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Dang M, Jin Y, Hang P, Crosato L, Sun Y, Wei C. Coupling intention and actions of vehicle-pedestrian interaction: A virtual reality experiment study. ACCIDENT; ANALYSIS AND PREVENTION 2024; 203:107639. [PMID: 38763064 DOI: 10.1016/j.aap.2024.107639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 04/30/2024] [Accepted: 05/11/2024] [Indexed: 05/21/2024]
Abstract
The interactions between vehicles and pedestrians are complex due to their interdependence and coupling. Understanding these interactions is crucial for the development of autonomous vehicles, as it enables accurate prediction of pedestrian crossing intentions, more reasonable decision-making, and human-like motion planning at unsignalized intersections. Previous studies have devoted considerable effort to analyzing vehicle and pedestrian behavior and developing models to forecast pedestrian crossing intentions. However, these studies have two limitations. First, they mainly focus on investigating variables that explain pedestrian crossing behavior rather than predicting pedestrian crossing intentions. Moreover, some factors such as age, sensation seeking and social value orientation, used to establish decision-making models in these studies are not easily accessible in real-world scenarios. In this paper, we explored the critical factors influencing the decision-making processes of human drivers and pedestrians respectively by using virtual reality technology. To do this, we considered available kinematic variables and analyzed the internal relationship between motion parameters and pedestrian behavior. The analysis results indicate that longitudinal distance and vehicle acceleration are the most influential factors in pedestrian decision-making, while pedestrian speed and longitudinal distance also play a crucial role in determining whether the vehicle yields or not. Furthermore, a mathematical relationship between a pedestrian's intention and kinematic variables is established for the first time, which can help dynamically assess when pedestrians desire to cross. Finally, the results obtained in driver-yielding behavior analysis provide valuable insights for autonomous vehicle decision-making and motion planning.
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Affiliation(s)
- Meiting Dang
- School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast BT7 1NN, UK
| | - Yan Jin
- School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast BT7 1NN, UK
| | - Peng Hang
- College of Transportation Engineering, Tongji University, Shanghai 201804, China
| | - Luca Crosato
- School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast BT7 1NN, UK; School of Computer Science, Northumbria University Newcastle, Ellison Pl, Newcastle upon Tyne NE1 8ST, UK
| | - Yuzhu Sun
- School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast BT7 1NN, UK
| | - Chongfeng Wei
- School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast BT7 1NN, UK.
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Rasch A, Tarakanov Y, Tellwe G, Dozza M. Drivers passing cyclists: How does sight distance affect safety? Results from a naturalistic study. JOURNAL OF SAFETY RESEARCH 2023; 87:76-85. [PMID: 38081725 DOI: 10.1016/j.jsr.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/16/2023] [Accepted: 09/08/2023] [Indexed: 12/18/2023]
Abstract
INTRODUCTION Cycling is popular for its ecological, economic, and health benefits. However, especially in rural areas, cyclists may need to share the road with motorized traffic, which is often perceived as a threat. Overtaking a cyclist is a particularly critical maneuver for drivers as they need to control their lateral clearance and speed when passing the cyclist, possibly in the presence of oncoming vehicles or view-obstructing curves. An overtaking vehicle can destabilize the cyclist when passing with low clearance and high speed. At the same time, the cyclist may get scared and eventually stop cycling. In this work, we investigated how visibility regarding available sight distance-an important factor for infrastructure design and regulation-affects drivers' behavior when overtaking cyclists. METHOD Using four roadside-based traffic sensors, we collected naturalistic data that contained kinematics of drivers overtaking cyclists on a rural road in Sweden. We modeled lateral clearance and speed at the passing moment in response to variables such as sight distance and oncoming traffic with a Bayesian multivariate approach. RESULTS Fitted on 81 maneuvers, the model revealed that drivers reduced lateral clearance under reduced sight distance. Speed was similarly reduced, however, not as clearly. When an oncoming vehicle was present, it had a similar-yet stronger-effect than sight distance. While we found an overall correlation between clearance and speed, some maneuvers were recorded at critically low clearance. CONCLUSIONS Cyclists' safety is endangered when passed by drivers under reduced visibility or close to oncoming traffic. PRACTICAL APPLICATIONS Decision-making for infrastructure and policymaking should aim at prohibiting overtaking in areas with reduced visibility or close oncoming traffic. The model developed in this study may serve as a reference to vehicle active-safety systems and automated driving. The collected and processed data may support evaluating driver models fitted on less ecologically valid data and simulated active-safety systems.
