and not for commuting. Concerning the issues that would prevent them from using an e-scooter, greater importance is assigned to the bad behavior of car drivers, while bicycle lanes is considered the most efficient way for improving the use of e-scooters. Finally, slight differences were found on the behavior of users based on their age and gender, but people of different age and gender share similar attitudes.

ACS Style

Alexandra Raptopoulou; Socrates Basbas; Nikiforos Stamatiadis; Andreas Nikiforiadis. A First Look at E-Scooter Users. Advances in Intelligent Systems and Computing 2020, 882 -891.

AMA Style

Alexandra Raptopoulou, Socrates Basbas, Nikiforos Stamatiadis, Andreas Nikiforiadis. A First Look at E-Scooter Users. Advances in Intelligent Systems and Computing. 2020; ():882-891.

Chicago/Turabian Style

Alexandra Raptopoulou; Socrates Basbas; Nikiforos Stamatiadis; Andreas Nikiforiadis. 2020. "A First Look at E-Scooter Users." Advances in Intelligent Systems and Computing , no. : 882-891.

Conference paper
Published: 04 November 2020 in Advances in Intelligent Systems and Computing
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Micromobility aims to provide environmentally friendly options for trips that cannot be accomplished with public transport and reduce automobile dependence. The most recent transport mode for accomplishing such trips is the electric scooter (e-scooter) and they have flooded several countries and cities taking a significant share of trips. However, there is little guidance regarding their operations and initial observations demonstrate public disdain. This article deals with the evaluation of the public opinion in regard to e-scooters based on those who do not use them. To solicit input, an in-person and an electronic questionnaire were used in Thessaloniki, Greece. Statistical analysis of the collected data was undertaken to establish possible pattern of public opinion and identify situations of e-scooters that cause problems in pedestrian and motor vehicle traffic. Furthermore, the lack of infrastructure, which is a deterrent to e-scooter use, and the absence of a legislative framework that sets out the rules for traffic seem to be main concerns. Finally, the surveys noted that e-scooters will be promoted and integrated into traffic by designing and building adequate infrastructure, training users in Highway Code and imposing fines on offenders.

ACS Style

Athanasia Kostareli; Socrates Basbas; Nikiforos Stamatiadis; Andreas Nikiforiadis. Attitudes of E-Scooter Non-users Towards Users. Advances in Intelligent Systems and Computing 2020, 87 -96.

AMA Style

Athanasia Kostareli, Socrates Basbas, Nikiforos Stamatiadis, Andreas Nikiforiadis. Attitudes of E-Scooter Non-users Towards Users. Advances in Intelligent Systems and Computing. 2020; ():87-96.

Chicago/Turabian Style

Athanasia Kostareli; Socrates Basbas; Nikiforos Stamatiadis; Andreas Nikiforiadis. 2020. "Attitudes of E-Scooter Non-users Towards Users." Advances in Intelligent Systems and Computing , no. : 87-96.

Journal article
Published: 05 October 2020 in Sustainability
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The COVID-19 pandemic had a significant effect in urban mobility, while essential changes are being observed in travelers’ behavior. Travelers in many cases shifted to other transport modes, especially walking and cycling, for minimizing the risk of infection. This study attempts to investigate the impact that COVID-19 had on travelers’ perceptions towards bike-sharing systems and whether the pandemic could result in a greater or lesser share of trips that are being conducted through shared bikes. For that reason, a questionnaire survey was carried out in the city of Thessaloniki, Greece, and the responses of 223 people were analyzed statistically. The results of the analysis show that COVID-19 will not affect significantly the number of people using bike-sharing for their trips. However, for a proportion of people, bike-sharing is now more attractive. Moreover, the results indicate that bike-sharing is now more likely to become a more preferable mobility option for people who were previously commuting with private cars as passengers (not as drivers) and people who were already registered users in a bike-sharing system. The results also provide evidence about the importance of safety towards COVID-19 for engaging more users in bike-sharing, in order to provide them with a safe mobility option and contribute to the city’s resilience and sustainability.

ACS Style

Andreas Nikiforiadis; Georgia Ayfantopoulou; Afroditi Stamelou. Assessing the Impact of COVID-19 on Bike-Sharing Usage: The Case of Thessaloniki, Greece. Sustainability 2020, 12, 8215 .

