Outputs (64)

Effective Trigger Speeds for Vehicle Activated Signs on 20 mph Roads in Rural Areas (2024)
Journal Article
Olowosegun, A., Fountas, G., & Davis, A. (2024). Effective Trigger Speeds for Vehicle Activated Signs on 20 mph Roads in Rural Areas. Safety, 10(1), Article 25. https://doi.org/10.3390/safety10010025

This paper aims to offer novel empirical evidence as to the identification of the most effective Trigger Speeds (TS) for Vehicle-Activated Signs (VAS) in rural areas. To achieve this, an experimental study was carried out in the area of Scottish Bord... Read More about Effective Trigger Speeds for Vehicle Activated Signs on 20 mph Roads in Rural Areas.

Analysis of traffic conflicts with right-turning vehicles at unsignalized intersections in suburban areas (2023)
Journal Article
Sheykhfard, A., Haghighi, F., Bakhtiari, S., Moridpour, S., Xie, K., & Fountas, G. (in press). Analysis of traffic conflicts with right-turning vehicles at unsignalized intersections in suburban areas. International Journal of Transportation Science and T

Right-turn collisions at intersections are one of the most dominant crash types in suburban areas, especially at unsignalized intersections. There is, however, a lack of comprehensive research on the speed patterns of vehicles during right-turn manoe... Read More about Analysis of traffic conflicts with right-turning vehicles at unsignalized intersections in suburban areas.

An empirical analysis of the factors influencing Scottish residents’ compliance with COVID-19 travel restrictions (2023)
Journal Article
Semple, T., Fonzone, A., Fountas, G., & Downey, L. (2023). An empirical analysis of the factors influencing Scottish residents’ compliance with COVID-19 travel restrictions. Transportation Research Part A: Policy and Practice, 178, Article 103842. https

This study uses survey data to investigate the factors affecting compliance with the Scottish Government’s COVID-19 travel restrictions. The survey contained self-reported data (n=819) regarding various aspects of Scottish residents’ COVID-19 travel... Read More about An empirical analysis of the factors influencing Scottish residents’ compliance with COVID-19 travel restrictions.

Automated bus services – To whom are they appealing in their early stages? (2023)
Journal Article
Fonzone, A., Fountas, G., & Downey, L. (2024). Automated bus services – To whom are they appealing in their early stages?. Travel Behaviour and Society, 34, Article 100647. https://doi.org/10.1016/j.tbs.2023.100647

Amidst a period of operational and financial challenges for the bus industry, the advent of Automated Buses (ABs) could be an opportunity to boost the attractiveness of public transport. This paper examines the determinants of changes in bus use afte... Read More about Automated bus services – To whom are they appealing in their early stages?.

Assessing the Impact of 20 mph Speed Limits on Vehicle Speeds in Rural Areas: The Case of the Scottish Borders (2023)
Journal Article
Olowosegun, A., Fountas, G., & Davis, A. (in press). Assessing the Impact of 20 mph Speed Limits on Vehicle Speeds in Rural Areas: The Case of the Scottish Borders. Safety, 9(3), Article 66. https://doi.org/10.3390/safety9030066

This paper aims at delivering new empirical evidence as to the effectiveness of 20 mph speed limits in rural areas. For this purpose, speed and traffic data were drawn from the area of the Scottish Borders, UK, where the local Council led the rollout... Read More about Assessing the Impact of 20 mph Speed Limits on Vehicle Speeds in Rural Areas: The Case of the Scottish Borders.

Evasive actions to prevent pedestrian collisions in varying space/time contexts in diverse urban and non-urban areas (2023)
Journal Article
Sheykhfard, A., Haghighi, F., Das, S., & Fountas, G. (2023). Evasive actions to prevent pedestrian collisions in varying space/time contexts in diverse urban and non-urban areas. Accident analysis and prevention, 192, Article 107270. https://doi.org/10.10

This study aims to identify driver-safe evasive actions associated with pedestrian crash risk in diverse urban and non-urban areas. The research focuses on the integration of quantitative methods and granular naturalistic data to examine the impacts... Read More about Evasive actions to prevent pedestrian collisions in varying space/time contexts in diverse urban and non-urban areas.

An In-Depth Econometric Analysis of Pavement Performance and Service Life by Pavement Rehabilitation Treatment Type and Delivery Method (2023)
Journal Article
David, D., Ahmed, S. S., Sarwar, M. T., Fountas, G., & Anastasopoulos, P. (2023). An In-Depth Econometric Analysis of Pavement Performance and Service Life by Pavement Rehabilitation Treatment Type and Delivery Method. Journal of Infrastructure Systems, 2

This paper delivers a detailed statistical assessment of pavement rehabilitation treatments by delivery methods via studying their performance in terms of pavement indicators (international roughness index, rutting depth, and pavement condition ratin... Read More about An In-Depth Econometric Analysis of Pavement Performance and Service Life by Pavement Rehabilitation Treatment Type and Delivery Method.

On the attitudes toward automation in determining the intention to use automated buses in Scotland (2023)
Journal Article
Nanethan Rahim, A., Fonzone, A., Fountas, G., & Downey, L. (2023). On the attitudes toward automation in determining the intention to use automated buses in Scotland. Transportation research record, 2677(9), 384-396. https://doi.org/10.1177/03611981231159

Vehicle automation technology is expected to bring significant benefits to transit systems. For public transportation to continue being a viable mobility alternative to private modes, automated technologies are anticipated to be actively utilized in... Read More about On the attitudes toward automation in determining the intention to use automated buses in Scotland.