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Affiliation(s)
- Alexander Rasch
- Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Hörselgången 4, 41756 Göteborg, Sweden.
| | - Yury Tarakanov
- Viscando AB, Anders Carlssons gata 14, 41755 Göteborg, Sweden
| | - Gustav Tellwe
- Viscando AB, Anders Carlssons gata 14, 41755 Göteborg, Sweden
| | - Marco Dozza
- Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Hörselgången 4, 41756 Göteborg, Sweden
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Alam MR, Batabyal D, Yang K, Brijs T, Antoniou C. Application of naturalistic driving data: A systematic review and bibliometric analysis. ACCIDENT; ANALYSIS AND PREVENTION 2023; 190:107155. [PMID: 37379650 DOI: 10.1016/j.aap.2023.107155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 03/19/2023] [Accepted: 06/04/2023] [Indexed: 06/30/2023]
Abstract
The application of naturalistic driving data (NDD) has the potential to answer critical research questions in the area of driving behavior assessment, as well as the impact of exogenous and endogenous factors on driver safety. However, the presence of a large number of research domains and analysis foci makes a systematic review of NDD applications challenging in terms of information density and complexity. While previous research has focused on the execution of naturalistic driving studies and on specific analysis techniques, a multifaceted aggregation of NDD applications in Intelligent Transportation System (ITS) research is still unavailable. In spite of the current body of work being regularly updated with new findings, evolutionary nuances in this field remain relatively unknown. To address these deficits, the evolutionary trend of NDD applications was assessed using research performance analysis and science mapping. Subsequently, a systematic review was conducted using the keywords "naturalistic driving data" and "naturalistic driving study data". As a result, a set of 393 papers, Published between January 2002-March 2022, was thematically clustered based on the most common application areas utilizing NDD. the results highlighted the relationship between the most crucial research domains in ITS, where NDD had been incorporated, and application areas, modeling objectives, and analysis techniques involving naturalistic databases.
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Affiliation(s)
- Md Rakibul Alam
- Chair of Transportation Systems Engineering, Technical University of Munich, Munich, Germany.
| | - Debapreet Batabyal
- Chair of Transportation Systems Engineering, Technical University of Munich, Munich, Germany
| | - Kui Yang
- Chair of Transportation Systems Engineering, Technical University of Munich, Munich, Germany
| | - Tom Brijs
- Transportation Research Institute, Hasselt University, Belgium
| | - Constantinos Antoniou
- Chair of Transportation Systems Engineering, Technical University of Munich, Munich, Germany
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Sheykhfard A, Haghighi F, Fountas G, Das S, Khanpour A. How do driving behavior and attitudes toward road safety vary between developed and developing countries? Evidence from Iran and the Netherlands. JOURNAL OF SAFETY RESEARCH 2023; 85:210-221. [PMID: 37330871 DOI: 10.1016/j.jsr.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/24/2022] [Accepted: 02/07/2023] [Indexed: 06/19/2023]
Abstract
INTRODUCTION The rates of road traffic injuries and fatalities in developing countries are significantly higher than in developed countries. This study examines the differences in driving behavior, road safety attitudes, and driving habits between a developed country (the Netherlands) and a developing country (Iran), which bear major differences in terms of crash involvement per population. METHOD In this context, this study assesses the statistical association of crash involvement with errors, lapses, aggressive driving incidents, and non-compliance with traffic rules, attitudes, and habits. Structural equation modeling was used to evaluate data obtained from 1,440 questionnaires (720 samples for each group). RESULTS The results revealed that more insecure attitudes toward traffic-regulation observance, negative driving habits, and risky behaviors, such as traffic rule violations act as influential factors of crash involvement. Iranian participants showed a greater likelihood to get involved in violations and driving habits with a higher level of risk. In addition, lower levels of safety attitudes toward traffic-regulation observance were observed. On the other hand, Dutch drivers were more likely to report lapses and errors. Dutch drivers also reported safer behavior in terms of unwillingness to engage in risky behaviors such as violations (speeding and no-overtaking). The structural equation models for crash involvement based on behaviors, attitudes, and driving habits were also evaluated for their accuracy and statistical fit using relevant indicators. PRACTICAL APPLICATIONS Finally, the findings of the present study point out the need for extensive research in some areas to foster policies that can effectively enhance safer driving.
