Using SHRP2 NDS data to examine infrastructure and other factors contributing to older driver crashes during left turns at signalized intersections

Zafian, Tracy; Ryan, Alyssa; Agrawal, Ravi; Samuel, Siby; Knodler, Michael A.

doi:10.1016/j.aap.2021.106141

Cited by 13 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, enhanced roadway design that considers older people's characteristics and speed limit enforcement will improve older drivers' safety. The finding will provide insights to help bridge the gap identified in previous studies (e.g., [41]) of lacking definitive findings or recommendations for infrastructure changes to increase the safety of older drivers.…”

Section: Discussionmentioning

confidence: 79%

Older Driver Safety: A Renewed Perspective in a Survey Study in Illinois, U.S.

Pokhrel¹,

2021

Safety

View full text Add to dashboard Cite

Older adults (aged 65 or older) are at higher risk of involvement in motor vehicle crashes. Many studies have been conducted on older road users’ safety, but how older people’s driving behavior and demographic characteristics, and warnings of side effects of prescription medication, are associated with their crash risk has not been fully investigated. Aimed to address this knowledge gap, a mail survey of older drivers in Illinois, U.S. was conducted. Information on respondents’ driving behaviors, demographic characteristics, physical conditions, medication use, crash experience, etc. was gathered. Response distributions, odds ratios, and logistic regression models were employed to analyze the survey data. The results showed that most respondents kept a high level of mobility despite driving difficulty and medication use. Older drivers’ crash risk is mainly affected by external factors (driving exposure, alcohol consumption, and medication use) rather than their demographic characteristics and driving difficulty. Warnings from physicians on the side effects of prescription drugs had no significant effects on older drivers’ crash risk. Given the importance of mobility to older adults, the focus needs to be placed on providing a safe roadway system and safe driving advice for older drivers, particularly those who are on medication.

show abstract

Section: Discussionmentioning

confidence: 79%

Older Driver Safety: A Renewed Perspective in a Survey Study in Illinois, U.S.

Pokhrel¹,

2021

Safety

View full text Add to dashboard Cite

show abstract

“…A previous naturalistic study also found that older drivers experienced difficulty when making turns across oncoming traffic. 36 Turning across oncoming traffic is one of the more difficult situations drivers are often faced with, requiring good gap judgement, ability to assess the speed of oncoming traffic and quick reaction time. 37 These skills often diminish with age and therefore older drivers may be more likely to avoid these situations altogether.…”

Section: Discussionmentioning

confidence: 99%

A Longitudinal Study Examining Self-Regulation Practices in Older Drivers with and without Suspected Mild Cognitive Impairment

Feng¹,

Meuleners²,

Stevenson³

et al. 2021

CIA

View full text Add to dashboard Cite

Purpose Mild cognitive impairment can impact driving performance and self-regulation practices. However, there is little evidence on how cognitive impairment may impact these self-regulation practices over a period of time. Therefore, the aim of this study was to examine changes in the number and type of situations in which older drivers with and without suspected mild cognitive impairment (MCI) self-regulate their driving over a one-year period, after accounting for relevant confounders. Participants and Methods A longitudinal cohort study involving older drivers (65+ years) from metropolitan Western Australia was interviewed by a telephone interview at baseline and one-year follow-up. The Telephone Cognitive Screen (T-CogS) was also administered to determine changes in their cognitive status. The outcome of interest was the number and type of situations older drivers self-regulated their driving. Results A total of 670 drivers were interviewed at baseline (suspected MCI: n = 227; no cognitive impairment: n = 443) and one-year follow-up (suspected MCI: n = 251; no cognitive impairment: n = 419), which provided 1340 observations. Drivers with suspected MCI increased the number of driving situations in which they self-regulated by 13% over a period of one-year compared with drivers without cognitive impairment (IRR = 1.13, 95% CI = 1.02–1.27, p = 0.025). Specifically, drivers with suspected MCI had 60% increased odds of self-regulating when “making turns across oncoming traffic” compared with drivers without cognitive impairment (unadjusted OR = 1.60, 95% CI = 1.02–2.53, p = 0.041). Other significant factors included being female (IRR = 1.87, 95% = 1.52–2.32, p = 0.001), aged 75+ years (IRR = 1.33, 95% CI = 1.10–1.60, p = 0.003), higher number of comorbidities (1–3 comorbidities: IRR = 1.26, 95% CI = 1.01–1.58, p = 0.040; 4+ comorbidities: IRR = 1.39, 95% CI = 1.08–1.78, p = 0.011), “decreased driving confidence” (IRR = 1.32, 95% CI = 1.10–1.58, p-value = 0.003) and “preference of having someone else drive” (IRR = 1.38, 95% CI = 1.12–1.70, p = 0.003). Having one or more traffic infringements was also associated with a decrease in the number of self-regulated driving situations (IRR = 0.80, 95% CI = 0.67–0.95, p = 0.011). Conclusion Over a one-year period, drivers with suspected MCI increased the number of situations in which they self-regulated their driving compared with drivers without cognitive impairment, particularly when “making turns across oncoming traffic”. Future studies should examine whether this increase in the types and number of self-regulated driving situations is enough to compensate for declines in cognition.

show abstract

“…Essa et al [49] highlighted the temporal aspect of intersection safety, revealing that the highest frequency of conflicts occurred at the start of the green time, while the greatest severity was observed at the beginning of the red time. Furthermore, Zafian et al [50] emphasized the importance of considering alternative data sources and collection methods to address the literature gap in improving safety for older drivers. These findings collectively contribute to a deeper understanding of the factors influencing crash risk at intersections and provide insights for developing effective safety strategies.…”

Section: Research Outcomesmentioning

confidence: 99%

Safety in Traffic Management Systems: A Comprehensive Survey

Dash

et al. 2023

Designs

View full text Add to dashboard Cite

Traffic management systems play a vital role in ensuring safe and efficient transportation on roads. However, the use of advanced technologies in traffic management systems has introduced new safety challenges. Therefore, it is important to ensure the safety of these systems to prevent accidents and minimize their impact on road users. In this survey, we provide a comprehensive review of the literature on safety in traffic management systems. Specifically, we discuss the different safety issues that arise in traffic management systems, the current state of research on safety in these systems, and the techniques and methods proposed to ensure the safety of these systems. We also identify the limitations of the existing research and suggest future research directions.

show abstract

Using SHRP2 NDS data to examine infrastructure and other factors contributing to older driver crashes during left turns at signalized intersections

Cited by 13 publications

References 22 publications

Older Driver Safety: A Renewed Perspective in a Survey Study in Illinois, U.S.

Older Driver Safety: A Renewed Perspective in a Survey Study in Illinois, U.S.

A Longitudinal Study Examining Self-Regulation Practices in Older Drivers with and without Suspected Mild Cognitive Impairment

Safety in Traffic Management Systems: A Comprehensive Survey

Contact Info

Product

Resources

About