Browsing Traffic Safety by Author "Dias, Charitha"
Now showing items 1-15 of 15
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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 ... -
Empirical evaluation of change in crash risk due to lane marking reallocation: A case study in Kochi City, Japan
Hiroaki, Nishiuchi; Dias, Charitha; Kawato, Satsuki ( Elsevier , 2023 , Article)Lane markings are considered an essential component of a road system. As highlighted in previous studies, they are directly linked to efficiency and safety. The rearrangement or reallocation of lane markings can be an ... -
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 ... -
Exploring the traveler’s intentions to use public transport during the covid-19 pandemic while complying with precautionary measures
Abdullah, Muhammad; Ali, Nazam; Dias, Charitha; Campisi, Tiziana; Javid, Muhammad Ashraf ( Multidisciplinary Digital Publishing Institute (MDPI) , 2021 , Article)Public transport use has drastically declined during the COVID-19 pandemic because the virus spreads through close contact with infected people and contaminated surfaces, especially in closed-environments. Evidence suggests ... -
Improved traffic safety at work zones through animation-based variable message signs
Almallah, Mustafa; Hussain, Qinaat; Alhajyaseen, Wael K.M.; Pirdavani, Ali; Brijs, Kris; Dias, Charitha; Brijs, Tom... more authors ... less authors ( Elsevier Ltd , 2021 , Article)Work zones are established to provide a safe environment for all road users and road workers. However, based on the statistics, they can be considered as crash prone zones due to changes in the road alignments and the ... -
Influence of COVID-19 mobility-restricting policies on individual travel behavior in Malaysia
Dias, Charitha; Rahman, Noorhazlinda Abd; Abdullah, Muhammad; Sukor, Nur Sabahiah Abdul ( Multidisciplinary Digital Publishing Institute (MDPI) , 2021 , Article)The COVID-19 pandemic has resulted in new postpandemic travel patterns as a result of the stay-at-home policies and restricted movement orders imposed by the Malaysian government. The purpose of this study was to investigate ... -
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, ... -
Motorcyclists’ Safety on Expressways: Subjective and Objective Evaluations
Suzuk, Koji; Alhajyaseen, Wael K. M.; Imada, Kazuki; Dias, Charitha ( Springer Berlin Heidelberg , 2019 , Article)This study objectively and subjectively investigates the factors influencing motorcyclists’ safety on expressways. The relationships between motorcyclist stress while driving on expressways and potential influencing factors ... -
Pedestrian flow characteristics through different angled bends: Exploring the spatial variation of velocity
Hannun, Jamal; Dias, Charitha; Taha, Alaa Hasan; Almutairi, Abdulaziz; Alhajyaseen, Wael; Sarvi, Majid; Al-Bosta, Salim... more authors ... less authors ( Public Library of Science (PLOS) , 2022 , Article)Common geometrical layouts could potentially be bottlenecks, particularly during emergency and high density situations. When pedestrians are interacting with such complex geometrical settings, the congestion effect might ... -
Road Crossing at Unmarked Mid-Block Locations: Exploring Pedestrians’ Perception and Behavior
Abdullah, Muhammad; Dias, Charitha; Oguchi, Takashi ( Springer , 2022 , Article)Violations, risky behaviors and perceptions may largely contribute to crashes involving pedestrians, particularly at unmarked mid-block locations. The likelihood and severity of crashes at mid-block locations are higher ... -
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 ... -
Safety assessment of on-road cycling lanes: A comparative study of different layouts using driving simulator
Mustafa, Almallah; Alhajyaseen, Wael K.M.; Dias, Charitha ( Elsevier , 2024 , Article)Over the past few decades, a growing attention has been directed toward cycling due to its positive impacts on social, economic, and health aspects. Various countries are adopting and implementing strategies to promote ... -
Signal-Free Corridor Development and Their Impact on Pedestrians: Insights from Expert and Public Surveys
Abdullah, Muhammad; Ali, Nazam; Javid, Muhammad Ashraf; Aslam, Muhammad Waqar; Dias, Charitha ( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Increasing vehicular demand has compelled decision makers to turn urban roads into signal-free corridors (SFCs) in Lahore. These corridors aim at prioritizing car flow over other modes and consist of various car-centric ... -
Structural equation modeling of public transport use with COVID-19 precautions: An extension of the norm activation model
Muhammad, Ashraf Javid; Abdullah, Muhammad; Ali, Nazam; Dias, Charitha ( Elsevier , 2021 , Article)This study aims to identify the travelers’ attitudes and preferences towards the use of public transport during COVID-19 through the Norm-Activation Model (NAM). A questionnaire survey was designed to assess the traveler’s ...