Published in 1975
The research reported here was undertaken to determine the feasibility of using raised pavement markers on interstate off-ramps in such a configuration that the driver will be alerted as a result of viewing an unexpected phenomenon. The results of this preliminary investigation show that the raised pavement marking system, consisting of a pattern of 45 markers, was effective in alerting drivers and would cause a wrong-way driver to realize his mistake accordingly. Based on the results of this initial phase, it is recommended that the study be expanded by permanently placing raised markers at two or three interchange off-ramps for further study. It is anticipated that this recommendation will be implemented in the near future.
Last updated: February 5, 2024