2009 journal article
Synthesis of sign deterioration rates across the United States
Journal of Transportation Engineering, 135(3), 94–103.
By: V. Immaneni, J. Hummer, W. Rasdorf, E. Harris & C. Yeom
2007 journal article
Field investigation of sign damage rates and inspector accuracy
Public Works Management & Policy, 11(4), 266–278.
By: V. Immaneni, W. Rasdorf, J. Hummer & C. Yeom
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