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Dr. Nurten Akgün Tanbay
Bursa Technical University

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0 Road Safety
0 Sustainable
0 urban mobility
0 Statistical Application
0 Transporatation Engineering

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Journal article
Published: 08 December 2020 in Accident Analysis & Prevention
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The level of safety for cyclists at roundabouts may vary according to national differences not only in the design itself but also sociodemographic, cyclist and driver behaviour as well as environmental factors. This paper investigates the national influence on cyclist casualty severity at roundabouts by comparing the United Kingdom (using Northumbria as a representative sample) and Belgium. The data included speed limits, socio-demographic characteristics, environmental conditions and driver/cyclist behaviour-related contributory factors. First, a logistic regression analysis for the UK data, including 864 cyclist casualties, was carried out. Increasing the speed limit by ten units (for example 30mph to 40mph) increased the probability of a cyclist being killed or seriously injured by 10%. A cyclist casualty was more than three times more likely to be killed or seriously injured (the odds ratio is 3.02) where sudden braking was recorded as a contributory factor. Second, a separate logistic regression analysis for Belgium was conducted. Cyclists ignoring the priority at roundabouts increased the probability of a fatal or seriously injured collisions (the odds ratio is 2.71). Comparing the individual analysis for both countries, the influence of cyclist age was consistent. Each one-year increase in cyclist age increases chance of being killed or seriously injured as opposed to not being killed or seriously injured by 2 % (odds ratio is 1.02) in both UK and Belgium. A final comparative analysis was applied considering proxy variables for both countries. Three-way chi-square tests of independence showed that all non-behavioural variables (i.e. sociodemographic characteristics, speed limit, and environmental conditions) were found to be statistically different between UK and Belgium for both slight and killed and seriously injured casualties. This suggests that driver/cyclist interaction and behaviour in the two countries is generally similar whilst speed limits, the sociodemographic characteristics of cyclists and environmental conditions are specific for each country. The third part of the logistic regression analysis suggested that the country residual was highly statistically significant. This indicates that there are some statistically significant differences with respect to the characteristics of the two regional datasets used in the analysis.

ACS Style

Nurten Akgün; Stijn Daniels; Margaret Carol Bell; Nina Nuyttens; Neil Thorpe; Dilum Dissanayake. Exploring regional differences in cyclist safety at roundabouts: A comparative study between the UK (based on Northumbria data) and Belgium. Accident Analysis & Prevention 2020, 150, 105902 .

AMA Style

Nurten Akgün, Stijn Daniels, Margaret Carol Bell, Nina Nuyttens, Neil Thorpe, Dilum Dissanayake. Exploring regional differences in cyclist safety at roundabouts: A comparative study between the UK (based on Northumbria data) and Belgium. Accident Analysis & Prevention. 2020; 150 ():105902.

Chicago/Turabian Style

Nurten Akgün; Stijn Daniels; Margaret Carol Bell; Nina Nuyttens; Neil Thorpe; Dilum Dissanayake. 2020. "Exploring regional differences in cyclist safety at roundabouts: A comparative study between the UK (based on Northumbria data) and Belgium." Accident Analysis & Prevention 150, no. : 105902.

Journal article
Published: 31 October 2020 in Sustainability
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The limited availability of public transportation in Saudi Arabia leads to an increased demand for private vehicles. An increase in using private cars does not meet the global sustainability goals, e.g., reducing energy consumption and improving the air quality. Road users should be encouraged to use sustainable mobility modes, particularly public transportation, equally accessible to both men and women However, women’s mobility has been somewhat limited and challenged in spatio-temporal terms, and partly due to socio-cultural barriers. This study attempts to understand the gender experience of a sample of public transport users and consider their aspirations and needs into daily mobility. A survey campaign (structured interviews and online questionnaires) was launched in the Dammam Metropolitan Region (DMR), taking four different types of respondents into account. The results suggest a predominant preference for taxis for shopping and leisure activities due to a poor public transport service, pivotally characterized by limited operational routes, hours, and infrastructure. This study ponders upon the adequacy of the supporting infrastructures and interior design of the public buses to women’s needs and compare them with global best practices. The results suggest that, due to the absence of a gender-responsive design and infrastructure, women are forced to use taxis, although privacy and a sense of insecurity often become concerns when traveling alone or with children. The study results allow future research to be expanded, considering women’s mobility patterns, needs, and embedded barriers by comparing the results with current transport policies, plans, and practices.