AMA Style

Andreas Nikiforiadis, Georgia Ayfantopoulou, Afroditi Stamelou. Assessing the Impact of COVID-19 on Bike-Sharing Usage: The Case of Thessaloniki, Greece. Sustainability. 2020; 12 (19):8215.

Chicago/Turabian Style

Andreas Nikiforiadis; Georgia Ayfantopoulou; Afroditi Stamelou. 2020. "Assessing the Impact of COVID-19 on Bike-Sharing Usage: The Case of Thessaloniki, Greece." Sustainability 12, no. 19: 8215.

Conference paper
Published: 02 October 2020 in Transactions on Petri Nets and Other Models of Concurrency XV
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In recent years, many efforts are being made for the promotion of active modes of transport. Due to this reason, as well as due to the limited available public space, the co-existence of pedestrians and cyclists is a very common phenomenon, which requires extensive investigation. The design and implementation of pedestrians-cyclists shared use space is a widely used technical choice, when the road infrastructure is unsuitable for hosting cyclists and thus the separation of cyclists from the motorized traffic is considered advisable. However, the co-existence of pedestrians and cyclists is not always harmonious and the interactions between them can have a negative impact in their perceived comfort and safety. The present research aims to quantify this negative impact of the various kinds of interactions, by considering the users’ attitudes and by applying the Analytical Hierarchy Process method. The attitudes of users were captured through questionnaire surveys, that were directed to both pedestrians and cyclists in the city of Palermo, Italy. The results of the analysis are being compared with the results of a previous attempt to quantify the impact of interactions. Through this comparison, useful conclusions and notes for further research are deriving.

ACS Style

Andreas Nikiforiadis; Socrates Basbas; Tiziana Campisi; Giovanni Tesoriere; Marina Iliana Garyfalou; Iasonas Meintanis; Thomas Papas; Mirto Trouva. Quantifying the Negative Impact of Interactions Between Users of Pedestrians-Cyclists Shared Use Space. Transactions on Petri Nets and Other Models of Concurrency XV 2020, 12250, 809 -818.

AMA Style

Andreas Nikiforiadis, Socrates Basbas, Tiziana Campisi, Giovanni Tesoriere, Marina Iliana Garyfalou, Iasonas Meintanis, Thomas Papas, Mirto Trouva. Quantifying the Negative Impact of Interactions Between Users of Pedestrians-Cyclists Shared Use Space. Transactions on Petri Nets and Other Models of Concurrency XV. 2020; 12250 ():809-818.

Chicago/Turabian Style

Andreas Nikiforiadis; Socrates Basbas; Tiziana Campisi; Giovanni Tesoriere; Marina Iliana Garyfalou; Iasonas Meintanis; Thomas Papas; Mirto Trouva. 2020. "Quantifying the Negative Impact of Interactions Between Users of Pedestrians-Cyclists Shared Use Space." Transactions on Petri Nets and Other Models of Concurrency XV 12250, no. : 809-818.

Journal article
Published: 25 April 2020 in Transportation Research Procedia
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Bike-sharing systems operate in a number of cities around the world, aiming to promote sustainable urban mobility. Successful management of these systems is to a large extent linked to the optimal distribution of bicycles, which implies the accurate prediction of demand for rentals and returns at each station within the day. For this purpose, a tool for predicting bike demand for rentals and returns and visualizing the results has been developed and is presented in the present paper. Different predictive models based on machine learning regression algorithms are trained and evaluated. The tool is tested using data from the bike-sharing system that operates in the city of Thessaloniki, Greece for which the results indicate that the tested system’s utilization is highly correlated to the location and spatial characteristics of a station, as well as the season of the year and time of day. The proposed machine learning algorithms use custom engineered features to learn those correlations and achieve the highest possible performance.

ACS Style

Neofytos Boufidis; Andreas Nikiforiadis; Katerina Chrysostomou; Georgia Aifadopoulou. Development of a station-level demand prediction and visualization tool to support bike-sharing systems’ operators. Transportation Research Procedia 2020, 47, 51 -58.

