Changeable Message Sign Visibility

Details

• Creators:
  Garvey, Philip M. ; Mace, Douglas J.
• Corporate Creators:
  The Last Resources, Inc.
• Contributors:
  Simmons, Carole
• Corporate Contributors:
  United States. Federal Highway Administration. Office of Safety and Traffic Operations R&D
• Subject/TRT Terms:
  • Color
  • Contrast
  • Field studies
  • Guidelines
  • Laboratory tests
  • Legibility
  • Traffic signs
  • Variable message signs
  • Visibility
• Publication/ Report Number:
  FHWA-RD-94-077
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration
• Abstract:
  The object of this contract was to identify problems with the visibility of changeable message signs (CMSs), particularly for older drivers, and to develop design guidelines and operational recommendations to ensure adequate conspicuity and legibility of in-service CMSs. This project was divided into three main sections: a field survey of in-use CMSs, a series of laboratory experiments and static field studies, and a partially controlled dynamic field study. The research was designed to optimize CMS components, including the character variables (font, width-to-height ratio, color, and contrast orientation) and the message variables (inter-letter, inter-word, and inter-line spacing).
• Format:
  PDF
• Funding:
  DTFH61-91-C-00042
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/68162/dot_68162_DS1.pdf
• File Type:
  [PDF - 2.92 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:aec3c1f2b3dbf9d1b740a3b5de6af78678855ca3501c9432184160eb78b0fb79ecfeaae3b5b0a6d1dd7fad1df5435a80aaeadab728e0293797ec4b5d721a1adb