PAVEMENT TEXTURE MEASUREMENT STUDY-DEVELOPMENT OF A PROTOTYPE INSTRUMENT FOR REAL TIME MEASUREMENT OF PAVEMENT SURFACE TEXTURE FROM ABOARD A VEHICLE MOVING A HIGHWAY SPEEDS

Work performed during this project involved the detailed design, development and evaluation of a Pavement Texture Measurement System (PTMS) for real time measurement of pavement texture from onboard a vehicle traveling at highway speeds. The PTMS consists of a stroboscopic projector which emits an intense, short duration slit of light vertically downward onto the pavement surface to create an illuminated profile of the surface texture. The illuminated profile is then detected by the photo-sensitive surface of the vidicon camera which views the pavement surface at a 45 deg angle. The electronic processor digitizes the video image of the profile and records the resulting data on computer- compatible digital magnetic tape. The PTMS is designed to measure samples of pavement surface texture 2.5 inches long with a resolution and accuracy of approximately 0.008 inch at vehicle speeds up to 60 mph. The PTMS will collect samples of the pavement texture at operator selectable rates from one to 10Hz in either a continuous or burst mode while providing identification of the data. (FHWA)

• Supplemental Notes:
  • Work performed in cooperation with DOT, FHWA.
• Corporate Authors:

  ENSCO, Incorporated

  Transportation Group, 2560 Huntington Avenue
  Alexandria, VA  United States  22303

  Maryland Department of Transportation

  Division of Materials and Research, 2323 West Joppa Road
  Brooklandville, MD  United States  21022
• Authors:
  • Hinch, J
  • Howerter, E
  • Zaiko, J
• Publication Date: 1980-2

Media Info

• Pagination: 77 p.

Subject/Index Terms

• TRT Terms: Digitized photography; Measuring instruments; Pavements; Real time control; Surface course (Pavements); Texture
• Old TRIS Terms: Real-time systems; Stroboscopes
• Subject Areas: Highways; Pavements; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00325371
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: FHWA/MD-80/07 Final Rpt., FCP 41H3-102
• Contract Numbers: AW-080-111-046
• Files: TRIS, USDOT, STATEDOT
• Created Date: Apr 15 1981 12:00AM