Determining the drivers' acceptance of EFTCD in highway work zones

Area of Science:

• Transportation Engineering
• Traffic Safety Research
• Human Factors in Driving

Background:

• Highway work zones present significant traffic safety challenges, particularly in temporary one-lane, two-way configurations.
• Inattentive driving contributes to rear-end crashes in work zones, necessitating advanced safety measures.
• Existing traffic control devices may not fully address the risks associated with reduced speed zones.

Purpose of the Study:

• To evaluate the effectiveness of the proposed Emergency Flasher Traffic Control Device (EFTCD) in mitigating traffic safety issues.
• To measure the impact of EFTCD on vehicle speeds upstream of highway work zones.
• To assess driver acceptance and opinions regarding the implementation of EFTCD.

Main Methods:

• Field experiments were conducted in two highway work zones to measure vehicle speeds.
• Driver opinions and acceptance of the EFTCD were gathered through a survey method.
• Comparative analysis of vehicle speeds with and without the EFTCD was performed.

Main Results:

• The EFTCD demonstrated a significant reduction in mean vehicle speeds in the upstream areas of the work zones.
• Survey results indicated that 60% of drivers perceived the EFTCD as a signal for speed reduction.
• A high acceptance rate was observed, with 82% of drivers recommending EFTCD implementation.

Conclusions:

• The EFTCD is an effective tool for reducing vehicle speeds in highway work zones, thereby mitigating crash severity.
• Driver feedback strongly supports the adoption of EFTCD as a valuable addition to existing traffic control measures.
• Scientific evidence supports the implementation of EFTCD to enhance safety and prevent rear-end collisions in work zones.