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Alternative Title:Research project title: Photometric requirements for arrow panels and portable changeable message signs
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OCLC Number:751473074
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Edition:Research report; Sept. 2000-Aug. 2001.
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NTL Classification:NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices ; NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Flow ; NTL-SAFETY AND SECURITY-Highway Safety ;
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Abstract:This project reviewed the performance of pchangeable message signs (PCMSs) and developed photometric standards to establish performance requirements. In addition, researchers developed photometric test methods and recommended them for use in evaluating the performance of PCMSs. This report includes a review of the literature and provides documentation for the standards and procedures recommended.
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