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Affiliation(s)
- Abbas Sheykhfard
- Department of Civil Engineering, Babol Noshirvani University of Technology, Mazandaran 4714871167, Iran.
| | - Farshidreza Haghighi
- Department of Civil Engineering, Babol Noshirvani University of Technology, Mazandaran 4714871167, Iran.
| | - Grigorios Fountas
- Department of Transportation and Hydraulic Engineering, School of Rural and Surveying Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Subasish Das
- Texas State University, 601 University Drive, San Marcos, TX 77866, United States.
| | - Ali Khanpour
- Department of Transportation, Faculty of Engineering, Imam Khomeini International University, Qazvin, Iran.
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Sun S, Zhang Z, Zhang Z, Deng P, Tian K, Wei C. How Do Human-Driven Vehicles Avoid Pedestrians in Interactive Environments? A Naturalistic Driving Study. SENSORS (BASEL, SWITZERLAND) 2022; 22:7860. [PMID: 36298210 PMCID: PMC9610887 DOI: 10.3390/s22207860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
One of the major challenges for autonomous vehicles (AVs) is how to drive in shared pedestrian environments. AVs cannot make their decisions and behaviour human-like or natural when they encounter pedestrians with different crossing intentions. The main reasons for this are the lack of natural driving data and the unclear rationale of the human-driven vehicle and pedestrian interaction. This paper aims to understand the underlying behaviour mechanisms using data of pedestrian-vehicle interactions from a naturalistic driving study (NDS). A naturalistic driving test platform was established to collect motion data of human-driven vehicles and pedestrians. A manual pedestrian intention judgment system was first developed to judge the pedestrian crossing intention at every moment in the interaction process. A total of 98 single pedestrian crossing events of interest were screened from 1274 pedestrian-vehicle interaction events under naturalistic driving conditions. Several performance metrics with quantitative data, including TTC, subjective judgment on pedestrian crossing intention (SJPCI), pedestrian position and crossing direction, and vehicle speed and deceleration were analyzed and applied to evaluate human-driven vehicles' yielding behaviour towards pedestrians. The results show how vehicles avoid pedestrians in different interaction scenarios, which are classified based on vehicle deceleration. The behaviour and intention results are needed by future AVs, to enable AVs to avoid pedestrians more naturally, safely, and smoothly.
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Affiliation(s)
- Shulei Sun
- Key Laboratory of Automobile Measurement and Control & Safety, Xihua University, Chengdu 610039, China
- Engineering Research Center of Advanced Energy Saving Driving Technology, Ministry of Education, Chengdu 610031, China
| | - Ziqiang Zhang
- Key Laboratory of Automobile Measurement and Control & Safety, Xihua University, Chengdu 610039, China
| | - Zhiqi Zhang
- Key Laboratory of Automobile Measurement and Control & Safety, Xihua University, Chengdu 610039, China
| | - Pengyi Deng
- Key Laboratory of Automobile Measurement and Control & Safety, Xihua University, Chengdu 610039, China
| | - Kai Tian
- Institute for Transport Studies, University of Leeds, Leeds LS2 9JT, UK
| | - Chongfeng Wei
- School of Mechanical and Aerospace Engineering, Queen’s University Belfast, Belfast BT9 5AG, UK
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Ghomi H, Hussein M. An integrated text mining, literature review, and meta-analysis approach to investigate pedestrian violation behaviours. ACCIDENT; ANALYSIS AND PREVENTION 2022; 173:106712. [PMID: 35598395 DOI: 10.1016/j.aap.2022.106712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 04/27/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
The goal of this study is to provide an overview of previous research that investigated pedestrian violation behaviour, with a focus on identifying the contributing factors of such behaviour, its impact on pedestrian safety, the mitigation strategies, the limitations of current studies, and the future research directions. To that end, the Latent Dirichlet Allocation (LDA) text mining method was applied to extract a comprehensive list of studies that were conducted during the past 21 years related to pedestrian violation behaviours. Using the extracted studies, a multi-sectional literature review was developed to provide a comprehensive understanding of the different aspects related to pedestrian violations. Afterward, a meta-analysis was undertaken, using the studies that reported quantitative results, in order to obtain the average impact of the different contributing factors on the frequency of pedestrian violations. The study found that pedestrian violations are one of the hazardous behaviours that contribute to both the frequency and severity of pedestrian-vehicle collisions. According to the literature, the waiting time at the curbside, traffic volume, walking speed, pedestrian distraction, the presence of bus stops and schools, and the presence of on-street parking are among the key factors that increase the likelihood of pedestrian violations. The study has also reviewed a wide range of strategies that can be used to mitigate violations and reduce the safety consequences of such behaviour, including simple engineering-based countermeasures, enforcement, solutions that rely on advanced in-vehicle technologies, and infrastructure connectivity features, educational programs, and public campaigns.
