Nathan safety vest

The researchers developed a test schedule for evaluating the reflective safety of the two safety vests. They further determined that testing would take place during the day, during the night, and at sunset. In addition, the nighttime testing was to include the use of headlights on both high beam and low beam.

The research team also decided to select a variety of settings for testing. One setting was on a major city street with four lanes of traffic. Another was on a suburban street with two lanes of traffic. Yet another selected setting was outside a shopping center and the final setting was at a large green vegetation site. During the night at these four settings, testing took place before a street light, under a street light, and after a street light.

Special daytime situations were also used in the study. For example, the safety vests were tested while a person was within the shadows of building and trees. The person wearing the safety vest was also approached from the front and from behind while both remaining stationary and while moving.

To conduct the safety vest testing, a digital camera was used to film the scene. The camera was secured to the front passenger seat and it was set up to simulate both eye sensitivity and movement. The vehicle being used in the testing was properly serviced and the researchers ensured its headlights were at the proper height. In addition, a radar was used to determine the speed of the test vehicle.

To begin the test, the vehicle began at a distance of 1 kilometer from where the police officer was standing at the side of the road. The video camera was set to begin recording before the test run began and to stop recording once the vehicle passed the police officer.

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