Who is More Likely (Not) to Make Home-Based Work Trips during the COVID-19 Pandemic? The Case of Scotland (2022)
Journal Article
Semple, T., Fountas, G., & Fonzone, A. (2023). Who is More Likely (Not) to Make Home-Based Work Trips during the COVID-19 Pandemic? The Case of Scotland. Transportation research record, 2677(4), 904-916. https://doi.org/10.1177/03611981221119192

In this study, we use survey data (n=6,000) to investigate the work trip patterns of Scottish residents at various points of the COVID-19 pandemic. We focus specifically on the reported patterns of weekly work trips made during the government-enforce... Read More about Who is More Likely (Not) to Make Home-Based Work Trips during the COVID-19 Pandemic? The Case of Scotland.

The Impact Of COVID-19 On Future Public Transport Use In Scotland (2022)
Journal Article
Downey, L., Fonzone, A., Fountas, G., & Semple, T. (2022). The Impact Of COVID-19 On Future Public Transport Use In Scotland. Transportation Research Part A: Policy and Practice, 163, 338-352. https://doi.org/10.1016/j.tra.2022.06.005

This paper examines the determinants of changes in future public transport use in Scotland after the COVID-19 pandemic. An online questionnaire was distributed to 994 Scottish residents in order to identify travel habits, attitudes and preferences du... Read More about The Impact Of COVID-19 On Future Public Transport Use In Scotland.

Assessing School Travel Safety in Scotland: An Empirical Analysis of Injury Severities for Accidents in the School Commute (2022)
Journal Article
Fountas, G., Olowosegun, A., & Basbas, S. (2022). Assessing School Travel Safety in Scotland: An Empirical Analysis of Injury Severities for Accidents in the School Commute. Safety, 8(2), Article 29. https://doi.org/10.3390/safety8020029

School travel has been a significant source of safety concerns for children, parents, and public authorities. It will continue to be a source of concerns as long as severe accidents continue to emerge during pupils’ commute to school. This study prov... Read More about Assessing School Travel Safety in Scotland: An Empirical Analysis of Injury Severities for Accidents in the School Commute.

DATASET: The impact of Covid-19 on travel behaviour, transport, lifestyles and residential location choices in Scotland (2022)
Data
Downey, L., Fonzone, A., & Fountas, G. (2022). DATASET: The impact of Covid-19 on travel behaviour, transport, lifestyles and residential location choices in Scotland. [Data]. https://doi.org/10.17869/enu.2022.2853752

In response to the COVID-19 pandemic, Edinburgh Napier University’s Transport Research Institute has been undertaking a study, funded by the Scottish Funding Council (SFC), into its impact on transport and travel in Scotland. As part of this research... Read More about DATASET: The impact of Covid-19 on travel behaviour, transport, lifestyles and residential location choices in Scotland.

Analysis of Pedestrian Accident Injury-Severities at Road Junctions and Crossings using an Advanced Random Parameter Modelling Framework: The Case of Scotland (2022)
Journal Article
Olowosegun, A., Babajide, N., Akintola, A., Fountas, G., & Fonzone, A. (2022). Analysis of Pedestrian Accident Injury-Severities at Road Junctions and Crossings using an Advanced Random Parameter Modelling Framework: The Case of Scotland. Accident analysi

This paper investigates the determinants of injury severities in pedestrian-motor vehicle accidents at signalised and unsignalised junctions, and at physically-controlled and human-controlled crossings in Scotland. The accident data were drawn from t... Read More about Analysis of Pedestrian Accident Injury-Severities at Road Junctions and Crossings using an Advanced Random Parameter Modelling Framework: The Case of Scotland.

Demographic and Behavioural Factors Affecting Public Support for Pedestrianisation in City Centres: The Case of Edinburgh, UK (2022)
Journal Article
Semple, T., & Fountas, G. (2023). Demographic and Behavioural Factors Affecting Public Support for Pedestrianisation in City Centres: The Case of Edinburgh, UK. International Journal of Transportation Science and Technology, 12(1), 103-118. https://doi.or

This paper provides an integrated analytical framework to investigate the demographic and behavioural factors that significantly influence public support for pedestrianisation. Pedestrianisation is often introduced by local authorities with the inten... Read More about Demographic and Behavioural Factors Affecting Public Support for Pedestrianisation in City Centres: The Case of Edinburgh, UK.

Survey data on public perceptions towards flying cars and flying taxi services (2022)
Journal Article
Eker, U., Fountas, G., Ahmed, S. S., & Anastasopoulos, P. C. (2022). Survey data on public perceptions towards flying cars and flying taxi services. Data in Brief, 41, Article 107981. https://doi.org/10.1016/j.dib.2022.107981

An online survey was conducted to evaluate public perceptions towards an emerging transportation technology, namely the flying car, which is expected to join the existing traffic fleet within the following decades. Responses from 692 survey participa... Read More about Survey data on public perceptions towards flying cars and flying taxi services.

The impact of public-private partnerships for roadway projects on traffic safety: An exploratory empirical analysis of crash frequencies (2021)
Journal Article
Sonduru Pantangi, S., Fountas, G., Tawfiq Sarwar, M., Bhargava, A., Mohan, S. B., Savolainen, P., & Ch. Anastasopoulos, P. (2022). The impact of public-private partnerships for roadway projects on traffic safety: An exploratory empirical analysis of crash

Since the mid-2000s, Public-Private Partnerships (PPP) have been established in transportation infrastructure projects as an effective alternative to the traditional procurement process, such as design-bid-build where the design and construction are... Read More about The impact of public-private partnerships for roadway projects on traffic safety: An exploratory empirical analysis of crash frequencies.

