Browsing Civil & Architectural Engineering by Author "Dias, Charitha"
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Are Professional Drivers more Aggressive than General Drivers? A Case Study from Doha, Qatar
Dias, Charitha; Kharbeche, Mohamed; Muley, Deepti; Kashem, Abdurahman; AbulFahed, Mohammed; Iral, Sam Verniel; Abdelfattahb, Nooreldeen... more authors ... less authors ( Elsevier B.V. , 2022 , Conference Paper)Previous studies have revealed that aggressive and reckless driving can largely affect the occurrence and severity of road crashes. There could be intentional aggressive and unsafe acts, which could significantly affect ... -
Defensive or competitive Autonomous Vehicles: Which one interacts safely and efficiently with pedestrians?
Hong, Zhu; Alhajyaseen, Wael; Iryo-Asano, Miho; Nakamura, Hideki; Dias, Charitha ( Elsevier , 2022 , Article)The emergence of Autonomous Vehicles (AVs) could provoke unexpected challenges in urban traffic environments. One such crucial challenge is the conflicts between pedestrians and AVs, particularly on unsignalized mid-block ... -
Exploring Crowd Management and Evacuation Strategies using Microscopic Pedestrian Simulation: A Case Study of Souq Waqif
Mohammed, Shabna Sayed; Dias, Charitha; Alhajyaseen, Wael; Alqaradawi, Mohammed Yousef ( Qatar University Press , 2023 , Conference Paper)Safe egress plans are critical for crowd evacuation at touristic attractions, particularly during special events, as visitors are often unaware of their options. Identification of bottlenecks in the walking spaces are vital ... -
Exploring Microscopic Characteristics of Bicycle Riders’ following Behaviors in a Single-File Movement
Dias, Charitha; Abdullah, Muhammad; Hussain, Qinaat; Salehi, Ahmad Mohammadtayeb; Nishiuchi, Hiroaki ( MDPI , 2023 , Article)Cycling can bring a wide range of social, economic, and health benefits to individuals and communities. The safety and efficiency of bicycle facilities can be significantly impacted by the interactions among riders. This ... -
Interactions between autonomous vehicles and pedestrians at unsignalized mid-block crosswalks considering occlusions by opposing vehicles
Zhu, Hong; Iryo-Asano, Miho; Alhajyaseen, Wael K.M.; Nakamura, Hideki; Dias, Charitha ( Elsevier Ltd , 2021 , Article)Visibility can be identified as one of the critical determinants for the safety performance of autonomous vehicles (AVs) on unsignalized mid-block crosswalks (UMC), which may be significantly influenced by build-up environment ... -
Lane-based analysis of the saturation flow rate considering traffic composition
Mohammad, Anas A.; Al Nawaiseh, Hazem M.; Alhajyaseen, Wael K.; Dias, Charitha; Mehran, Babak ( Informa UK Limited - Taylor & Francis , 2023 , Article)Saturation flow rate (SFR) is an essential metric for estimating the capacities of signalized intersections. Many factors, including traffic composition, configuration and geometry of the intersection, and driver behavior, ... -
Pedestrians’ Microscopic Walking Dynamics in Single-File Movement: The Influence of Gender
Dias, Charitha; Abdullah, Muhammad; Ahmed, Dawood; Subaih, Rudina ( MDPI , 2022 , Article)Demographics of individuals could largely influence their behaviors and interactions with surrounding pedestrians. This study investigates the influence of pedestrians’ gender on microscopic walking dynamics of single-file ... -
Safety Analysis of Merging Vehicles Based on the Speed Difference between on-Ramp and Following Mainstream Vehicles Using NGSIM Data
Hussain, Qinaat; Dias, Charitha; Al-Shahrani, Ali; Hussain, Intizar ( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Highway merging points are critical elements due to the interactions between merging vehicles and following vehicles on the outermost lane of the highway stream. Such interactions could have significant implications for ...