AMA Style

Neofytos Boufidis, Andreas Nikiforiadis, Katerina Chrysostomou, Georgia Aifadopoulou. Development of a station-level demand prediction and visualization tool to support bike-sharing systems’ operators. Transportation Research Procedia. 2020; 47 ():51-58.

Chicago/Turabian Style

Neofytos Boufidis; Andreas Nikiforiadis; Katerina Chrysostomou; Georgia Aifadopoulou. 2020. "Development of a station-level demand prediction and visualization tool to support bike-sharing systems’ operators." Transportation Research Procedia 47, no. : 51-58.

Journal article
Published: 25 April 2020 in Transportation Research Procedia
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There is a great number of studies which have proved that a new or improved transport system has an important impact on land uses and real estate prices. While there are many studies which examine the effect of a new urban public transport system on the values of neighbouring properties, the number of researches which focus on the identification of the benefits that businesses can expect is rather limited. The objective of the present paper is to identify parameters which have a significant impact on the business revenue, as well as to quantify that impact, focusing on the city of Thessaloniki, Greece, where a metro system is under construction A questionnaire-based survey took place, addressed to business enterprise owners and professionals in the surrounding area of ten of the planned locations of Thessaloniki metro stations. The data collected by this survey were reinforced with additional attributes of the businesses, such as their distance from the nearest metro station, and a statistical analysis has been conducted, utilizing also regression modelling techniques The results indicate that more benefits can be expected for businesses which are located closer to the metro stations, especially in areas with limited parking availability. The benefits are estimated to be higher for the land use category that includes restaurants/café/bars. Models of that type can be very useful in cases of implementing alternative funding/financing methods, such as Value Capture. For the implementation of such methods it is very important to accurately estimate the benefits that all the parties involved in an investment will gain.

ACS Style

Andreas Nikiforiadis; Anastasia Roukouni; Socrates Basbas; Katerina Chrysostomou. Do businesses expect benefits from the existence of metro stations in their area? A case study in Thessaloniki, Greece. Transportation Research Procedia 2020, 47, 259 -266.

AMA Style

Andreas Nikiforiadis, Anastasia Roukouni, Socrates Basbas, Katerina Chrysostomou. Do businesses expect benefits from the existence of metro stations in their area? A case study in Thessaloniki, Greece. Transportation Research Procedia. 2020; 47 ():259-266.

Chicago/Turabian Style

Andreas Nikiforiadis; Anastasia Roukouni; Socrates Basbas; Katerina Chrysostomou. 2020. "Do businesses expect benefits from the existence of metro stations in their area? A case study in Thessaloniki, Greece." Transportation Research Procedia 47, no. : 259-266.

Journal article
Published: 20 January 2020 in Journal of Cleaner Production
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The limited available public space and the intention to promote active mobility, enhance the importance and the interest about pedestrians-cyclists shared spaces. This paper proposes a new methodology for determining the level of service (LOS) in shared spaces, based on the hindrance concept. In this context: a) the types of events between the users were identified, b) regression tree models for predicting the events’ frequency were developed, c) weights were assigned to the various events, based on their negative impact on users’ perceived comfort and safety. The assignment of weights consists a novelty of the proposed methodology since there is no other study attempting to identify their negative impact. Eventually, a mathematical formula suitable for optimizing the design and management of pedestrians-cyclists shared spaces, by minimizing users’ hindrance, is being produced. The objective of the methodology is to be a reliable and easy to use tool for planners and decision-makers. From the application of the methodology in the city of Thessaloniki, Greece, it is identified that: a) the pedestrian and bicycle flow rates play a decisive role in the frequency of experiencing events, b) “delayed passing” is the most disturbing situation for both pedestrians and cyclists, c) “passings” have similar negative impact on users’ perceptions with “meetings”.

ACS Style

Andreas Nikiforiadis; Socrates Basbas; Marina Iliana Garyfalou. A methodology for the assessment of pedestrians-cyclists shared space level of service. Journal of Cleaner Production 2020, 254, 120172 .

AMA Style

Andreas Nikiforiadis, Socrates Basbas, Marina Iliana Garyfalou. A methodology for the assessment of pedestrians-cyclists shared space level of service. Journal of Cleaner Production. 2020; 254 ():120172.