ACS Style

Muhammad Al-Rashid; Kh Nahiduzzaman; Sohel Ahmed; Tiziana Campisi; Nurten Akgün. Gender-Responsive Public Transportation in the Dammam Metropolitan Region, Saudi Arabia. Sustainability 2020, 12, 9068 .

AMA Style

Muhammad Al-Rashid, Kh Nahiduzzaman, Sohel Ahmed, Tiziana Campisi, Nurten Akgün. Gender-Responsive Public Transportation in the Dammam Metropolitan Region, Saudi Arabia. Sustainability. 2020; 12 (21):9068.

Chicago/Turabian Style

Muhammad Al-Rashid; Kh Nahiduzzaman; Sohel Ahmed; Tiziana Campisi; Nurten Akgün. 2020. "Gender-Responsive Public Transportation in the Dammam Metropolitan Region, Saudi Arabia." Sustainability 12, no. 21: 9068.

Journal article
Published: 23 October 2020 in Sustainability
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The COVID-19 pandemic has resulted in unprecedented measures changing travel habits in many countries. Many users have started to prefer traveling by private cars, which is against the sustainability policies of the European cities. The necessity of gaining a deeper understanding of road users’ travel habit changes, their feelings on public transport use, and their perceptions of using sustainable urban mobility modes has emerged for future transport planning. Considering these facts, the study in this paper aimed to investigate the influence of the COVID-19 pandemic on road users’ perceptions, needs, and use of sustainable travel modes (i.e., public transport, walking, and cycling). An online survey was carried out during the period from March to May 2020 in the case study area, Sicily of Southern Italy. Regarding the population of the case study, the survey was representative, with 431 individuals. The survey included variables, namely gender, age, city of residence, private car ownership, walking and cycling frequency before and during the pandemic, public transport use frequency for leisure activities before and during the pandemic, need for remote working, and the stress and anxiety perception of using public transport during the pandemic. The analysis started with descriptive statistics and it was followed by correlation analysis in order to explore the characteristics of the dataset and relationship between variables. It was found that these were not statistically significantly correlated at a 95% confidence level. An ordinal regression model was applied for determining the predictions. The results suggested that women were less likely to walk during the pandemic than men. Participants were more likely to resume remote work even after the second phase in order to reduce their daily travel needs and keep their isolation. Participants have expressed a positive opinion on the use of micromobility during pandemic situations. These results can be considered as a basis for sustainable urban planning and a guide for decision-makers who aim to encourage the use of public transport, walking, cycling, and micromobility.

ACS Style

Tiziana Campisi; Socrates Basbas; Anastasios Skoufas; Nurten Akgün; Dario Ticali; Giovanni Tesoriere. The Impact of COVID-19 Pandemic on the Resilience of Sustainable Mobility in Sicily. Sustainability 2020, 12, 8829 .

AMA Style

Tiziana Campisi, Socrates Basbas, Anastasios Skoufas, Nurten Akgün, Dario Ticali, Giovanni Tesoriere. The Impact of COVID-19 Pandemic on the Resilience of Sustainable Mobility in Sicily. Sustainability. 2020; 12 (21):8829.

Chicago/Turabian Style

Tiziana Campisi; Socrates Basbas; Anastasios Skoufas; Nurten Akgün; Dario Ticali; Giovanni Tesoriere. 2020. "The Impact of COVID-19 Pandemic on the Resilience of Sustainable Mobility in Sicily." Sustainability 12, no. 21: 8829.

