Event-based road safety assessment: A novel approach towards risk microsimulation in roundabouts

Bulla-Cruz, Lenin Alexander; Laureshyn, Aliaksei; Lyons, Liliana

doi:10.1016/j.measurement.2020.108192

Cited by 23 publications

(8 citation statements)

References 40 publications

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“…Calibration methods, as discussed by various studies, should ensure accurate predictions [75,76]. A concise overview of select peer-reviewed studies from 2019 to 2023, primarily using PTV Vissim [77] and Aimsun [78], is provided in Table 4 [76,[79][80][81][82][83][84][85][86][87][88][89][90][91][92][93][94][95][96][97][98]. However, research on roundabouts has significantly expanded, reflecting the increasing interest in integrating smart features for enhanced functionality [11].…”

Section: Models Methods and Implications For Roundabout Operational A...mentioning

confidence: 99%

“…Despite calibration needs, driving simulation technology offers clear advantages over real-scale measurements in evaluating safety, operational performance, and driving behavior [57,75,82]. Building infrastructural and traffic scenarios streamlines roundabout design optimization and enables a thorough assessment of various design solutions and their impact on traffic flow, safety, and overall efficiency (e.g., [14,84,93]).…”

Section: Findings From Research On Roundabout Solutions In the Contex...mentioning

confidence: 99%

See 1 more Smart Citation

Insights into Simulated Smart Mobility on Roundabouts: Achievements, Lessons Learned, and Steps Ahead

Tumminello,

Macioszek,

Granà

2024

Sustainability

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This paper explores the domain of intelligent transportation systems, specifically focusing on roundabouts as potential solutions in the context of smart mobility. Roundabouts offer a safer and more efficient driving environment compared to other intersections, thanks to their curvilinear trajectories promoting speed control and lower vehicular speeds for traffic calming. The synthesis review supported the authors in presenting current knowledge and emerging needs in roundabout design and evaluation. A focused examination of the models and methods used to assess safety and operational performance of roundabout systems was necessary. This is particularly relevant in light of new challenges posed by the automotive market and the influence of vehicle-to-vehicle communication on the conceptualization and design of this road infrastructure. Two case studies of roundabouts were analyzed in Aimsun to simulate the increasing market penetration rates of connected and autonomous vehicles (CAVs) and their traffic impacts. Through microscopic traffic simulation, the research evaluated safety and performance efficiency advancements in roundabouts. The paper concludes by outlining areas for further research and evolving perspectives on the role of roundabouts in the transition toward connected and autonomous vehicles and infrastructures.

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Section: Models Methods and Implications For Roundabout Operational A...mentioning

confidence: 99%

Section: Findings From Research On Roundabout Solutions In the Contex...mentioning

confidence: 99%

Insights into Simulated Smart Mobility on Roundabouts: Achievements, Lessons Learned, and Steps Ahead

Tumminello,

Macioszek,

Granà

2024

Sustainability

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“…This is a semi-automated video analysis software developed at Lund University and available as freeware ( 39 ). This tool has been used in several road safety studies ( 40 – 42 ).…”

Section: Methodsmentioning

confidence: 99%

Analysis of Pedestrians’ Road Crossing Behavior, in Social Groups

Baron

Faria

Sousa

et al. 2023

Transportation Research Record: Journal of the Transportation R

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A significant percentage of pedestrians walk in social groups (friends, families, or acquaintances who walk together). Although patterns generated by social interactions among group members have been shown to affect crowd dynamics, studies on the effect of social interactions at different crossing phases under low pedestrian density are limited. This study aims to comprehensively examine the influence of size and sex composition on pedestrians’ behaviors when walking alone and with friends in different phases before, during, and after the road crossing. For this, experiences were carried out with controlled small groups of friends (varying size and sex composition) at three unsignalized crosswalks with low pedestrian density. The average speed and distance between the young pedestrians in six segments of the trajectories (two in each phase), extracted from video recordings, were analyzed with linear mixed models. Results show that pedestrians reduce their speed when approaching the curb, they accelerate while on the crosswalk, and reduce again when they reach the other side. In all phases, the average speed of the groups was lower than the single pedestrians, and the females’ groups walked slower than the males, except during the crossing, where no sex-related differences were found. On the contrary, before the crossing, the distance increased and decreased from the second segment in the crosswalk. The smallest distance was observed between the female groups and dyads. These findings have relevant implications for research on pedestrian behavior, helping to better understand the complexity of pedestrian dynamics and improve pedestrian safety.

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“…The reactive approach employed in this context exhibits different deficiencies, namely, the constrained accessibility and substandard nature of collision data and the challenge of discerning factors. This contributes to the occurrence of collisions, which is an ethical quandary arising from the necessity of observing a sufficient number of collisions over an extended duration to conduct a statistically reliable safety analysis [ [82] , [83] , [84] ]. Hence, the employment of surrogate measures, such as the surrogate safety assessment method (SSAM) in conjunction with resources of The Swedish Traffic Conflict Technique, as a proactive and supplementary strategy for examining road safety from a more comprehensive standpoint rather than solely relying on collision-based analysis [ [85] , [86] , [87] ] has been recommended.…”

Section: Vissim Application Literature Reviewmentioning

confidence: 99%

Review of driving-behaviour simulation: VISSIM and artificial intelligence approach

Al-Msari,

Koting,

Ahmed

et al. 2024

Heliyon

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Event-based road safety assessment: A novel approach towards risk microsimulation in roundabouts

Cited by 23 publications

References 40 publications

Insights into Simulated Smart Mobility on Roundabouts: Achievements, Lessons Learned, and Steps Ahead

Insights into Simulated Smart Mobility on Roundabouts: Achievements, Lessons Learned, and Steps Ahead

Analysis of Pedestrians’ Road Crossing Behavior, in Social Groups

Review of driving-behaviour simulation: VISSIM and artificial intelligence approach

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