Solar-Powered Active Road Studs and Highway Infrastructure: Effect on Vehicle Speeds (2021)
Journal Article
Llewellyn, R., Cowie, J., & Fountas, G. (2021). Solar-Powered Active Road Studs and Highway Infrastructure: Effect on Vehicle Speeds. Energies, 14(21), 7209. https://doi.org/10.3390/en14217209

Vehicle speeds have a direct relationship with the severity of road crashes and may influence their probability of occurrence. Solar-powered active road studs have been shown to have a positive effect on driver confidence, but their impact on vehicle... Read More about Solar-Powered Active Road Studs and Highway Infrastructure: Effect on Vehicle Speeds.

Trips for Outdoor Exercise at Different Stages of the COVID-19 Pandemic in Scotland   (2021)
Journal Article
Semple, T., Fountas, G., & Fonzone, A. (2021). Trips for Outdoor Exercise at Different Stages of the COVID-19 Pandemic in Scotland  . Journal of transport & health, 23, Article 101280. https://doi.org/10.1016/j.jth.2021.101280

Introduction The COVID-19 pandemic has had exceptional effects on travel behaviour in the UK. This paper focuses specifically on the outdoor exercise trips of Scottish residents at several distinct points of the COVID-19 pandemic. Given the negative... Read More about Trips for Outdoor Exercise at Different Stages of the COVID-19 Pandemic in Scotland  .

Access to Ubiquitous Real-Time Information by Bus Passengers in Urban Contexts (2021)
Presentation / Conference Contribution
Islam, M. F., Fonzone, A., & Fountas, G. (2021). Access to Ubiquitous Real-Time Information by Bus Passengers in Urban Contexts. In 2021 7th International Conference on Models and Technologies for Intelligent Transportation Systems (MT-ITS). https://doi.

Due to higher smartphone uptake and Internet penetration rate, Ubiquitous Real-time Passenger Information (URTPI) has become available to and required by larger segments of the public transit passenger population. URTPI can influence perceptions rega... Read More about Access to Ubiquitous Real-Time Information by Bus Passengers in Urban Contexts.

Addressing Unobserved Heterogeneity in the Analysis of Bicycle Crash Injuries in Scotland: A Correlated Random Parameters Ordered Probit Approach with Heterogeneity in Means (2021)
Journal Article
Fountas, G., Fonzone, A., Olowosegun, A., & McTigue, C. (2021). Addressing Unobserved Heterogeneity in the Analysis of Bicycle Crash Injuries in Scotland: A Correlated Random Parameters Ordered Probit Approach with Heterogeneity in Means. Analytic Methods

This paper investigates the determinants of injury severities in single-bicycle and bicycle-motor vehicle crashes by estimating correlated random parameter ordered probit models with heterogeneity in the means. This modeling approach extends the fron... Read More about Addressing Unobserved Heterogeneity in the Analysis of Bicycle Crash Injuries in Scotland: A Correlated Random Parameters Ordered Probit Approach with Heterogeneity in Means.

Extending the Heston model to forecast motor vehicle collision rates (2021)
Journal Article
Shannon, D., & Fountas, G. (2021). Extending the Heston model to forecast motor vehicle collision rates. Accident analysis and prevention, 159, Article 106250. https://doi.org/10.1016/j.aap.2021.106250

We present an alternative approach to the forecasting of motor vehicle collision rates. We adopt an oft-used tool in mathematical finance, the Heston Stochastic Volatility model, to forecast the short-term and long-term evolution of motor vehicle col... Read More about Extending the Heston model to forecast motor vehicle collision rates.

Are We Willing to Relocate with the Future Introduction of Flying Cars? An Exploratory Empirical Analysis of Public Perceptions in the United States (2021)
Journal Article
Ahmed, S. S., Fountas, G., Eker, U., & Anastasopoulos, P. C. (2022). Are We Willing to Relocate with the Future Introduction of Flying Cars? An Exploratory Empirical Analysis of Public Perceptions in the United States. Transportmetrica A: Transport Scienc

Flying cars, a new transportation mode capable of operating on both land and air, are expected to be introduced in the existing traffic fleet over the next decade or so. Due to their potential in offering flexible mobility patterns, as well as shorte... Read More about Are We Willing to Relocate with the Future Introduction of Flying Cars? An Exploratory Empirical Analysis of Public Perceptions in the United States.

Impact of COVID-19 on travel behaviour, transport, lifestyles and residential location choices in Scotland (2021)
Report
Downey, L., Fonzone, A., Fountas, G., & Semple, T. Impact of COVID-19 on travel behaviour, transport, lifestyles and residential location choices in Scotland. Scottish Funding Council

COVID-19 was declared a pandemic by the World Health Organisation (WHO) on 21st March 2020 and on 24th March 2020, the UK and Scottish Governments imposed a ‘lockdown’, restricting everyday life activities to only the most essential. These Government... Read More about Impact of COVID-19 on travel behaviour, transport, lifestyles and residential location choices in Scotland.

Opportunities and Challenges in Statistical Analysis of Transportation Data: Where We Are and Where We Are Going (2020)
Report
Fountas, G., Anastasopoulos, P. C., & Boyle, L. (2020). Opportunities and Challenges in Statistical Analysis of Transportation Data: Where We Are and Where We Are Going. Transportation Research Board

Standing Committee on Statistical Methods (ABJ80). Over the last three decades, the committee has significantly broadened its focus across nearly all aspects of transportation. However, the “starting ground” of the committee’s activities has remained... Read More about Opportunities and Challenges in Statistical Analysis of Transportation Data: Where We Are and Where We Are Going.

