Predictors of older drivers’ involvement in rapid deceleration events

Chevalier, Anna; Coxon, Kristy; Chevalier, Aran John; Clarke, Elizabeth C.; Rogers, Kris; Brown, Julie; Boufous, Soufiane; Ivers, Rebecca; Keay, Lisa

doi:10.1016/j.aap.2016.10.010

Cited by 30 publications

(27 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Prior studies on vision and driving using naturalistic driving methods have not examined visual risk factors for crash and near-crash events. 11–20 Therefore, the purpose of this study was to examine the association between visual sensory and visual-cognitive function and rates of crash or near-crash involvement among older drivers using a naturalistic study design.…”

mentioning

confidence: 99%

Visual Sensory and Visual-Cognitive Function and Rate of Crash and Near-Crash Involvement Among Older Drivers Using Naturalistic Driving Data

Huisingh

Levitan

Irvin

et al. 2017

Invest. Ophthalmol. Vis. Sci.

View full text Add to dashboard Cite

PurposeAn innovative methodology using naturalistic driving data was used to examine the association between visual sensory and visual-cognitive function and rates of future crash or near-crash involvement among older drivers.MethodsThe Strategic Highway Research Program (SHRP2) Naturalistic Driving Study was used for this prospective analysis. The sample consisted of N = 659 drivers aged ≥70 years and study participation lasted 1 or 2 years for most participants. Distance and near visual acuity, contrast sensitivity, peripheral vision, visual processing speed, and visuospatial skills were assessed at baseline. Crash and near-crash involvement were based on video recordings and vehicle sensors. Poisson regression models were used to generate crude and adjusted rate ratios (RRs) and 95% confidence intervals, while accounting for person-miles of travel.ResultsAfter adjustment, severe impairment of the useful field of view (RR = 1.33) was associated with an increased rate of near-crash involvement. Crash, severe crash, and at-fault crash involvement were associated with impaired contrast sensitivity in the worse eye (RRs = 1.38, 1.54, and 1.44, respectively) and far peripheral field loss in both eyes (RRs = 1.74, 2.32, and 1.73, respectively).ConclusionsNaturalistic driving data suggest that contrast sensitivity in the worse eye and far peripheral field loss in both eyes elevate the rates of crash involvement, and impaired visual processing speed elevates rates of near-crash involvement among older drivers. Naturalistic driving data may ultimately be critical for understanding the relationship between vision and driving safety.

show abstract

mentioning

confidence: 99%

Visual Sensory and Visual-Cognitive Function and Rate of Crash and Near-Crash Involvement Among Older Drivers Using Naturalistic Driving Data

Huisingh

Levitan

Irvin

et al. 2017

Invest. Ophthalmol. Vis. Sci.

View full text Add to dashboard Cite

show abstract

“…As described in the related research manuscript [1], a RDE was defined as having at least one data point (approximately a 32nd of a second) at or above the deceleration threshold of 750 milli-g (Fig. 1).…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…This filter was confirmed appropriate for detecting known positive RDEs using accelerometer data captured during low-speed crash sled testing [14] and evaluation of known positive events in a pilot vehicle. In addition, as described in the related research manuscript [1], the Butterworth filter used to smooth the accelerometer data applied a non-linear phase filter causing differential delay across the frequency spectrum. While we are not aware that this affected the identification of RDEs, an improved methodology in future studies to avoid this would be to apply a linear phase FIR filter for offline processing.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…As described in the related research manuscript [1], while our device did not have an electronic inclinator with a level coordinate system, this would have been useful to measure tilt within the devices, to ensure the device was mounted flat and facing precisely the correct directions. Inclinator measurements could be used to incrementally adjust the effect of the z-axis out of the x and y readings.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Naturalistic rapid deceleration data: Drivers aged 75 years and older