Chicago/Turabian Style

Andreas Nikiforiadis; Socrates Basbas; Marina Iliana Garyfalou. 2020. "A methodology for the assessment of pedestrians-cyclists shared space level of service." Journal of Cleaner Production 254, no. : 120172.

Journal article
Published: 07 December 2019 in Algorithms
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Many cities have already installed bike-sharing systems for several years now, but especially in recent years with the rise of micro-mobility, many efforts are being made worldwide to improve the operation of these systems. Technology has an essential role to play in the success of micro-mobility schemes, including bike-sharing systems. In this paper, it is examined if a state-of-the-art mobile application (app) can contribute to increasing the usage levels of such a system. It is also seeking to identify groups of travelers, who are more likely to be affected by the sophisticated app. With this aim, a questionnaire survey was designed and addressed to the users of the bike-sharing system of the city of Thessaloniki, Greece, as well as to other residents of the city. Through a descriptive analysis, the most useful services that an app can provide are identified. Most importantly, two different types of predictive models (i.e., classification tree and binary logit model) were applied in order to identify groups of users who are more likely to shift to or to use the bike-sharing system due to the sophisticated app. The results of the two predictive models confirm that people of younger ages and those who are not currently users of the system are those most likely to be attracted to the system due to such an app. Other factors, such as car usage frequency, education, and income also appeared to have slight impact on travelers’ intention to use the system more often due to the app.

ACS Style

Andreas Nikiforiadis; Katerina Chrysostomou; Georgia Aifadopoulou. Exploring Travelers’ Characteristics Affecting their Intention to Shift to Bike-Sharing Systems due to a Sophisticated Mobile App. Algorithms 2019, 12, 264 .

AMA Style

Andreas Nikiforiadis, Katerina Chrysostomou, Georgia Aifadopoulou. Exploring Travelers’ Characteristics Affecting their Intention to Shift to Bike-Sharing Systems due to a Sophisticated Mobile App. Algorithms. 2019; 12 (12):264.

Chicago/Turabian Style

Andreas Nikiforiadis; Katerina Chrysostomou; Georgia Aifadopoulou. 2019. "Exploring Travelers’ Characteristics Affecting their Intention to Shift to Bike-Sharing Systems due to a Sophisticated Mobile App." Algorithms 12, no. 12: 264.

Journal article
Published: 08 February 2019 in Sustainable Cities and Society
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Transport policy objectives, as well as lack of space in the built environment make clear that the coexistence of pedestrians and cyclists is an important issue. For that reason, a survey was conducted on two sidewalks and one pedestrian street in the city of Thessaloniki, Greece where the cycling volumes and cycling experience are still low; however efforts are being made to promote active transport modes (e.g. cycling, walking). In the analysis made in this paper, an ordinal regression model was developed that utilizes questionnaire survey data and field measurements. The aim of the ordinal regression model is to identify and quantify the impact of geometric, functional and social factors on pedestrians' perception about the presence of bicycles and the infrastructure level of service (LOS). The results show a clear difference in the perceptions according to gender and age. Females tend to perceive lower LOS and the same applies for the younger people. Regarding the geometric and functional attributes, pedestrian unit flow rate has been found to affect perceived LOS to a large extent. Another conclusion that emerges from the analysis is the importance of a proper distribution of the available space between pedestrians and cyclists, as over-dimensioning of the bicycle lane has a significant impact on the perceptions of pedestrians, regardless the bicycle volumes.

ACS Style

Andreas Nikiforiadis; Socrates Basbas. Can pedestrians and cyclists share the same space? The case of a city with low cycling levels and experience. Sustainable Cities and Society 2019, 46, 101453 .

AMA Style

Andreas Nikiforiadis, Socrates Basbas. Can pedestrians and cyclists share the same space? The case of a city with low cycling levels and experience. Sustainable Cities and Society. 2019; 46 ():101453.

Chicago/Turabian Style

Andreas Nikiforiadis; Socrates Basbas. 2019. "Can pedestrians and cyclists share the same space? The case of a city with low cycling levels and experience." Sustainable Cities and Society 46, no. : 101453.