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Affiliation(s)
- Haniyeh Ghomi
- Department of Civil Engineering, McMaster University, 1280 Main Street West Hamilton, Ontario L8S 4L7, Canada.
| | - Mohamed Hussein
- Department of Civil Engineering, McMaster University, 1280 Main Street West Hamilton, Ontario L8S 4L7, Canada
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Dozza M, Violin A, Rasch A. A data-driven framework for the safe integration of micro-mobility into the transport system: Comparing bicycles and e-scooters in field trials. JOURNAL OF SAFETY RESEARCH 2022; 81:67-77. [PMID: 35589307 DOI: 10.1016/j.jsr.2022.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/11/2021] [Accepted: 01/26/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Recent advances in technology create new opportunities for micro-mobility solutions even as they pose new challenges to transport safety. For instance, in the last few years, e-scooters have become increasingly popular in several cities worldwide; however, in many cases, the municipalities were simply unprepared for the new competition for urban space between traditional road users and e-scooters, so that bans became a necessary, albeit drastic, solution. In many countries, traditional vehicles (such as bicycles) may not be intrinsically safer than e-scooters but are considered less of a safety threat, possibly because-for cyclists-social norms, traffic regulations, and access to infrastructure are established, reducing the number of negative stakeholders. Understanding e-scooter kinematics and e-scooterist behavior may help resolve conflicts among road users, by favoring a data-driven integration of these new e-vehicles into the transport system. In fact, regulations and solutions supported by data are more likely to be acceptable and effective for all stakeholders. As new personal-mobility solutions enter the market, e-scooters may just be the beginning of a micro-mobility revolution. METHOD This paper introduces a framework (including planning, execution, analysis, and modeling) for a data-driven evaluation of micro-mobility vehicles. The framework leverages our experience assessing bicycle dynamics in real traffic to make objective and subjective comparisons across different micro-mobility solutions. In this paper, we use the framework to compare bicycles and e-scooters in field tests. RESULTS The preliminary results show that e-scooters may be more maneuverable and comfortable than bicycles, although the former require longer braking distances. PRACTICAL APPLICATIONS Data collected from e-scooters may, in the short term, facilitate policy making, geo-fencing solutions, and education; in the long run, the same data will promote the integration of e-scooters into a cooperative transport system in which connected automated vehicles share the urban space with micro-mobility vehicles. Finally, the framework and the models presented in this paper may serve as a reference for the future assessment of new micro-mobility vehicles and their users' behavior (although advances in technology and novel micro-mobility solutions will inevitably require some adjustments).
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A Review of Vehicle-to-Vulnerable Road User Collisions on Limited-Access Highways to Support the Development of Automated Vehicle Safety Assessments. SAFETY 2022. [DOI: 10.3390/safety8020026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study aims to provide evidence to support the development of automated vehicle (AV) safety assessments that consider the possible presence of non-motorized vulnerable road-users (VRUs) on limited-access highways. Although limited-access highways are designed to accommodate high-speed motor vehicles, collisions involving VRUs on such roadways are frequently reported. A narrative review is conducted, covering the epidemiology of VRUs crashes on limited-access highways to identify typical crash patterns considering collisions severity and the underlying reasons for the VRUs to use the highway. The review results show that occupants alighting from a disabled or crashed vehicle, people seeking help or helping others, highway maintenance zones, police stops, and people crossing a highway should be given priority to ensure VRU safety on limited-access highways. The results are summarized in figures with schematic models to generate test scenarios for AV safety assessment. Additionally, the results are discussed using two examples of traffic situations relevant to the potential AV-VRU crashes on highways and the current performance of autonomous emergency braking and autonomous emergency steering systems. These findings have important implications for producing scenarios in which AV may not produce crashes lest it performs worse than human drivers in the proposed scenarios.
