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The National Academies

NCHRP Synthesis 20-05/Topic 42-12 [Final (Synthesis)]

Practices to Manage Traffic Sign Retroreflectivity
[ NCHRP 20-05 (Synthesis of Information Related to Highway Practices) ]

  Project Data
Funds: $35,000
Staff Responsibility: Jon M. Williams
Effective Date: 7/1/2010
Fiscal Year: 2010

TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 431: Practices to Manage Traffic Sign Retroreflectivity includes examples of practices that illustrate how different types of transportation agencies might meet federal retroreflectivity requirements for traffic signs.


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