Evaluation of Overhead Sign Background Materials and Mercury Vapor Sign Lighting Fixtures

Details

• Creators:
  Jones, H. Dexter ; Raska, Joseph G.
• Corporate Contributors:
  Texas State Department of Highways and Public Transportation ; Houston Urban Office and Materials and Tests Division
• Subject/TRT Terms:
  • Alternatives analysis
  • Coatings
  • Color
  • Durability
  • Legibility
  • Lighting
  • Mercury
  • Mercury vapor lamps
  • Retaining walls
  • Evaluation
  More +
• Publication/ Report Number:
  222-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Corporate Publisher:
  Texas State Department of Highways and Public Transportation
• Abstract:
  Coating materials based on thermal setting polyester, thermal setting polyvinylidene fluoride, and air dry polyvinylidene fluoride have been found to be satisfactory coating materials for Overhead Guide Signs. The above three coatings also show excellent promise as materials for refurbishing deteriorated porcelain-enameled aluminum Overhead Guide Signs. Coatings based on polyurethane, vinyl toluene/acrylate copolymers, acrylic and alkyd do not produce overhead guide sign backgrounds of sufficient durability and color retention to warrant their use. Overhead Guide Signs can be illuminated to sufficient target value and uniformity with certain 100-watt mercury vapor lighting units. Most 175- and 250-watt mercury vapor lighting units present legibility washout problems, in particular the 250-watt units.
• Format:
  PDF
• Funding:
  1-18-75-222
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/84830/dot_84830_DS1.pdf
• File Type:
  [PDF - 56.08 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:a29914d7b38a15fd4285bab00a6f9afc5d410eacf94891f52f60661c04a3219cc00ae7697b9f7185c46fa22c0bf690ca58e51569ed2310273bcec77fbc58f05f