Search Results - "Ziakopoulos, Apostolos"

Trip characteristics impact on the frequency of harsh events recorded via smartphone sensors by Kontaxi, Armira, Ziakopoulos, Apostolos, Yannis, George

“…The Internet of Things (IoT) constantly offers new opportunities and features to monitor and analyze driver behavior through wide use of smartphones, effective…”
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Perceptions towards autonomous vehicle acceptance: Information mining from Self-Organizing Maps and Random Forests by Ziakopoulos, Apostolos, Telidou, Christina, Anagnostopoulos, Apostolos, Kehagia, Fotini, Yannis, George

“…The present research investigates a range of factors affecting autonomous vehicle (AV) acceptance of Greek citizens through a questionnaire distributed to 563…”
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Pedestrian safety attitudes and self-declared behaviour in Greece by Nikolaou, Dimitrios, Ntontis, Alexandros, Michelaraki, Eva, Ziakopoulos, Apostolos, Yannis, George

“…In recent decades, remarkable improvements in road safety have been achieved in the form of reductions of crash numbers. However, the improvement of vulnerable…”
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Safety evaluation via conflict classification during automated shuttle bus service operations by Ziakopoulos, Apostolos, Oikonomou, Maria G., Sekadakis, Marios, Yannis, George

“…The widespread adoption of Connected and Automated Vehicles (CAVs) is being propelled, not only in the realm of private vehicles but also within transit…”
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Exploring speeding behavior using naturalistic car driving data from smartphones by Armira Kontaxi, Dimosthenis-Marios Tzoutzoulis, Apostolos Ziakopoulos, George Yannis

“…The present research aimed to identify critical factors that affect speeding behavior. For that purpose, high-resolution smartphone data collected from a…”
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Comparing Machine Learning Techniques for Predictions of Motorway Segment Crash Risk Level by Nikolaou, Dimitrios, Ziakopoulos, Apostolos, Dragomanovits, Anastasios, Roussou, Julia, Yannis, George

“…Motorways are typically the safest road environment in terms of injury crashes per million vehicle kilometres; however, given the high severity of crashes…”
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Modelling self-reported driver perspectives and fatigued driving via deep learning by Zoupos, Alexandros, Ziakopoulos, Apostolos, Yannis, George

“…Driving while fatigued is a considerably understudied risk factor contributing to car crashes every year. The first step in mitigating the respective crash…”
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Exploiting Surrogate Safety Measures and Road Design Characteristics towards Crash Investigations in Motorway Segments by Nikolaou, Dimitrios, Dragomanovits, Anastasios, Ziakopoulos, Apostolos, Deliali, Aikaterini, Handanos, Ioannis, Karadimas, Christos, Kostoulas, George, Frantzola, Eleni Konstantina, Yannis, George

“…High quality data on road crashes, road design characteristics, and traffic are typically required to predict crash frequency. Surrogate Safety Measures (SSMs)…”
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A review of spatial approaches in road safety by Ziakopoulos, Apostolos, Yannis, George

“…•This paper reviews spatial analyses in road safety research•Design characteristics of 132 spatial road safety studies are summarized on tables•The various…”
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Analysis of harsh braking and harsh acceleration occurrence via explainable imbalanced machine learning using high-resolution smartphone telematics and traffic data by Ziakopoulos, Apostolos

“…•Factors influencing harsh braking (HB) and harsh acceleration (HA) occurrence are explored.•Naturalistic data from smartphone sensors where combined with…”
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Spatial analysis of harsh driving behavior events in urban networks using high-resolution smartphone and geometric data by Ziakopoulos, Apostolos

“…•This paper exploits smartphone driving behavior data & OpenStreetMap geometric data.•Spatial analyses of harsh driving events are conducted across an urban…”
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Predicting VLCC fuel consumption with machine learning using operationally available sensor data by Papandreou, Christos, Ziakopoulos, Apostolos

“…In the maritime industry, more accurate predictions of fuel oil consumption (FOC) could yield multidimensional results including more precise bunker…”
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Analysis of mobile phone use engagement during naturalistic driving through explainable imbalanced machine learning by Ziakopoulos, Apostolos, Kontaxi, Armira, Yannis, George

“…•This research explores factors influencing mobile phone use in naturalistic driving.•A smartphone application with 6 feedback phases was the basis for data…”
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Spatial predictions of harsh driving events using statistical and machine learning methods by Ziakopoulos, Apostolos, Vlahogianni, Eleni, Antoniou, Constantinos, Yannis, George

“…•Smartphone driving behavior data & OpenStreetMap geometric data are exploited.•Harsh braking counts are spatially analyzed in an urban road network.•GWPR,…”
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Identifying the impact of the COVID-19 pandemic on driving behavior using naturalistic driving data and time series forecasting by Katrakazas, Christos, Michelaraki, Eva, Sekadakis, Marios, Ziakopoulos, Apostolos, Kontaxi, Armira, Yannis, George

“…•The impact of COVID-19 on speed, speeding and harsh braking is evaluated.•SARIMA time-series modelling is used for quantifying the pandemic…”
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Combined impact of road and traffic characteristic on driver behavior using smartphone sensor data by Petraki, Virginia, Ziakopoulos, Apostolos, Yannis, George

“…•This paper exploits high resolution driving behavior data obtained from smartphones.•The analysis is augmented by traffic data at the time of harsh behavior…”
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From conflicts to crashes: Simulating macroscopic connected and automated driving vehicle safety by Oikonomou, Maria G., Ziakopoulos, Apostolos, Chaudhry, Amna, Thomas, Pete, Yannis, George

“…•Estimating CAV crashes by converting microsimulation-generated conflicts.•Crash rates will be significantly lower in higher CAV MPRs.•Crash rates decrease…”
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One year of COVID-19: Impacts on safe driving behavior and policy recommendations by Michelaraki, Eva, Sekadakis, Marios, Katrakazas, Christos, Ziakopoulos, Apostolos, Yannis, George

“…•The effect on driving behavior and road safety due to COVID-19 response measures was assessed.•Data prior and during the lockdown periods of the pandemic in…”
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Review and ranking of crash risk factors related to the road infrastructure by Papadimitriou, Eleonora, Filtness, Ashleigh, Theofilatos, Athanasios, Ziakopoulos, Apostolos, Quigley, Claire, Yannis, George

“…•SafetyCube analysed the effects of crash risk factors regarding road infrastructure.•A taxonomy of 59 risk factors (alignment, road environment, traffic…”
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Investigation of the speeding behavior of motorcyclists through an innovative smartphone application by Kontaxi, Armira, Ziakopoulos, Apostolos, Yannis, George

“…The objective of the present study is twofold: (i) to explore the riding behavior of motorcyclists while speeding, based on detailed riding analytics collected…”
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