Driver Turn Signal Use under Cognitive Demand across Age Groups

A field study by Birsen Donmez of the University of Toronto examined turn signal use during highway lane changes. The data likely contains observations across three driver age groups (20-29, 40-49, and 60-69) under varying levels of secondary cognitive demand. Secondary cognitive demand was found to decrease the likelihood of turn signal use and delay signal onset and turnoff.

Use Cases

• Modeling the probability of turn signal use based on cognitive demand level mentioned in the description
• Analyzing the timing of signal onset and turnoff relative to secondary task load described in the study
• Comparing driving task performance across the three specified age groups (20-29, 40-49, 60-69)
• Investigating the relationship between cognitive resource competition and neglect of operational tasks as suggested by the results

Strengths

• Data originates from a field study conducted under actual highway conditions
• Study design includes three distinct age groups (20-29, 40-49, and 60-69)
• Analysis examines multiple dependent variables: likelihood of use, signal onset delay, and signal turnoff delay

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• Last update date is unknown; freshness unverified

Provenance

Source

University of Toronto

Collection Method

Field study data collected during highway lane changes