Conference paper
Published: 02 October 2020 in Transactions on Petri Nets and Other Models of Concurrency XV
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Sustainable transport modes, particularly micro-mobility, allows to reduce possible congestion phenomena in urban traffic. In this study, the aim is to make a contribution to increase micro-mobility use by exploring the impacts of socio-demographic, vehicle ownership (car, bicycle and micro mobility), level of infrastructure service and road users’ perception in safety, comfort and chaotic environment on renting micro-mobility in a shared urban street. The study area is a historical center called Via Maqueda in Palermo, Italy, which is rich in commercial and cultural activities. A survey with 200 individuals is carried out for the data collection regarding the aim of the study. The analysis starts with a descriptive statistics in order to illustrate the characteristics of the predictor variables. This is followed by relaxing p-value method for selecting the statistically significant predictor variables with 90% confidence level. These selected predictor variables are applied into an ordinal logit model. The results suggest that one unit increase in car ownership decrease the willingness of renting a micro mobility by log odds of −0.74, given all the other predictors are held constant. One unit increase in age group decrease the willingness of renting micro-mobility in shared urban streets. The outcomes will guide decision makers to understand who the average road users are and what are their needs in terms of further developments of the micro-mobility system in urban shared streets. The originality of this paper consists the perceptions of road users, such as safety and comfort, on micro-mobility that can encourage to use this sustainable urban travel mode in restricted traffic areas.

ACS Style

Tiziana Campisi; Nurten Akgün; Giovanni Tesoriere. An Ordered Logit Model for Predicting the Willingness of Renting Micro Mobility in Urban Shared Streets: A Case Study in Palermo, Italy. Transactions on Petri Nets and Other Models of Concurrency XV 2020, 12250, 796 -808.

AMA Style

Tiziana Campisi, Nurten Akgün, Giovanni Tesoriere. An Ordered Logit Model for Predicting the Willingness of Renting Micro Mobility in Urban Shared Streets: A Case Study in Palermo, Italy. Transactions on Petri Nets and Other Models of Concurrency XV. 2020; 12250 ():796-808.

Chicago/Turabian Style

Tiziana Campisi; Nurten Akgün; Giovanni Tesoriere. 2020. "An Ordered Logit Model for Predicting the Willingness of Renting Micro Mobility in Urban Shared Streets: A Case Study in Palermo, Italy." Transactions on Petri Nets and Other Models of Concurrency XV 12250, no. : 796-808.

Journal article
Published: 07 July 2020 in Sustainability
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The Sustainable Urban Mobility Planning (SUMP) process deals with barriers to improve accessibility and quality of life in urban mobility. Public opinion is highly essential for this process because it presents the real needs of road users. This paper illustrates the influence of public opinion on using Private Mobility Vehicle (PMV) in urban. A survey was carried out with 400 participants in Palermo, Italy. The results suggested that there was heterogeneity in gender and age groups in subcategories which represented people who use, do not use, and completely reject, using PMVs in urban. In addition, it was explored that there was a statistically significant relationship at 95% confidence level between sociodemographic characteristics (gender and age groups) and public opinion on PMV using. Employment status was found as an important parameter in transport planning. It was also showed that there was an inconsistency between local and national results. The results suggested that sociodemographic characteristics and public opinion should be investigated in further studies. In addition, a participatory planning process should be carried out to monitor for reliable evaluation in urban transport planning.

ACS Style

Tiziana Campisi; Nurten Akgün; Dario Ticali; Giovanni Tesoriere. Exploring Public Opinion on Personal Mobility Vehicle Use: A Case Study in Palermo, Italy. Sustainability 2020, 12, 5460 .

AMA Style

Tiziana Campisi, Nurten Akgün, Dario Ticali, Giovanni Tesoriere. Exploring Public Opinion on Personal Mobility Vehicle Use: A Case Study in Palermo, Italy. Sustainability. 2020; 12 (13):5460.

Chicago/Turabian Style

Tiziana Campisi; Nurten Akgün; Dario Ticali; Giovanni Tesoriere. 2020. "Exploring Public Opinion on Personal Mobility Vehicle Use: A Case Study in Palermo, Italy." Sustainability 12, no. 13: 5460.