Do High Visibility Crosswalks Improve Pedestrian Safety? A Correlated Grouped Random Parameters Approach Using Naturalistic Driving Study Data (2020)
Journal Article
Sonduru Pantangi, S., Shahriar Ahmed, S., Fountas, G., Majka, K., & Ch. Anastasopoulos, P. (2021). Do High Visibility Crosswalks Improve Pedestrian Safety? A Correlated Grouped Random Parameters Approach Using Naturalistic Driving Study Data. Analytic Met

In this study, the effectiveness of High-Visibility Crosswalks (HVCs) in improving pedestrian safety at urban settings is assessed using SHRP2 (Second Strategic Highway Research Program) Naturalistic Driving Study (NDS) data. Various HVCs located at... Read More about Do High Visibility Crosswalks Improve Pedestrian Safety? A Correlated Grouped Random Parameters Approach Using Naturalistic Driving Study Data.

An exploratory empirical analysis of willingness to hire and pay for flying taxis and shared flying car services (2020)
Journal Article
Shahriar Ahmed, S., Fountas, G., Eker, U., Still, S. E., & Anastasopoulos, P. C. (2021). An exploratory empirical analysis of willingness to hire and pay for flying taxis and shared flying car services. Journal of Air Transport Management, 90, Article 101

A new transportation mode that can simultaneously operate on land and in the air, namely the flying cars, is anticipated to penetrate the automobile fleet between 2020 and 2025. Due to their flexible mobility patterns and automated operational chara... Read More about An exploratory empirical analysis of willingness to hire and pay for flying taxis and shared flying car services.

A Novel Method for Estimating Emissions Reductions Caused by the Restriction of Mobility: The Case of the COVID-19 Pandemic (2020)
Journal Article
Pomponi, F., Li, M., Sun, Y., Malik, A., Lenzen, M., Fountas, G., D'Amico, B., Akizu-Gardoki, O., & Luque Anguita, M. (2021). A Novel Method for Estimating Emissions Reductions Caused by the Restriction of Mobility: The Case of the COVID-19 Pandemic. Envi

The COVID-19 pandemic is the single largest event in contemporary history for global mobility restriction, with the majority of the world population experiencing various forms of ‘lockdown’. This phenomenon incurred increased teleworking and time spe... Read More about A Novel Method for Estimating Emissions Reductions Caused by the Restriction of Mobility: The Case of the COVID-19 Pandemic.

The influence of traffic, geometric and context variables on urban crash types: a grouped random parameter multinomial logit approach (2020)
Journal Article
Intini, P., Berloco, N., Fonzone, A., Fountas, G., & Ranieri, V. (2020). The influence of traffic, geometric and context variables on urban crash types: a grouped random parameter multinomial logit approach. Analytic Methods in Accident Research, 28, Arti

Numerous road safety studies have been dedicated to the estimation of crash frequency and injury severity models. However, previous research has shown that different factors may influence the occurrence of crashes of different types. In this study, a... Read More about The influence of traffic, geometric and context variables on urban crash types: a grouped random parameter multinomial logit approach.

Analysis of Safety Benefits and Security Concerns from the Use of Autonomous Vehicles: A Grouped Random Parameters Bivariate Probit Approach with Heterogeneity in Means (2020)
Journal Article
Ahmed, S. S., Pantangi, S. S., Eker, U., Fountas, G., Still, S. E., & Anastasopoulos, P. C. (2020). Analysis of Safety Benefits and Security Concerns from the Use of Autonomous Vehicles: A Grouped Random Parameters Bivariate Probit Approach with Heterogen

This paper investigates public perceptions towards potential safety benefits, and safety- and security-related concerns from the future use of autonomous vehicles by utilizing data collected from an online survey. The survey includes responses from... Read More about Analysis of Safety Benefits and Security Concerns from the Use of Autonomous Vehicles: A Grouped Random Parameters Bivariate Probit Approach with Heterogeneity in Means.

The Flying Car – Challenges and Strategies towards Future Adoption (2020)
Journal Article
Shahriar Ahmed, S., Hulme, K., Fountas, G., Eker, U., Benedyk, I., Still, S., & Anastasopoulos, P. C. (2020). The Flying Car – Challenges and Strategies towards Future Adoption. Frontiers in Built Environment, 6, https://doi.org/10.3389/fbuil.2020.00106

In recent years, our surface transportation infrastructure is suffering from overuse, extreme traffic congestion, and roadway disrepair. Instead of following the traditional infrastructure expansion policy, current transportation research focuses on... Read More about The Flying Car – Challenges and Strategies towards Future Adoption.

How Do People Move Around? National Data on Transport Modal Shares for 131 Countries (2020)
Journal Article
Fountas, G., Sun, Y., Akizu-Gardoki, O., & Pomponi, F. (2020). How Do People Move Around? National Data on Transport Modal Shares for 131 Countries. World, 1(1), 34-43. https://doi.org/10.3390/world1010003

The COVID-19 pandemic has brought global mobility into the spotlight, with well over 100 countries having instituted either a full or partial lockdown by April 2020. Reduced mobility, whilst causing social and economic impacts, can also be beneficial... Read More about How Do People Move Around? National Data on Transport Modal Shares for 131 Countries.

An exploratory empirical analysis of willingness to pay for and use flying cars (2020)
Journal Article
Eker, U., Fountas, G., & Anastasopoulos, P. C. (2020). An exploratory empirical analysis of willingness to pay for and use flying cars. Aerospace science and technology, 104, https://doi.org/10.1016/j.ast.2020.105993

From the early years of aviation, flying cars have constituted an appealing topic for science-fiction scenarios. Currently, recent technological developments demonstrate that flying cars will be introduced in the traffic fleet over the next few year... Read More about An exploratory empirical analysis of willingness to pay for and use flying cars.