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Mukherjee D, Mitra S. Proactive pedestrian safety evaluation at urban road network level, an experience in Kolkata City, India. Int J Inj Contr Saf Promot 2021; 29:160-181. [PMID: 34486925 DOI: 10.1080/17457300.2021.1973509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In developing nations, road traffic crashes involving pedestrians have become a foremost worry. Presently, most of the road safety assessment projects and selection of interventions are still restricted to traditional methods that depend on historical crash data. However, in low and middle-income countries such as India, the availability, reliability, and accuracy of crash data are uncertain. Alternatively, Post Encroachment Time (PET) has added attention as a proximal indicator to examine pedestrian-vehicular potential crashes and address pedestrian risk under mixed traffic conditions. Hence, it will be meaningful to examine if the PET is a good substitute for pedestrian-vehicular crashes and if so, what built environment and pedestrian-level factors influence PET. In this background, the present study establishes a mathematical association between the average PET value of the urban road network level and actual crashes. Afterward, multiple linear regression models are developed to study the impact of the built environment, traffic parameters, and pedestrian-level attributes on PET. The outcomes indicate that vehicle speed, lack of enforcement, absence of traffic signal (for traffic as well as pedestrians), land use type, slum population, inadequate sight distance, pedestrian's state of crossing, and pedestrian's risky crossing behaviour substantially affect the average PET at road network-level.
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Affiliation(s)
- Dipanjan Mukherjee
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Sudeshna Mitra
- Transport Specialist, Global Road Safety Facility, The World Bank, Washington, DC, USA
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The Effectiveness of Selected Devices to Reduce the Speed of Vehicles on Pedestrian Crossings. SUSTAINABILITY 2021. [DOI: 10.3390/su13179678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Accidents involving pedestrians often result in serious injury or death. The main goal of this conducted research is to evaluate selected devices that will help reduce the speed of vehicles on pedestrian crossings. Many devices from a group of “speed control measures” and “mid block tools” (refugee islands, speed tables, and raised pedestrian crossings) are examined to find the most effective ones. In our research, the range of reduction of a vehicle’s speed is used as a main measure of effectiveness, but a wider statistical analysis was conducted as well. One of the results of the research is the identification of three categories of devices referred to as high effectives (good), medium effectives (intermediate), and low or lack of effectives (bad). The content of the paper starts by highlighting the reasons to reduce the vehicle’s speed on pedestrian crossings (as an introduction). Next, we present the description of devices used to reduce the vehicle’s speed with a presentation of the research of their effectiveness. The studies that have been conducted are described in the following chapters: first, the characteristic of method and location, second, with discussion, the results of research and identification of the three categories of devices. The paper is then summarized by conclusions and comments. The research only covered the issues of road traffic engineering. The research was made in Poland, but the conclusions could be useful worldwide due to similar traffic rules and technical solutions.
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Singh H, Kathuria A. Analyzing driver behavior under naturalistic driving conditions: A review. ACCIDENT; ANALYSIS AND PREVENTION 2021; 150:105908. [PMID: 33310431 DOI: 10.1016/j.aap.2020.105908] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/20/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
For a decade, researchers working in the area of road safety have started exploring the use of driving behavior data for a better understanding of the causes related to road accidents. A review of the literature reveals the excellent potential of naturalistic driving studies carried out by collecting vehicle performance data and driver behavior data during normal, impaired, and safety-critical situations. An in-depth understanding of driver behavior helps analyze and implement pre-crash safety measures - the development of enforcement policies, infrastructure design, and intelligent vehicle safety systems. The present paper attempts to review the naturalistic driving studies that have been undertaken so far. The paper begins with an overview of different methods for collecting unobtrusive driver behavior data during their day to day trip, followed by a discussion of various factors affecting driving behavior and their influence on vehicle performance parameters. The paper also discusses the strategies mentioned in the literature for improving driving behavior using naturalistic driving studies to enhance road safety. Some of the major findings of this review suggest that i) driver behavior is a major cause in the majority of the road accidents ii) drivers generally reduce their speed and increases headway as a compensatory measure to reduce the workload imposed during distracting activity and adverse weather conditions iii) mobile phone has emerged as a potential device for collecting naturalistic driving data and, iv) improvement in driving behavior can be achieved by providing feedback to the drivers about their driving behavior. This can be done by implementing usage-based insurance schemes such as pay as you drive (PAYD), pay how you drive (PHYD), and manage how you drive (MHYD). While a considerable amount of research has been done to analyze driving behavior under naturalistic conditions, some areas which are yet to be explored are highlighted in the present paper.
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Affiliation(s)
- Harpreet Singh
- Department of Civil Engineering, Indian Institute of Technology Jammu (IIT-JMU), Jammu, India.
| | - Ankit Kathuria
- Department of Civil Engineering, Indian Institute of Technology Jammu (IIT-JMU), Jammu, India.
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