Gent, S. J. (1995). Minimum retroreflectivity of traffic signs and pavement markings (Report No. HR-562). Iowa. Dept. of Transportation. https://rosap.ntl.bts.gov/view/dot/23944
Gent, Steve J.. Minimum retroreflectivity of traffic signs and pavement markings. Report no. HR-562. Iowa. Dept. of Transportation, 1995. https://rosap.ntl.bts.gov/view/dot/23944.
Gent, Steve J. Minimum retroreflectivity of traffic signs and pavement markings. Iowa. Dept. of Transportation, 1995, Report no. HR-562, ROSA P. https://rosap.ntl.bts.gov/view/dot/23944.
This final report contains two separate reports which describe the retroreflectivity
;
levels of various traffic signs and pavement markings on the lowa primary road
;
system. The data was collected in the falll/winter of 1994 and given to the
;
Federal Highway Administration in March of 1995. This information is currently
;
being combined with similar information from other jurisdictions across the
;
country for the purpose of determining the impact of mandated minimum
;
retroreflectivity levels.
Gent, S. J. (1995). Minimum retroreflectivity of traffic signs and pavement markings (Report No. HR-562). Iowa. Dept. of Transportation. https://rosap.ntl.bts.gov/view/dot/23944
Gent, Steve J.. Minimum retroreflectivity of traffic signs and pavement markings. Report no. HR-562. Iowa. Dept. of Transportation, 1995. https://rosap.ntl.bts.gov/view/dot/23944.
Gent, Steve J. Minimum retroreflectivity of traffic signs and pavement markings. Iowa. Dept. of Transportation, 1995, Report no. HR-562, ROSA P. https://rosap.ntl.bts.gov/view/dot/23944.
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.
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