b1b4170c_cal_Agencies___FHWA_HRT_07_042__Reported_Impacts
[Agency/Location] FHWA Impacts Report (5) [Comments] Impacts analyses based upon estimates of the number of signs based on a small sample. The sample was obtained from agencies who volunteered to provide the data leading to possible bias. The minimum levels considered were similar to the most recently proposed levels. Survey feedback indicated a widespread range of perceived impacts and highly variable costs. [Implications] This study added evidence that the impacts of the requirements would be minor. The range of perceived costs is great. Efforts may be needed to assist agencies in estimating more specifically their costs. [Reported Impacts] 
Nineteen agencies provided feedback on survey about sign management efforts in State & local agencies. They provided feedback on the expected impacts of the new requirements. Seven of these agencies provided data for a sample of their signs that was used to estimate overall impacts. Estimates of the impact led to the conclusion that the requirement would not have major impacts if implemented over a long period.
Maintaining Traffic Sign Retroreflectivity: Impacts on State and Local Agencies - FHWA-HRT-07-042