Factors Influencing Level of Service for Motorized Vehicles at Signalized Intersection under Mixed Traffic Condition

Othayoth, Darshana; Rao, K. V. Krishna

doi:10.1007/s40890-017-0045-x

Cited by 7 publications

(2 citation statements)

References 3 publications

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“…Correlation analysis is a method to investigate the degree and direction of a relationship between two variables [32], and we conducted it to determine whether visual acuity level influenced driving behavior and performance measures, including variations of speed, braking force, and lateral placement during driving. e Kruskal-Wallis test is a rank-based nonparametric test that can be used to determine whether there is a statistically significant difference between continuous or ordinal dependent variables in two or more groups [33]. We used this test to determine whether the occurrence of traffic conflicts in each scenario differed significantly among the groups classified according to visual acuity level.…”

Section: Discussionmentioning

confidence: 99%

Driving Performance Evaluation Correlated to Age and Visual Acuities Based on VR Technologies

Hwang

Lee

2020

Journal of Advanced Transportation

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There is currently much debate regarding the effectiveness of the driver license system in South Korea, due to the numerous traffic crashes caused by drivers who are suspected of having insufficient physical and mental abilities. Through the present system, it is quite difficult to identify such drivers indirectly through physical tests, such as visual acuity tests, since the correlation of such results with driving performance remains unclear. The objective of this study was to investigate the relationship between driving performance and visual acuities for improving the South Korean driver license system. In this study, two investigations were conducted: static and dynamic visual acuity examinations and driving performance tests based on a virtual reality (VR) system. The driving performance was evaluated with a driving simulator, based on driving behaviors in different experimental scenarios, including daytime and nighttime driving on a rural highway, and unexpected incident situations. Here, we produce statistically significant evidence that reduced visual acuity impairs driving performance, and driving behaviors differ significantly among groups with different vision capabilities, especially dynamic vision. Visual acuities, typically dynamic visual acuity, greatly influenced driving behavior, as measured by the standard deviation of speeds and vehicle LPs, and this was especially notable in curved road segments in daytime experiment. These experimental results revealed that the driving performance of participants with impaired dynamic visual acuity was deficient and unsafe. This confirmed that dynamic visual acuity levels are significant determinants of driving behavior, and they well explain driver performance levels. These findings suggest that the South Korean driver license system should include a test of dynamic visual acuity to create better and safer driving.

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Section: Discussionmentioning

confidence: 99%

Driving Performance Evaluation Correlated to Age and Visual Acuities Based on VR Technologies

Hwang

Lee

2020

Journal of Advanced Transportation

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“…Similarly, Dhamaniya and Chandra [27] concluded in their study that crossing pedestrians significantly reduce the capacity of the highway on open-access multilane highways. During the literature review, it was observed that a limited number of studies attempted to obtain road users' perception, and significantly fewer studies were related to open-access multilane highway mobility and its influencing factors [8,28]. However, according to the highway capacity manual, it is important to obtain road users' perspectives to assess how well a transportation facility functions [5].…”

Section: Synthesis Of Past Literaturementioning

confidence: 99%

A Multidimensional Analysis of Factors Impacting Mobility of Open-Access Multilane Highways

et al. 2022

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Open-access multilane highways have a significant share in the highway network of Pakistan and other developing countries in Asia. These highways have high access density, design inconsistency, and other operational characteristics that differentiate them from partially controlled-access multilane highways. This study identified significant factors affecting the mobility of open-access highways based on road users’ perceptions as well as field observations. An interview-based questionnaire survey from local respondents and an in-service road survey formed the database for the present study. Questionnaire survey results showed that heavy traffic was the most critical mobility influencing factor on open-access multilane highways, followed by road width and condition, whereas the result of multilinear regression revealed that the most significant variable was access density, followed by the flow and pedestrian crossings. However, it was concluded that controlling access density, preventing pedestrian crossings, and improving pavement condition will improve the mobility of open-access multilane highways.

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Delay Modelling at Signalized Intersection Under Mixed Traffic Conditions

Akash,

Krishnamurthy

2024

Lecture Notes in Civil Engineering

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Factors Influencing Level of Service for Motorized Vehicles at Signalized Intersection under Mixed Traffic Condition

Cited by 7 publications

References 3 publications

Driving Performance Evaluation Correlated to Age and Visual Acuities Based on VR Technologies

Driving Performance Evaluation Correlated to Age and Visual Acuities Based on VR Technologies

A Multidimensional Analysis of Factors Impacting Mobility of Open-Access Multilane Highways

Delay Modelling at Signalized Intersection Under Mixed Traffic Conditions

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