Abstract
The objective of this study was to investigate the relative daytime and nighttime visibility of three crosswalk marking patterns (transverse lines, continental markings, and bar pairs). In general, this study collected information on the distance from the crosswalk when the participant verbally indicated its presence. The 78 participants were about evenly divided between male and female groups and between younger (<55 years) and older (≥55 years) groups. The study was conducted with instrumented vehicles on an open road route on the Texas A&M University campus during November 2009. Data were collected during two periods: daytime (sunny and clear or partly cloudy) and nighttime (street lighting on). Markings were installed for this study at nine midblock locations. The detection distances for bar pairs and continental markings were similar, and they were statistically longer than the detection distances for the transverse markings, both day and night.
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