STUDY AND DEVELOPMENT OF ADVANCED SURVEY SYSTEMS AND TECHNIQUES

The purpose of this study was to examine the feasibility of developing a relatively inexpensive technique by which aerial photography could be accomplished using retroreflectors as survey control points. Strobe lights mounted next to the aerial camera and synchronized to the shutter would produce the light that is reflected from the retroreflectors into the camera aperture producing target images on the aerial negative. It was determined that a strobe camera system could be used to obtain target images at 1500 feet flying heights using standard highway delineators as targets. The delineator targets are economical and satisfactory for higher altitude flights if the strobe light candlepower is increased.

• Corporate Authors:

  Ohio Department of Transportation

  25 South Front Street
  Columbus, OH  United States  43215

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Herd, L O
  • Laasi, A
• Publication Date: 1974-9

Media Info

• Features: Appendices; Figures; References;
• Pagination: 70 p.

Subject/Index Terms

• TRT Terms: Aerial photography; Aerial surveying; Cameras; Highway delineators; Highway design; Imagery; Lines of track; Location; Numerical analysis; Photogrammetry; Photographic materials; Photography; Reflectorized materials; Relocation (Facilities); Retroreflectors; Strobes; Surveying; Surveys
• Old TRIS Terms: Aerial surveys; Airborne cameras; Highway delineation; Images; Line relocation; Negatives /photographic/; Photogrammetric surveys; Stroboscopes
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00090026
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: OHIO-HWY-10-73 Final Rpt.
• Contract Numbers: 14818(0)
• Files: NTIS, TRIS, USDOT, STATEDOT
• Created Date: Apr 22 1975 12:00AM