Increasing Turn Signal Use by Drivers Exiting a University Parking Garage

Abstract

The present study attempted to further existing literature on increasing safe driving practices through visual prompts by targeting turn signal use at a 4-way intersection. Drivers exiting a university parking garage were presented with a visual prompt (“Please Signal and Drive Safely”) and then observed for turn signal use while entering an intersection a short time later. In addition, the effectiveness of posted signs (passive prompting) was compared to signs held by a student volunteer (mediated prompting) using a reversal (ABACA) design. The interventions increased turn signal use from a baseline of 68% to 89% and 85% for passive prompts and mediated prompts, respectively.

Key Words:

• Prompting
• behavioral safety
• turn signals
• flash-for-life