SAVING RUNWAYS

A thermal infrared scanner (heat sensitive rather than light sensitive) has been used to map underground water routes, in an effort to prevent cracks and potholes on an air-base runway in an area with very cold weather conditions. The scanner produces black-and-white images of the area being scanned, each shade indicating the amount of heat given off by a particular object. Each shade is then color-coded to more sharply define heat differences between objects. Identification is possible through contrast between hot and cold. The thermal scanner images are run through a computer complex called the Digital Image Processing Complex for analysis. Photos from an aerial camera were subject to Special Color Analysis Techniques (SCAT) which reveals the most subtle indications of runway damage.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Ryan, B
• Publication Date: 1975-8

Media Info

• Features: Photos;
• Pagination: 2 p.
• Serial:
  • Civil Engineering
  • Volume: 45
  • Issue Number: 8
  • Publisher: American Society of Civil Engineers
  • ISSN: 0885-7024
  • Serial URL: http://www.pubs.asce.org/ceonline/newce/html

Subject/Index Terms

• TRT Terms: Aerial photography; Airport runways; Color photography; Digital computers; Frost susceptibility; Groundwater; Imagery; Infrared analysis; Mapping; Pavement cracking; Scanners; Thermal analysis
• Uncontrolled Terms: Digital techniques
• Old TRIS Terms: Images; Scanning
• Subject Areas: Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 00127956
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 10 1976 12:00AM