ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners.
As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
This study investigated the feasibility of using fiberglass reinforced plastic material as an alternative to aluminum for highway sign panels. An analysis of shop fabrication, installation procedures, field performance, reclamation, and cost was made for each material. It was concluded that the fiberglass reinforced-plastic material is an acceptable alternative to aluminum, and the Department should consider its use for highway sign panels on which to attach the reflectorized sheeting.
To ensure the safe and efficient movement of traffic through a highway network during nighttime conditions, traffic signs are either illuminated or ma...
This study was conducted to investigate ways of increasing the legibility of signs with high background brightness. Research was limited to silver, ye...
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