| contributor author | Venkata Pavan Immaneni | |
| contributor author | Joseph E. Hummer | |
| contributor author | William J. Rasdorf | |
| contributor author | Elizabeth A. Harris | |
| contributor author | Chunho Yeom | |
| date accessioned | 2017-05-08T21:05:12Z | |
| date available | 2017-05-08T21:05:12Z | |
| date copyright | March 2009 | |
| date issued | 2009 | |
| identifier other | %28asce%290733-947x%282009%29135%3A3%2894%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/38119 | |
| description abstract | In response to minimum retroreflectivity standards, transportation departments are implementing sign asset management strategies, which rely upon knowledge of how retroreflectivity decreases as signs weather and age. To provide this knowledge, the writers field measured over 1,000 in-service signs in scattered North Carolina Department of Transportation (NCDOT) divisions, collecting age and retroreflectivity data for white, yellow, red, and green signs and for ASTM sheeting Types I and III. Data from this study and data from five similar U.S. efforts were analyzed using regression to identify the best available deterioration rate estimates, finding that retroreflectivity minimums are usually reached eight to | |
| publisher | American Society of Civil Engineers | |
| title | Synthesis of Sign Deterioration Rates across the United States | |
| type | Journal Paper | |
| journal volume | 135 | |
| journal issue | 3 | |
| journal title | Journal of Transportation Engineering, Part A: Systems | |
| identifier doi | 10.1061/(ASCE)0733-947X(2009)135:3(94) | |
| tree | Journal of Transportation Engineering, Part A: Systems:;2009:;Volume ( 135 ):;issue: 003 | |
| contenttype | Fulltext | |
