Radar-Measured Reaction Times of Unalerted Drivers to Brake Signals

This article concerns the responses of drivers to brake signals in actual traffic. The data were collected in a project investigating the potential benefits of high-mounted brake lights. The responses were obtained from unalerted drivers who at the time of the trial were following behind a test car and in front of a monitoring car. The test car (a compact or a full-size) was equipped on 69% of the trials with one or two supplemental brake...