Phase 2 - High Visibility Crosswalk Pedestrian Study:Concept to Countermeasure – Research to Deployment Using the SHRP2 Safety Data (2020)
Report
Majka, K., Pierowicz, J., Blatt, A., Anastasopoulos, P. C., Sonduru Pantangi, S., Eker, U., …Shahriar Ahmed, S. (2020). Phase 2 - High Visibility Crosswalk Pedestrian Study:Concept to Countermeasure – Research to Deployment Using the SHRP2 Safety Data

This study was focused on evaluating the effectiveness that high-visibility crosswalk (HVC) markings have on improving pedestrian safety. Naturalistic driving data was used to analyze vehicle kinematics and driver behavior in relation to the approach... Read More about Phase 2 - High Visibility Crosswalk Pedestrian Study:Concept to Countermeasure – Research to Deployment Using the SHRP2 Safety Data.

The joint effect of weather and lighting conditions on injury severities of single-vehicle accidents (2020)
Journal Article
Fountas, G., Fonzone, A., Gharavi, N., & Rye, T. (2020). The joint effect of weather and lighting conditions on injury severities of single-vehicle accidents. Analytic Methods in Accident Research, 27, Article 100124. https://doi.org/10.1016/j.amar.2020.1

This study seeks to identify and analyze variations in the effect of contributing factors on injury severities of single-vehicle accidents across various lighting and weather conditions. To that end, injury-severity data from single-vehicle, injury a... Read More about The joint effect of weather and lighting conditions on injury severities of single-vehicle accidents.

Do High Visibility Enforcement Programs Affect Aggressive Driving Behavior? An Empirical Analysis Using Naturalistic Driving Study Data (2020)
Journal Article
Pantangi, S. S., Fountas, G., Anastasopoulos, P. C., Pierowicz, J., Majka, K., & Blatt, A. (2020). Do High Visibility Enforcement Programs Affect Aggressive Driving Behavior? An Empirical Analysis Using Naturalistic Driving Study Data. Accident analysis a

This paper investigates the effect of High Visibility Enforcement (HVE) programs on different types of aggressive driving behavior, namely, speeding, tailgating, unsafe lane changes and ‘other’ aggressive driving behavior types (occurrence of not-yie... Read More about Do High Visibility Enforcement Programs Affect Aggressive Driving Behavior? An Empirical Analysis Using Naturalistic Driving Study Data.

Simultaneous Modeling of Travel Time and Distance: A Bivariate Hazard-Based Approach with Correlated Grouped Random Parameters (2020)
Presentation / Conference Contribution
Ahmed, S. S., Fountas, G., & Anastasopoulos, P. (2020, January). Simultaneous Modeling of Travel Time and Distance: A Bivariate Hazard-Based Approach with Correlated Grouped Random Parameters. Presented at Transportation Research Board (TRB) Annual Meetin

Identifying the Early Adopters of Flying Cars: Who Is Willing to Pay for and Use Them? (2020)
Presentation / Conference Contribution
Eker, U., Fountas, G., & Anastasopoulos, P. (2020, January). Identifying the Early Adopters of Flying Cars: Who Is Willing to Pay for and Use Them?. Poster presented at Transportation Research Board (TRB) Annual Meeting, Washington, D.C., US

Factors affecting perceived and observed aggressive driving behavior: An empirical analysis of driver fatigue, and distracted driving (2019)
Report
Fountas, G., Pantangi, S. S., Ahmed, S. S., Eker, U., & Anastasopoulos, P. C. (2019). Factors affecting perceived and observed aggressive driving behavior: An empirical analysis of driver fatigue, and distracted driving. Transportation Informatics Tier I

Previous research has shown that the determinants of perceived and observed aggressive driving behavior may differ. However, the consideration of major sources of aggressive patterns may introduce additional variations in the effect of such determin... Read More about Factors affecting perceived and observed aggressive driving behavior: An empirical analysis of driver fatigue, and distracted driving.

Effect of High Visibility Enforcement Programs on Aggressive Driving Behavior: An Empirical Analysis Using SHRP2 Naturalistic Driving Study (NDS) Data (2019)
Presentation / Conference Contribution
Sonduru Pantangi, S., Fountas, G., Anastasopoulos, P., Pierowicz, J., Majka, K., & Blatt, A. (2019). Effect of High Visibility Enforcement Programs on Aggressive Driving Behavior: An Empirical Analysis Using SHRP2 Naturalistic Driving Study (NDS) Data.

This paper investigates the effect of High Visibility Enforcement on different types of aggressive driving behavior: speeding, tailgating, unsafe lane changes and ‘other’ aggressive driving behavior types (occurrence of not-yielding right-of-way and... Read More about Effect of High Visibility Enforcement Programs on Aggressive Driving Behavior: An Empirical Analysis Using SHRP2 Naturalistic Driving Study (NDS) Data.

An Exploratory Investigation of Public Perceptions Towards Key Benefits and Concerns from the Future Use of Flying Cars (2019)
Journal Article
Eker, U., Fountas, G., Anastasopoulos, P. C., & Still, S. E. (2020). An Exploratory Investigation of Public Perceptions Towards Key Benefits and Concerns from the Future Use of Flying Cars. Travel Behaviour and Society, 19, 54-66. https://doi.org/10.1016/

The imminent introduction of flying cars in the traffic fleet is anticipated to modify the mobility patterns of urban commuters. Flying cars' hybrid operation on the ground and in the air, in conjunction with their (semi-) automated capabilities, may... Read More about An Exploratory Investigation of Public Perceptions Towards Key Benefits and Concerns from the Future Use of Flying Cars.

