A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pavement Texture Measurement Study: Development of a Prototype Instrument for Real Time Measurement of Pavement Surface Texture from Aboard a Moving Vehicle at 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 degrees 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.
Pavement Texture Measurement Study: Development of a Prototype Instrument for Real Time Measurement of Pavement Surface Texture from Aboard a Moving Vehicle at 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 degrees 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.
Pavement Texture Measurement Study: Development of a Prototype Instrument for Real Time Measurement of Pavement Surface Texture from Aboard a Moving Vehicle at Highway Speeds
J. Hinch (author) / E. Howerter (author) / J. Zaiko (author)
1980
88 pages
Report
No indication
English
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