Chevalier

Chevalier²,

Clarke

et al. 2016

Data in Brief

View full text Add to dashboard Cite

The data presented in this article are related to the research manuscript “Predictors of older drivers’ involvement in rapid deceleration events”, which investigates potential predictors of older drivers’ involvement in rapid deceleration events including measures of vision, cognitive function and driving confidence (A. Chevalier et al., 2016) [1]. In naturalistic driving studies such as this, when sample size is not large enough to allow crashes to be used to investigate driver safety, rapid deceleration events may be used as a surrogate safety measure. Naturalistic driving data were collected for up to 52 weeks from 182 volunteer drivers aged 75–94 years (median 80 years, 52% male) living in the suburban outskirts of Sydney. Driving data were collected using an in-vehicle monitoring device. Accelerometer data were recorded 32 times per second and Global Positioning System (GPS) data each second. To measure rapid deceleration behavior, rapid deceleration events (RDEs) were defined as having at least one data point at or above the deceleration threshold of 750 milli-g (7.35 m/s2). All events were constrained to a maximum 5 s duration. The dataset provided with this article contains 473 events, with a row per RDE. This article also contains information about data processing, treatment and quality control. The methods and data presented here may assist with planning and analysis of future studies into rapid deceleration behaviour using in-vehicle monitoring.

show abstract

“…The literature on naturalistic driving research specifically focused on older drivers is, however, small and is summarized here. Older adults who experience a decline in contrast sensitivity over 12 months are more likely to be involved in rapid deceleration events while driving [ 16 ]. Visual function in older drivers was found to be unrelated to involvement in lane changing errors [ 17 ] but narrowing of the visual attentional field was associated with a higher risk of failing to stop at red lights [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

The Alabama VIP older driver study rationale and design: examining the relationship between vision impairment and driving using naturalistic driving techniques

et al. 2018

View full text Add to dashboard Cite

BackgroundOlder drivers aged ≥70 years old have among the highest rates of motor vehicle collisions (MVC) compared to other age groups. Driving is a highly visual task, and older adults have a high prevalence of vision impairment compared to other ages. Most studies addressing visual risk factors for MVCs by older drivers utilize vehicle accident reports as the primary outcome, an approach with several methodological limitations. Naturalistic driving research methods overcome these challenges and involve installing a high-tech, unobtrusive data acquisition system (DAS) in an older driver’s own vehicle. The DAS continuously records multi-channel video of driver and roadway, sensor-based kinematics, GPS location, and presence of nearby objects in front of the vehicle, providing an objective measure of driving exposure. In this naturalistic driving study, the purpose is to examine the relationship between vision and crashes and near-crashes, lane-keeping, turning at intersections, driving performance during secondary tasks demands, and the role of front-seat passengers. An additional aim is to compare results of the on-road driving evaluation by a certified driving rehabilitation specialist to objective indicators of driving performance derived from the naturalistic data.MethodsDrivers ≥70 years old are recruited from ophthalmology clinics and a previous population-based study of older drivers, with the goal of recruiting persons with wide ranging visual function. Target samples size is 195 drivers. At a baseline visit, the DAS is installed in the participant’s vehicle and a battery of health and functional assessments are administered to the driver including visual-sensory and visual-cognitive tests. The DAS remains installed in the vehicle for six months while the participant goes about his/her normal driving with no imposed study restrictions. After six months, the driver returns for DAS de-installation, repeat vision testing, and an on-road driving evaluation by a certified driving rehabilitation specialist (CDRS). The data streams recorded by the DAS are uploaded to the data coordinating center for analysis.DiscussionThe Alabama VIP Older Driver Study is the first naturalistic older driver study specifically focused on the enrollment of drivers with vision impairment in order to study the relationship between visual dysfunction and driver safety and performance.

show abstract

Predictors of older drivers’ involvement in rapid deceleration events

Cited by 30 publications

References 51 publications

Visual Sensory and Visual-Cognitive Function and Rate of Crash and Near-Crash Involvement Among Older Drivers Using Naturalistic Driving Data

Visual Sensory and Visual-Cognitive Function and Rate of Crash and Near-Crash Involvement Among Older Drivers Using Naturalistic Driving Data

Naturalistic rapid deceleration data: Drivers aged 75 years and older

The Alabama VIP older driver study rationale and design: examining the relationship between vision impairment and driving using naturalistic driving techniques

Contact Info

Product

Resources

About