The Flying Car - Emergent Modeling & Simulation (M&S) Policies and Standards concerns (2019)
Presentation / Conference Contribution
Hulme, K., Anastasopoulos, P. C., Still, S., Fountas, G., Sonduru Pantangi, S., Ahmed, S. S., & Eker, U. (2019). The Flying Car - Emergent Modeling & Simulation (M&S) Policies and Standards concerns.

Emergent modes of Transportation are becoming increasingly paramount to our everyday lives. Simultaneously however, our surface transportation infrastructure is suffering from overuse, extreme traffic congestion, and roadway disrepair, which necessit... Read More about The Flying Car - Emergent Modeling & Simulation (M&S) Policies and Standards concerns.

Environmental and economic assessment of traffic-related air pollution using aggregate spatial information: A case study of Balneário Camboriú, Brazil (2019)
Journal Article
Tischer, V., Fountas, G., Polette, M., & Rye, T. (2019). Environmental and economic assessment of traffic-related air pollution using aggregate spatial information: A case study of Balneário Camboriú, Brazil. Journal of Transport and Health, 14, Article

Introduction Transportation is one of the main determinants of atmospheric pollutant emissions in urban areas. This externality has direct environmental, economic and public health consequences. This paper aims at investigating the space-time patte... Read More about Environmental and economic assessment of traffic-related air pollution using aggregate spatial information: A case study of Balneário Camboriú, Brazil.

An exploratory investigation of public perceptions towards safety and security from the future use of flying cars in the United States (2019)
Journal Article
Eker, U., Ahmed, S. S., Fountas, G., & Anastasopoulos, P. C. (2019). An exploratory investigation of public perceptions towards safety and security from the future use of flying cars in the United States. Analytic Methods in Accident Research, 23, https:/

This study aims at investigating public perceptions towards the safety and security implications that will arise after the future introduction of flying cars in the traffic fleet. In this context, we focus on individuals’ opinions about possible safe... Read More about An exploratory investigation of public perceptions towards safety and security from the future use of flying cars in the United States.

Statistical Assessment of Peer Opinions in Higher Education Rankings: The Case of U.S. Engineering Graduate Programs (2019)
Journal Article
Ghaisi, A., Fountas, G., Anastasopoulos, P., & Mannering, F. (2019). Statistical Assessment of Peer Opinions in Higher Education Rankings: The Case of U.S. Engineering Graduate Programs. Journal of Applied Research in Higher Education, 11(3), 481-492. htt

Unlike many other quantitative characteristics used to determine higher education rankings, opinion-based peer assessment scores, and the factors that may influence them, are not well understood. Using peer scores of U.S. colleges of engineering as r... Read More about Statistical Assessment of Peer Opinions in Higher Education Rankings: The Case of U.S. Engineering Graduate Programs.

Public Willingness to Use Autonomous Vehicles and Flying Cars for Airport Access Trips (2019)
Presentation / Conference Contribution
Ahmed, S. S., Pantangi, S. S., Eker, U., Fountas, G., Still, S., & Anastasopoulos, P. (2019). Public Willingness to Use Autonomous Vehicles and Flying Cars for Airport Access Trips. In Abstract Book: 15th Annual International Conference on Tourism. 10-13

Recent technological advances have been playing an instrumental role in the development of autonomous vehicles (AVs) and flying cars, which are expected to be introduced to the transportation system in near future. These emerging transport... Read More about Public Willingness to Use Autonomous Vehicles and Flying Cars for Airport Access Trips.

A note on accounting for underlying injury-severity states in statistical modeling of injury accident data (2019)
Presentation / Conference Contribution
Fountas, G., & Rye, T. A note on accounting for underlying injury-severity states in statistical modeling of injury accident data. Presented at 10th International Conference on Ambient Systems, Networks and Technologies (ANT), Leuven, Belgium

This study provides an empirical analysis of the severity outcomes of injury accidents (i.e., accidents that resulted in an injury-involved outcome) by exploring the possibility of two underlying injury-severity states: the minor-injury state and the... Read More about A note on accounting for underlying injury-severity states in statistical modeling of injury accident data.

The effects of driver fatigue, gender, and distracted driving on perceived and observed aggressive driving behavior: A correlated grouped random parameters bivariate probit approach. (2019)
Journal Article
Fountas, G., Pantangi, S. S., Hulme, K. F., & Anastasopoulos, P. C. (2019). The effects of driver fatigue, gender, and distracted driving on perceived and observed aggressive driving behavior: A correlated grouped random parameters bivariate probit approa

Previous research has shown that the determinants of perceived and observed aggressive driving behavior may differ. However, the consideration of major sources of aggressive patterns may introduce additional variations in the effect of such determin... Read More about The effects of driver fatigue, gender, and distracted driving on perceived and observed aggressive driving behavior: A correlated grouped random parameters bivariate probit approach..

A Preliminary Investigation of the Effectiveness of High Visibility Enforcement Programs Using Naturalistic Driving Study Data: A Grouped Random Parameters Approach (2019)
Journal Article
Sonduru Pantangi, S., Fountas, G., Sarwar, M. T., Anastasopoulos, P. C., Blatt, A., Majka, K., Pierowicz, J., & Mohan, S. B. (2019). A Preliminary Investigation of the Effectiveness of High Visibility Enforcement Programs Using Naturalistic Driving Study

This paper seeks to assess the effectiveness of high-visibility enforcement (HVE) programs in terms of reducing aggressive driving behavior. Using Strategic Highway Research Program 2 (SHRP2) Naturalistic driving study (NDS) data, behavioral reactio... Read More about A Preliminary Investigation of the Effectiveness of High Visibility Enforcement Programs Using Naturalistic Driving Study Data: A Grouped Random Parameters Approach.

