The European Commission in cooperation with Transport Research Laboratory (TRL) and FKA GmbH, recently released a final report titled “Study on the need for harmonised rules to support the rise of micro mobility and increased road safety for personal mobility devices”. This report emphasizes the importance of accurate and harmonized data to support evidence-based policymaking and the achievement of Vision Zero targets. It further highlights how improved data practices can directly contribute to reducing road fatalities and serious injuries across the EU. 

A NTUA Diploma Thesis titled “Road Crashes Analysis In Greek Islands” was recently presented by Nikitas Maratos Filippidis. For this purpose, data on monthly arrivals, crashes, and fatalities were collected for 38 Greek islands, which were then divided into four groups based on their geographical location. Subsequently, these correlations were further examined through the development of Generalized Linear Models and Random Forest models using the R programming language. The results showed that arrivals on an island are positively correlated with the number of accidents and fatalities recorded during that period. Additionally, while arrivals were correlated with accidents across each group of islands examined, the results differed, possibly due to better road conditions on islands with high arrival numbers but low accident rates.  

A NTUA Diploma Thesis titled “Analysis of factors influencing traffic conditions changes in Athens” was recently presented by Evi Krini. For this reason, traffic data were collated from selected road segments in Athens, including traffic speed through Google Maps for 62 (road axes) and the hourly traffic volume at 26 points via the Centre for Traffic Management, covering the period from January to July 2022. Additionally, data on weather conditions were gathered, and the final database was completed with geometric road features. Subsequently a Machine Learning algorithm and Cluster Analyses were conducted. The application of the models revealed that traffic metrics are significantly related to the time and type of day (weekday/weekend), with peak traffic volume occurring on weekdays during morning rush hours. Moreover, an increase in temperature is associated with a decrease in traffic volume in the morning and an increase in the evening, while the presence of rain increases low volume of traffic and decreases high traffic speeds.   

A NTUA Diploma Thesis titled “Critical factors of safe micromobility in Greece” was recently presented by Anestis Gkiourtzidis. For this purpose,  descriptive analysis was conducted on a sample of 63 electric scooter users, and 9 binomial logistic regression models were developed based on data from the third edition of the international ESRA survey (E-Survey on Road Users’ Attitudes). The results showed that older users and those who recognize risks such as speed and lack of attention adopt safer practices. Social pressure within an area influences compliance with road safety rules, while women demonstrate more cautious behavior compared to men. Despite the mandatory use of helmets, many users do not comply, indicating the need for stricter enforcement and education. Based on the findings, several recommendations are proposed to improve the road safety of electric scooter users, including stricter law enforcement and targeted improvements to road infrastructure.  

A NTUA Diploma Thesis titled “Analysis of drink and drive on driven behavior and safety in urban environment” was recently presented by Themis Bouropoulou.  To achieve this goal, an experimental procedure was conducted using a driving simulator, through which the driving data of 35 participants were collected. To complete the necessary data collection, participants’ characteristics were also determined through a questionnaire survey. The analysis of the results was done through statistical analysis, specifically by developing statistical models using linear and binomial logistic regression. The main conclusions are that as the amount of alcohol in the body increases, the likelihood of an accident in an urban environment also increases. The distance from the vehicle ahead decreases as alcohol consumption increases. Finally, as the alcohol level in the body rises, the driver’s average reaction time to potential obstacles also increases.  

A NTUA Diploma Thesis titled “Safety Impact Investigation of an automated shuttle service based on network traffic simulation” was recently presented by Maria Takka. For this purpose,  three scenarios were carried out that differed in terms of the percentage of conventional and autonomous vehicles. For data analysis, polynomial logistic regression models were developed for each scenario. The results showed that the speed limit, the maximum deceleration of the second vehicle, the difference in vehicle speeds as observed at the minimum time-to-collision, the initial deceleration rate of the second vehicle, the type of conflict and the traffic capacity have a significant influence on the simulated hazard, which indicates critical conditions for the occurrence of a crash.  

