ILLUMINATED SIGNS GUIDE TRAFFIC IN TUNNELS

A DRIVER REACTION STUDY IS REPORTED ON THE NEW OVERHEAD ILLUMINATED TRAFFIC SIGN DESIGNED TO GUIDE TRAFFIC IN THE TWELTH STREET UNDERPASS IN WASHINGTON- DESTINED TO BE PART OF THE INTERSTATE HIGHWAY SYSTEM. THIS ILLUMINATED ACRYLIC PLASTIC SIGN IS PLACED HORIZONTAL AGAINST THE TUNNEL CEILING AND MARKED WITH ELONGATED LETTERS SIMILAR TO ROADWAY PAVEMENT MARKINGS. IT IS EASIER AND MORE RAPIDLY READ ALMOST ONE HUNDRED PERCENT OF THE TIME BY ONE HUNDRED PERCENT OF THE DRIVERS TESTED.

• Supplemental Notes:
  • Vol 3, No 5, PP 7 & 25, 3 PHOT
• Publication Date: 1967-9

Media Info

• Serial:
  • IMSA Signal Magazine
  • Publisher: International Municipal Signal Association

Subject/Index Terms

• TRT Terms: Acrylic resins; Drivers; Illuminated traffic signs; Overhead traffic signs; Reaction time; Tunnels
• Identifier Terms: Interstate Highway System
• Uncontrolled Terms: Driver reaction
• Subject Areas: Bridges and other structures; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225166
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 25 1971 12:00AM