Applications of Knowledge Discovery in Massive Transportation Data: The Development of a Transportation Research Informatics Platform (TRIP). (2019)
Report
Majka, K., Nagler, E., James, A., Blatt, A., Pierowicz, J., Anastasopoulos, P. . C., & Fountnas, G. (2019). Applications of Knowledge Discovery in Massive Transportation Data: The Development of a Transportation Research Informatics Platform (TRIP). Feder

Transportation researchers and practitioners have access to unprecedented amounts of data but lack the tools to easily store, manipulate, and analyze these data. The Transportation Research Informatics Platform (TRIP) is an informatics-based system d... Read More about Applications of Knowledge Discovery in Massive Transportation Data: The Development of a Transportation Research Informatics Platform (TRIP)..

Effect of High Visibility Enforcement Programs on Aggressive Driving Behavior: An Empirical Analysis Using SHRP2 Naturalistic Driving Study (NDS) Data (2019)
Presentation / Conference Contribution
Fountas, G., Sonduru Pantangi, S., Anastasopoulos, P., Pierowicz, J., Majka, K., & Blatt, A. (2019, January). Effect of High Visibility Enforcement Programs on Aggressive Driving Behavior: An Empirical Analysis Using SHRP2 Naturalistic Driving Study (NDS)

This paper investigates the effect of High Visibility Enforcement on different types of aggressive driving behavior: speeding, tailgating, unsafe lane changes and ‘other’ aggressive driving behavior types (occurrence of not-yielding right-of-way and... Read More about Effect of High Visibility Enforcement Programs on Aggressive Driving Behavior: An Empirical Analysis Using SHRP2 Naturalistic Driving Study (NDS) Data.

Analysis of accident injury-severity outcomes: The zero-inflated hierarchical ordered probit model with correlated disturbances (2018)
Journal Article
Fountas, G., & Anastasopoulos, P. C. (2018). Analysis of accident injury-severity outcomes: The zero-inflated hierarchical ordered probit model with correlated disturbances. Analytic Methods in Accident Research, 20, 30-45

In accident injury-severity analysis, an inherent limitation of the traditional ordered probit approach arises from the a priori consideration of a homogeneous source for the accidents that result in a no-injury (or zero-injury) outcome. Conceptually... Read More about Analysis of accident injury-severity outcomes: The zero-inflated hierarchical ordered probit model with correlated disturbances.

Stationary and Time-Varying Factors Affecting Highway Accident Occurrence and Injury-Severity: Addressing Unobserved Heterogeneity with Alternate Random Parameters and Latent Class Models (2018)
Thesis
Fountas, G. Stationary and Time-Varying Factors Affecting Highway Accident Occurrence and Injury-Severity: Addressing Unobserved Heterogeneity with Alternate Random Parameters and Latent Class Models. (Thesis). University at Buffalo, The State University

In contemporary accident research, unobserved heterogeneity is recognized as one of the most challenging statistical modeling misspecification issues.Unobserved heterogeneity (i.e.,unobserved characteristics varying systematically across ob... Read More about Stationary and Time-Varying Factors Affecting Highway Accident Occurrence and Injury-Severity: Addressing Unobserved Heterogeneity with Alternate Random Parameters and Latent Class Models.

Analysis of accident injury-severities using a correlated random parameters ordered probit approach with time variant covariates (2018)
Journal Article
Fountas, G., Anastasopoulos, P. C., & Abdel-Aty, M. (2018). Analysis of accident injury-severities using a correlated random parameters ordered probit approach with time variant covariates. Analytic Methods in Accident Research, 18, 57-68. https://doi.org

This paper employs a correlated random parameters ordered probit modeling framework to explore time-variant and time-invariant factors affecting injury-severity outcomes in single-vehicle accidents. The proposed approach extends traditional random pa... Read More about Analysis of accident injury-severities using a correlated random parameters ordered probit approach with time variant covariates.

Analysis of vehicle accident-injury severities: A comparison of segment- versus accident-based latent class ordered probit models with class-probability functions (2018)
Journal Article
Fountas, G., Anastasopoulos, P. C., & Mannering, F. L. (2018). Analysis of vehicle accident-injury severities: A comparison of segment- versus accident-based latent class ordered probit models with class-probability functions. Analytic Methods in Accident

Using information from 1990 single-vehicle accidents that occurred between 2011 and 2013 in the state of Washington, the injury severity level of the most severely injured vehicle occupant is studied using two latent class modeling approaches: segmen... Read More about Analysis of vehicle accident-injury severities: A comparison of segment- versus accident-based latent class ordered probit models with class-probability functions.

Analysis of stationary and dynamic factors affecting highway accident occurrence: A dynamic correlated grouped random parameters binary logit approach (2018)
Journal Article
Fountas, G., Sarwar, M. T., Anastasopoulos, P. C., Blatt, A., & Majka, K. (2018). Analysis of stationary and dynamic factors affecting highway accident occurrence: A dynamic correlated grouped random parameters binary logit approach. Accident analysis and

Traditional accident analysis typically explores non-time-varying (stationary) factors that affect accident occurrence on roadway segments. However, the impact of time-varying (dynamic) factors is not thoroughly investigated. This paper seeks to simu... Read More about Analysis of stationary and dynamic factors affecting highway accident occurrence: A dynamic correlated grouped random parameters binary logit approach.