Journal article
Published: 07 January 2019 in Social Sciences
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In recent years, the relationship between transportation and subjective well-being has been a major subject. Well-being is a factor that can affect travelers’ psychology and transport mode choice. For this reason, policymakers have attempted to improve travelers’ subjective well-being and promote sustainable modes of transport. For a better understanding of these factors, a questionnaire-based survey was conducted to identify the travel eudaimonia aspect of subjective well-being (comfort, safety, autonomy, self-confidence, physical, and mental health), for the various means of transport in the city of Thessaloniki. During the survey, 300 valid questionnaires were completed. The collection of the above data was followed by statistical analysis. The aim of the analysis was to identify the factors of travel eudaimonia that contributed to the mode choice. For that reason, four ordinal regression models were developed to determine how travel eudaimonia affected the usage frequency of the four available means of transport in the city of Thessaloniki (i.e., private car, bicycle, public transport, walking). Walking was rated higher than other modes in all factors, whilst cycling was rated high in physical and mental health, self-confidence, and autonomy, but low in comfort and safety. Public transport scored very low in all factors, demonstrating the poor quality of service provided by the city’s public transport. Moreover, from the ordinal regression models’ results, it could be demonstrated that travel eudaimonia factors had a significant role to play in mode choice. Recognizing the impact of these factors on transport mode choice is particularly useful for policymakers, researchers, and engineers, as it helps them to make informed decisions about what improvements are needed to promote sustainable modes of transport (mainly walking, cycling, and secondarily, public transport).

ACS Style

Panagiotis Vaitsis; Socrates Basbas; Andreas Nikiforiadis. How Eudaimonic Aspect of Subjective Well-Being Affect Transport Mode Choice? The Case of Thessaloniki, Greece. Social Sciences 2019, 8, 9 .

AMA Style

Panagiotis Vaitsis, Socrates Basbas, Andreas Nikiforiadis. How Eudaimonic Aspect of Subjective Well-Being Affect Transport Mode Choice? The Case of Thessaloniki, Greece. Social Sciences. 2019; 8 (1):9.

Chicago/Turabian Style

Panagiotis Vaitsis; Socrates Basbas; Andreas Nikiforiadis. 2019. "How Eudaimonic Aspect of Subjective Well-Being Affect Transport Mode Choice? The Case of Thessaloniki, Greece." Social Sciences 8, no. 1: 9.

Conference paper
Published: 12 December 2018 in Advances in Intelligent Systems and Computing
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Students’ behavior and perceptions at pedestrian crossings is investigated in the framework of the present paper. The research concerns five pedestrian crossings at signalized intersections which are located in the road network around the Aristotle University of Thessaloniki. A total number of 500 questionnaires addressed to students using the specific crossings were collected during spring 2013. In addition, counts concerning pedestrian flows were made as well as pedestrians’ observations regarding their distraction while they were using the crossing. Moreover, traffic data, such as volume and free flow speed, used for the statistical analysis. Descriptive statistics used in order to describe pedestrians’ behavior and views towards the specific pedestrian crossings, while inferential statistics aim to identify pedestrian crossings’ characteristics and pedestrians’ characteristics which affect their habits and perceptions. Statistical analysis concludes with the development of a binary logit model which aims to quantify the impact of specific parameters on pedestrians’ opinion about the sufficiency of green light duration.

ACS Style

Socrates Basbas; Andreas Nikiforiadis; Evaggelia Sarafianou; Nikolaos Kolonas. Behavior and Perceptions of University Students at Pedestrian Crossings. Advances in Intelligent Systems and Computing 2018, 280 -287.

AMA Style

Socrates Basbas, Andreas Nikiforiadis, Evaggelia Sarafianou, Nikolaos Kolonas. Behavior and Perceptions of University Students at Pedestrian Crossings. Advances in Intelligent Systems and Computing. 2018; ():280-287.

Chicago/Turabian Style

Socrates Basbas; Andreas Nikiforiadis; Evaggelia Sarafianou; Nikolaos Kolonas. 2018. "Behavior and Perceptions of University Students at Pedestrian Crossings." Advances in Intelligent Systems and Computing , no. : 280-287.