A NTUA Diploma Thesis titled “Preferences of Public Transport passengers towards contactless bank card payments” was recently presented by Konstantinos Fotopoulos. To achieve this objective, data collection was conducted through a questionnaire with focused questions, completed by a large sample of commuters. Subsequently, binary and multinomial logistic regression models were developed. Results indicate that as the difficulties in purchasing tickets decrease and payment security is ensured, passengers are more likely to adopt the new payment and boarding system. In particular, those who seek information about the new system are more likely to embrace it, as they recognize its benefits. Access to information and familiarity with contactless payments play a critical role in strengthening their confidence, making them more open to new payment practices, such as using bank cards or digital wallets.  

A NTUA Diploma Thesis titled “Ιnvestigation of dangerous driving behaviour by exploiting naturalistic driving data” was recently presented by Eleni Theodoraki. To achieve this goal, fuseful data related to driver behaviour were collected through a naturalistic driving experiment in real-life conditions in Belgium and England combining machine and deep learning algorithms . The results showed that the most significant variables were the occurrence or non-occurrence of sudden acceleration and the occurrence or non-occurrence of sudden braking in Belgium and the total travel distance and the occurrence or non-occurrence of sudden acceleration in England.  

A NTUA Diploma Thesis titled “Critical factors of motorcyclists self-declared behaviour and safety globally” was recently presented by Dimitrios Oikonomou. For this purpose, five Binomial Logistic Regression models were used, exploiting data from the third edition of the ESRA survey (E-Survey on Road Users’ Attitudes). The five dependent variables used concerned riding without a helmet, riding under the influence of alcohol / substances, using mobile phone while riding, and exceeding the speed limit for moped and motorcycle riders. The statistical models confirmed that the independent variables in each model play a key role in self-reported behavior and motorcyclist safety globally. Gender stands out as an important factor, with men more prone to engaging in irregular behaviors. Another significant factor is environmental respect, as drivers who litter on the road are more likely to exhibit such behaviors.  

A NTUA Diploma Thesis titled “Analysis of eco-driving benefits in urban and highway environments using driving simulator” was recently presented by Maria Ioanna Sousouni. To achieve this objective, an experiment was conducted in a driving simulator, and 39 young people participated to collect road data.  The developed statistical models were related to carbon dioxide emission, carbon monoxide emission, nitrogen oxide emission and the accident probability. It was shown that eco-driving contributes to reducing the emission of carbon dioxide, carbon monoxide, nitrogen oxide and the probability of the driver being involved in an accident. The study showed that urban roads produce fewer pollutants than highways, but the risk of accidents is significantly higher, highlighting a major road safety concern.  

Τhe European Transport Safety Council (ETSC) recently published a new Report titled “Improving the Road Safety of E-scooters“. This Report calls for the development of mandatory technical requirements for all e-scooters sold in the European Union, highlighting the need for stronger road safety measures across Europe. Key recommendations include stricter e-scooter safety standards, such as a 20 km/h speed limit, to address rising urban safety concerns. Enhanced regulations aim to ensure safer roads for all users.  

A paper titled “Effectiveness of 30 km/h speed limit – A literature review” authored by George Yannis and Eva Michelaraki has been published in Journal of Safety Research. This study evaluates the impact of 30 km/h speed limits on road safety, emissions, fuel consumption, traffic flow, livability and public health. It was revealed that city-wide 30 km/h speed limit can save (on average) over 40% of lives, 30% of crashes, 20% of emissions and 3.7 dB of noise, while no impact in travel times was observed. Results demonstrated significant subsequent increase of active travelling (pedestrians, cyclists and e-scooters) and Public Transport passengers, as mobility conditions become more user friendly to the vulnerable road users. Public awareness campaigns and promoting active mobility options, such as walking and cycling, could further support the adoption of city-wide 30 km/h speed limits. 

The European Transport Safety Council (ETSC) has published a Position Paper titled “EU Multiannual Financial Framework 2028-2034 Funds for Road Safety“. In this paper, ETSC presents recommendations for funding for road safety initiatives within the next long-term EU budget, known as the Multiannual Financial Framework (MFF). These recommendations should support work towards meeting EU’s Vision Zero target of reducing road deaths and serious injuries by 50% by 2030, paving the way for safer roads across Europe.  

