MATERIALS FOR TRAFFIC CONTROL SIGNS

THE MOST POPULAR SIGN MATERIAL USED TODAY IS THE ECONOMICAL AND DURABLE FLAT ALUMINUM ALLOY SHEET. HIGH DENSITY PLYWOOD GENERALLY IS USED FOR LONG SIGNS NEEDING THE RIGIDITY IT OFFERS. LENS REFLECTIVE SHEETING IS THE MOST WIDELY USED MATERIAL FOR REFLECTIVE SIGN FACES--NON- REFLECTIVE SIGNS HAVE PAINTED, VINYL FILMS OR PORCELAIN BACKGROUNDS. COLORS OF SIGNS HAVE BEEN ESTABLISHED ACCORDING TO NATIONAL STANDARDS. INTERNALLY AND EXTERNALLY ILLUMINATED SIGNS ARE USED ON MANY INTERSTATE SYSTEMS AND OTHER MAJOR HIGHWAYS. NEW MATERIALS BEING EXPLORED INCLUDE TRAFFIC SIGNS OF PLASTIC. IT PROVES DURABLE AND VANDAL RESISTENT, ELIMINATES THE REQUIREMENT OF OTHER MATERIAL ITSELF AND HAS COLOR IMPREGNATED IN THE MATERIAL ITSELF. FOR LARGE SIGNS, A STRONG, LIGHTWEIGHT, LAMINATED HONEYCOMB PANELING IS EXPLORED. VERY HIGH INTENSITY REFLECTIVE SHEETING IS NOW AVAILABLE FOR SIGN FACES. FUTURE INNOVATIONS INCLUDE: ELECTRIC AND ELECTRONIC DEVICES; A NUCLEAR POWERED INTERNALLY ILLUMINATED SIGN REQUIRING NO EXTERNAL ELETRICAL CONNECTIONS; MANUAL, AUTOMATIC OR COMPUTER CONTROLLED VARIABLE MESSAGE SIGNS; HOLO SIGNS--THE PROJECTION OF A HOLOGRAM OVER THE ROADWAY FROM A PROJECTOR WHEREVER A SIGN WOULD BE PHYSICALLY IMPOSSIBLE TO MOUNT.

• Authors:
  • Musick, J V
• Conference:
  • Ohio Highway Engineering Conference Proceedings
• Publication Date: 1971-4

Media Info

• Pagination: p. 270-3

Subject/Index Terms

• TRT Terms: Design; Innovation; Luminous materials; Materials; Reflective signs; Signs; Traffic signs
• Old TRIS Terms: Future concepts; Luminous sign; Traffic sign design
• Subject Areas: Design; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217201
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 28 1972 12:00AM