Legibility of Microprismatic Sheeting and Clearview Alphabet: Summary Report

This research project was conducted to determine the legibility of the Clearview alphabet on freeway guide signs constructed with microprismatic retrorefl ective sheeting. One product was required for this project: research results to be used by the Traffic Operations Division to revise current policy for text on freeway guide signs. The research results were submitted as an inclusion in Research Report 4049-1. The Clearview alphabet is currently displayed on freeway guide signs on a limited basis for evaluation purposes. The Traffic Operations Division is also in the process of developing a policy with the intention of implementing the Clearview alphabet for statewide use.