The European Union Road Federation (ERF) has released the updated Recommendations for Sign Inspection. These guidelines provide the road community with important updated information on practices and technical recommendations to reduce roadside injuries and fatalities. The publication aligns with the EU’s Vision Zero goals, emphasizing the importance of safe infrastructure in accident prevention and injury mitigation.  

The Horizon Europe research project IMPROVA has recently released the IMPROVA 1st Consortium Newsletter, which provides information on the latest outcomes of the EU-funded IMPROVA project focusing on advancing injury mitigation strategies to help achieve Vision Zero, under the European Commission’s Transport and Mobility sector.

The European Commission with the active contribution of NTUA, SWOV and KFV has published at the European Road Safety Observatory, the Powered Two-Wheelers Thematic Report which refers to the safety of moped riders and motorcyclists as vulnerable road users. This Thematic Report describes how PTWs participate in traffic, as well as PTWs in relation to road safety hazards. Moreover, countermeasures regarding safer road users, vehicles and roads are suggested.  

The TRB ACS10 Standing Committee organised with great success the Quarterly Meeting on Transport Safety Management Systems which was held online, on 25 September 2024. The primary focus of this meeting was the impact of the impact of the 30 km/h speed limit in urban areas.  NTUA actively contributed with the following presentation:

•  Impact of a 30 km/h City-Wide Speed Limit

The Connected, Cooperative and Automated Mobility Association (CCAM) has released the Quarterly Newsletter which provides information on the latest CCAM news aiming to create a more user-centered and inclusive mobility system, increasing road safety while reducing congestion and environmental footprint. Established in 2021, the international not-for-profit organisation CCAM Association represents the private side of the CCAM Partnership, bringing together 230 innovation stakeholders involved in the connected, cooperative and automated mobility field. 

The International Transport Forum (ITF) has recently published a new Summary Report titled “Advancing Sustainable Mobility in Greece: Supporting SUMPs uptake“. This initiative supports Greek cities in developing and implementing Sustainable Urban Mobility Plans (SUMPs) that focus on environmentally friendly and safe transport solutions, such as walking, cycling, and public transport. It offers Greek local authorities practical guidance and tools to optimize transport planning, ensuring safer and more sustainable urban mobility systems, in order to achieve climate neutrality by the year 2030.   

A paper titled “Cost benefit analyst of reducing speed limits in Athens to 30 Km/h” authored by Stella Roussou, Virginia Petraki, Katerina Deliali, Armira Kontaxi and George Yannis has been published in Case Studies on Transport Policy. The study highlights the benefits of lowering speed limits in Athens from 50 km/h to 30 km/h, including a 30-40% reduction in traffic crashes and a 20-25% decrease in injury severity . Additionally, the policy could lead to lower by 10-15% CO2 emissions and improve conditions for pedestrians and cyclists. The overall benefits are projected to outweigh the costs by 3 to 5 times, making it a highly effective policy for safer, more sustainable urban mobility. 

The Horizon Europe research project metaCCAZE has recently released the metaCCAZE 1st Newsletter, which provides information on the latest outcomes of the EU-funded metaCCAZE project aiming to accelerate the deployment of smart systems that combine electric, automated and connected technologies and infrastructure, enabling zero-emission shared mobility services for both passengers and goods in European cities. 

The European Union Road Federation (ERF) has released the Road Statistics Yearbook 2024” with the active contribution of NTUA. As for many years, this publication provides the road community with important updated information on road transport sector and road infrastructure in Europe and beyond as an essential key element of the global mobility with one section focusing on road safety. 

The European Commission published the latest figures on Road safety in the EU, showing that 20,400 people were killed in road crashes in 2023, a 1% decrease in relation to 2022. While the underlying long-term trend is downward (-10% compared to 2019), the current pace of decline falls short of the required 4.5% annual reduction needed to achieve the EU’s goal of halving road deaths by 2030.  Preliminary figures for the first six months of 2024 indicate the number of deaths on EU roads has remained the same, compared with the same period in 2023. 

