Analysis of Work Zone Crash Characteristics and Countermeasures

Ullman, G L; Pratt, Michael P.; Geedipally, Srinivas Reddy; Dadashova, Bahar; Porter, Richard J.; Medina, Juan; Fontaine, Michael D.

doi:10.17226/25006

Cited by 6 publications

(5 citation statements)

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“…Results are consistent with other studies which have found following closely [4] [6] [8] [9] as a contributor to rear-end crashes. Additionally, studies have indicated that glances away from the roadway task and cell phone use increase crash risk in general [13] [14] [25].…”

Section: Discussionsupporting

confidence: 93%

Evaluation of the Impact of Driver Behavior on Back of Queues Events in Work Zones Using the SHRP2 Naturalistic Driving Study Data

Hallmark,

Basulto-Elias,

Oneyear

et al. 2024

JTTs

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The SHRP2 Naturalistic Driving Study was used to evaluate the impact of various work zone and driver characteristics on back of queue safety critical events (crash, near-crash, or conflicts) The model included 43 SCE and 209 "normal" events which were used as controls. The traces included representing 209 unique drivers. A Mixed-Effects Logistic Regression model was developed with probability of a SCE as the response variable and driver and work zone characteristics as predictor variables. The final model indicated glances over 1 second away from the driving task and following closely increased risk of an SCE by 3.8 times and 2.9 times, respectively. Average speed was negatively correlated to crash risk. This is counterintuitive since in most cases, it is expected that higher speeds are related to back of queue crashes. However, most queues form under congested conditions. As a result, vehicles encountering a back of queue would be more likely to be traveling at lower speeds.

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Section: Discussionsupporting

confidence: 93%

Evaluation of the Impact of Driver Behavior on Back of Queues Events in Work Zones Using the SHRP2 Naturalistic Driving Study Data

Hallmark,

Basulto-Elias,

Oneyear

et al. 2024

JTTs

View full text Add to dashboard Cite

show abstract

“…NCHRP Report 869 (NCHRP Project 17-61) studied factors affecting the safety of traffic approaching and passing through work zones (2). Based on the analyses undertaken, work-zone characteristics such as signing and warning layouts, ingress and egress of workspace access, visibility issues, barricades and channelizing devices, and access-point designs have been found to affect work-zone crashes, necessitating new studies on work-zone safety.…”

Section: Literature Reviewmentioning

confidence: 99%

“…In 2019, there were over 25,000 work-zone collisions reported in the state of Texas, averaging one every 20 min. Researchers cite several aspects that contribute to the safety of vehicles passing through work zones (2). Work-zone equipment, traffic control devices, and workers are typically positioned near travel lanes, which increases the risk of vehicles colliding with equipment or striking roadway personnel.…”

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confidence: 99%

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Diagnosis of Encroachment-Related Work-Zone Crashes by Applying Pattern Recognition

Das

Tabesh

Dadashova

et al. 2023

Transportation Research Record: Journal of the Transportation R

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Work-zone safety is one of the critical goals of transportation agencies. Vehicles are required to change travel paths and lanes over a short length of a road section at work zones. Distracted drivers, unable to see advanced warning signals and pavement markings delineating the work-zone travel paths, could increase the likelihood of a crash. Recent statistics showed that fatal collisions in work zones had increased by 46% in 2019 compared with 2011. The frequency of roadway departures at work zones, the higher risk of fatalities, and little insight into encroachment types at work zones underscored the need for a thorough study. This study aimed to examine the vehicle encroachment conditions associated with work-zone locations and focused on 4 years (2016 to 2019) of crash data from the Texas Department of Transportation by applying a unique data-mining method known as cluster correspondence analysis. This method identified four clusters in both “no-injury” and “fatal and injury” crash data. Major factors contributing to vehicle encroachment were identified. Three dominating clusters were median-related crashes on two-lane divided high-volume roadways; single-vehicle overturning collisions on two-way divided roadways with unprotected median; and overturning crashes on two-lane undivided roadways in controlled traffic. The findings of this study will be useful for safety engineers to contribute to reducing encroachment-related work-zone crashes.

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“…Other research has focused on crash reductions and decision tools. In a Texas research study, crash data was collected on the I-35 corridor for combined TPRS and end-of-queue warning systems (EOQWS) deployment for queued and non-queued conditions (11). In queued conditions, the following crash modification factors (CMFs) were reported: 0.40 (TPRS only) and 0.47 (EOQWS and TPRS used together).…”

Section: General Guidance For Temporary Rumble Stripsmentioning

confidence: 99%

Development of Policy Guidance for Temporary Rumble Strips

Brown

Edara

Sun

et al. 2023

Transportation Research Record: Journal of the Transportation R

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Temporary rumble strips are used by state departments of transportation (DOTs) to help reduce vehicle speeds in work zones and to alert drivers they are approaching a work zone. A research study was undertaken to develop policy guidance for the use of temporary rumble strips by DOTs. The research methodology included a review of existing literature, synthesis of DOT practices, and field observations of driver behavior and installation of temporary rumble strips. This paper presents the first known assessment of DOT practices for both long-term and short-term temporary rumble strips in the United States. Field observations noted minimal erratic driver behavior (1/8636) such as swerving to avoid the temporary rumble strips. A synthesis of 18 existing DOT practices found differences in levels of implementation and standards for temporary rumble strips among DOTs. Concerns noted by DOTs and installation personnel include the heavy weight of short-term temporary rumble strips, requirements for installation, worker exposure to traffic, potential for erratic driver behavior, and the need for maintenance of the temporary rumble strips. Suggested modifications to existing DOT practices were developed to address these concerns and potentially reduce cost, increase installation efficiency, enhance worker safety, and improve performance of temporary rumble strips.

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Analysis of Work Zone Crash Characteristics and Countermeasures

Cited by 6 publications

References 0 publications

Evaluation of the Impact of Driver Behavior on Back of Queues Events in Work Zones Using the SHRP2 Naturalistic Driving Study Data

Evaluation of the Impact of Driver Behavior on Back of Queues Events in Work Zones Using the SHRP2 Naturalistic Driving Study Data

Diagnosis of Encroachment-Related Work-Zone Crashes by Applying Pattern Recognition

Development of Policy Guidance for Temporary Rumble Strips

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