Effectiveness of various public private partnership pavement rehabilitation treatments: A big data informatics survival analysis of pavement service life (2017)
Report
David, D., Fountas, G., Sarwar, M. T., Eker, U., Akpinar, S., & Anastasopoulos, P. C. (2017). Effectiveness of various public private partnership pavement rehabilitation treatments: A big data informatics survival analysis of pavement service life. US Dep

Past research efforts have used a wide variety of methodological approaches to analyze pavement performance indicators, pavement rehabilitation treatments, and pavement service life. Using big data informatics methods, the intent of this study is to... Read More about Effectiveness of various public private partnership pavement rehabilitation treatments: A big data informatics survival analysis of pavement service life.

Simultaneous estimation of discrete outcome and continuous dependent variable equations: A bivariate random effects modeling approach with unrestricted instruments (2017)
Journal Article
Sarwar, M. T., Fountas, G., & Anastasopoulos, P. C. (2017). Simultaneous estimation of discrete outcome and continuous dependent variable equations: A bivariate random effects modeling approach with unrestricted instruments. Analytic Methods in Accident R

This paper proposes a novel methodology to simultaneously model discrete outcome (binary) and continuous dependent variables. The proposed modeling framework addresses unobserved heterogeneity by accounting for both panel effects, and for contemporan... Read More about Simultaneous estimation of discrete outcome and continuous dependent variable equations: A bivariate random effects modeling approach with unrestricted instruments.

A random thresholds random parameters hierarchical ordered probit analysis of highway accident injury-severities (2017)
Journal Article
Fountas, G., & Anastasopoulos, P. C. (2017). A random thresholds random parameters hierarchical ordered probit analysis of highway accident injury-severities. Analytic Methods in Accident Research, 15, 1-16. https://doi.org/10.1016/j.amar.2017.03.002

This study uses highway accident data collected in the State of Washington, between 2011 and 2013, to study the factors that affect accident injury-severities. To account for the fixed thresholds limitation of the traditional ordered probability mode... Read More about A random thresholds random parameters hierarchical ordered probit analysis of highway accident injury-severities.

Project Discrepancies in Roadway Construction and Preservation: A Statistical Analysis of Public–Private Partnership Contract Types in the US (2017)
Journal Article
Nahidi, S., Fountas, G., Sarvani, S. P., Sarwar, M. T., & Anastasopoulos, P. C. (2017). Project Discrepancies in Roadway Construction and Preservation: A Statistical Analysis of Public–Private Partnership Contract Types in the US. Frontiers in Built Env

At the planning stage of a roadway construction or preservation project, public agencies face a crucial challenge; to adopt and implement the appropriate contractual framework that can minimize the anticipated project discrepancies, on the basis of p... Read More about Project Discrepancies in Roadway Construction and Preservation: A Statistical Analysis of Public–Private Partnership Contract Types in the US.

Transport habits of travelers using new energy type modes: A random parameters hazard-based approach of travel distance (2017)
Journal Article
Anastasopoulos, P. C., Fountas, G., Sarwar, M. T., Karlaftis, M. G., & Sadek, A. W. (2017). Transport habits of travelers using new energy type modes: A random parameters hazard-based approach of travel distance. Transportation Research Part C : Emerging

With environmental concerns on the rise, identifying the factors that affect travel demand for energy efficient and environmentally friendly means of transportation becomes critical. It is, thus, beneficial to identify the characteristics of new ener... Read More about Transport habits of travelers using new energy type modes: A random parameters hazard-based approach of travel distance.

Analysis of Stationary and Dynamic Factors Affecting Highway Accident Occurrence (2017)
Presentation / Conference Contribution
Fountas, G., Sarwar, M. T., Anastasopoulos, P., Blatt, A., & Majka, K. (2017). Analysis of Stationary and Dynamic Factors Affecting Highway Accident Occurrence. In TRB 96th Annual Meeting Compendium of Papers

Traditional accident analysis typically explores non-time-varying (stationary) factors that affect accident occurrence on roadway segments. However, the impact of time-varying (dynamic) factors is not thoroughly investigated. This paper seeks to simu... Read More about Analysis of Stationary and Dynamic Factors Affecting Highway Accident Occurrence.

Preliminary Investigation of the Effectiveness of High-Visibility Crosswalks on Pedestrian Safety Using Crash Surrogates (2017)
Journal Article
Sarwar, M. T., Fountas, G., Bentley, C., Anastasopoulos, P. C., Blatt, A., Pierowicz, J., Majka, K., & Limoges, R. (2017). Preliminary Investigation of the Effectiveness of High-Visibility Crosswalks on Pedestrian Safety Using Crash Surrogates. Transporta

This paper, with the use of data from the SHRP 2 naturalistic driving study, provides a preliminary evaluation of the effectiveness of high-visibility crosswalks (HVCs) in improving pedestrian safety at un-controlled locations. This evaluation was ac... Read More about Preliminary Investigation of the Effectiveness of High-Visibility Crosswalks on Pedestrian Safety Using Crash Surrogates.

Transportation planning (2015)
Book Chapter
Karlaftis, M., Kepaptsoglou, K., & Fountas, G. (2015). Transportation planning. In D. Teodorović (Ed.), The Routledge handbook of transportation (188-210). New York: Routledge

No abstract available.

Weather impact on containership routing in closed seas: A chance-constraint optimization approach (2015)
Journal Article
Kepaptsoglou, K., Fountas, G., & Karlaftis, M. G. (2015). Weather impact on containership routing in closed seas: A chance-constraint optimization approach. Transportation Research Part C : Emerging Technologies, 55, 139-155. https://doi.org/10.1016/j.trc

Weather conditions have a strong effect on the operation of vessels and unavoidably influence total time at sea and associated transportation costs. The velocity and direction of the wind in particular may considerably affect travel speed of vessels... Read More about Weather impact on containership routing in closed seas: A chance-constraint optimization approach.