A new book titled “Governance Recommendations from Innovative Interdisciplinary Collaborations” authored by Imre Keserű, Samyajit Basu, Marianne Ryghaug and Tomas Moe Skjølsvold has been recently published. This book supports the transformation towards a more sustainable mobility and logistics system through its interdisciplinary approach and by formulating concrete policy recommendations. NTUA actively contributed with the following chapter, co-authored by Virginia Petraki, Apostolos Ziakopoulos and George Yannis:

• Providing State-Supported Financial Incentives and Benefits for Vehicle Insurance Policies Using Telematics

The Young and aging drivers Thematic Report of the European Survey of Road Users’ Safety Attitudes (ESRA) has been published with the active contribution of NTUA, containing a wealth of information on road safety in 39 countries across Europe, America and Asia-Oceania, based on the ESRA3 survey. This Thematic ESRA3 Report describes  the self-declared behaviours and perceived acceptability (social and personal) related to driving while impaired, speeding, and distraction, among young and aging drivers. Furthermore, it includes comparisons among the participating countries as well as results in relation to age and gender.  

The Speeding Thematic Report of the European Survey of Road Users’ Safety Attitudes (ESRA) has been published with the active contribution of NTUA, containing a wealth of information on road safety in 39 countries across Europe, America and Asia-Oceania, based on the ESRA3 survey. This Thematic ESRA3 Report describes the self-declared behaviour, acceptability, attitudes and support for policy measures regarding speeding. Factors associated with speeding per area and road type are also analysed. Furthermore, it includes comparisons among the participating countries as well as results in relation to age and gender.  

The Infrastructure Thematic Report of the European Survey of Road Users’ Safety Attitudes (ESRA) has been published with the active contribution of NTUA, containing a wealth of information on road safety in 39 countries across Europe, America and Asia-Oceania, based on the ESRA3 survey. This Thematic ESRA3 Report describes the use and the safety perception of infrastructure among different road users, including car drivers, moped riders and motorcyclists, cyclists and pedestrians. Furthermore, it includes comparisons among the participating countries as well as results in relation to age and gender.  

The Expert Group on Urban Mobility (EGUM)  of the European Commission has recently delivered a set of Recommendations for the Commission’s mid-term review of the EU Road Safety Policy Framework 2021-2030. Special focus is given on active mobility and road safety for Vulnerable Road Users, for which key risk factors and a set of Recommendations for people who walk, cycle and use light electric vehicles, micromobility devices and powered two-wheelers, are being provided. 

The European Commission with the active contribution of  NTUA,  SWOV and KFV has launched a Vulnerable Road Users promotion activity focusing on children, cyclists, pedestrians and Powered Two-Wheelers (mopeds and motorcycles). According to the new Reports from the European Road Safety Observatory, the high vulnerability of non-motorised road users in urban areas is highlighted, with a disproportionately high number of fatalities in these areas for children (46% of total fatalities) and pedestrians (73%), compared to the average for all road users (38%). Recommendations to reduce fatalities among vulnerable users, including infrastructure improvements, protective equipment and vehicle design are also provided.     

Eva Michelaraki has successfully defended her PhD dissertation titled: Improving driver safety tolerance zone through holistic analysis of road, vehicle and behavioural risk factors, under the supervision of NTUA Prof. George Yannis. Data from 190 drivers who participated in a large on-road and simulator driving experiment were exploited. An innovative methodology, consisting of both statistical analyses (Generalized Linear Models, Structural Equation Models) and machine learning techniques (Decision Trees, k-Nearest Neighbors, Neural Networks and Random Forests) was implemented. Results indicated that RF models outperformed the DT and kNN models across all metrics, making them the most effective for predicting speeding and headway, with overall accuracy up to 90%. It was also revealed that task complexity was positively correlated with risk, while coping capacity was negatively correlated with risk, indicating that drivers with higher coping capacity are better equipped to handle challenging driving situations.