Effect of changing driving conditions on driver behavior towards design of a safe and efficient traffic system.

Aghazadeh, Fereydoun; Laura Hughes Ikuma,; Sherif Ishak,; Louisiana State University. Dept. of Civil and Environmental Engineering; Gulf Coast Center for Evacuation and Transportation Resiliency

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Effect of changing driving conditions on driver behavior towards design of a safe and efficient traffic system.

2013-12-01
By Aghazadeh, Fereydoun ; Laura Hughes Ikuma, ; Sherif Ishak,

[PDF-1.83 MB]

English

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Details:

Creators:

Aghazadeh, Fereydoun ; Laura Hughes Ikuma, ; Sherif Ishak,

Aghazadeh, Fereydoun ; Laura Hughes Ikuma, ; Sherif Ishak, Less -
Corporate Creators:

Louisiana State University. Dept. of Civil and Environmental Engineering ; Gulf Coast Center for Evacuation and Transportation Resiliency

Louisiana State University. Dept. of Civil and Environmental Engineering ; Gulf Coast Center for Evacuation and Transportation Resiliency Less -
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration ; Southwest Region University Transportation Center (U.S.)

United States. Dept. of Transportation. Research and Innovative Technology Administration ; Southwest Region University Transportation Center (U.S.) Less -
Subject/TRT Terms:

[+]

Behavior Braking Merging Area Merging Traffic Simulation Traffic Density Traffic Signs Workload Work Zone Traffic Control
Publication/ Report Number:

SWUTC/13/600451-00103-1
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Texas A&M Transportation Institute
Abstract:

This simulation-based study explores the effects of different work zone configurations, varying distances

between traffic signs, traffic density and individual differences on drivers’ behavior. Conventional Lane

Merge (CLM) and Joint Lane Merge (JLM) were modeled in a driving simulator and thirty participants

(seven female and 23 male students) navigated through the two configurations with two levels of traffic

density and in three different conditions: a) standard sign distance, b) 25% reduction, and c) 25% increase

in the distance between traffic signs in the advance warning zone. Information regarding travel time, speed,

braking force and location of merge was collected through the simulator. Self-reported measures of mental

demand, physical demand, temporal demand, performance, effort, frustration and total workload were

recorded from all participants by using the NASA TLX. The results show that, on average, driving through

the JLM took 18.8% longer than the CLM. Moreover, no significant difference in speed was found

between the two merge configurations. However, the percent maximum braking force was34% lower in the

JLM configuration. The comparison of two merge configurations with respect to the location of changing

lanes suggest that overall, the JLM configuration encourages drivers to remain in the closed lane longer.

The analysis of self-reported workload ratings shows that participants reported 15.3% lower total workload

and 18.8% higher performance when driving through the JLM. Moreover, mental demand, temporal

demand, effort and frustration were lower in JLM by 16.4%, 23.4%, 13.7% and 28%, respectively. In terms

of self-reported workload, the JLM is more conducive to driving. In conclusion, the JLM outperforms the

CLM.
Format:

PDF
Funding:

DTRT12-G-UTC06
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:8a39df6b7fc9871813146cfe31fd364a11bcb967e04435d28f2650507b70fc4d
Download URL:

https://rosap.ntl.bts.gov/view/dot/28228/dot_28228_DS1.pdf
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Effect of changing driving conditions on driver behavior towards design of a safe and efficient traffic system.

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