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- W803589648 abstract "During the summer of 1996 a comparison of three different friction testers was carried out in Denmark. The test also included measurements of macrotexture with a Danish laser equipment. The objective of the test was to evaluate and compare the different testing equipment with respect to their repeatability and correlation. Further, to analyze the influence of vehicle speed and slip speed on the measured friction, and to evaluate the PIARC model on the test results, including the influence of macrotexture. The test included 22 sections in West Zealand. The sections were selected to represent a high variation of friction values as a basis for the analysis. Most of the sections have a length of 200 m. Three devices used for measuring friction were used in this test: (1) Stradograf - owned by the Danish Road Directorate; (2) Griptester; and (3) ROAR - equipment produced by Norsemeter in Norway. Each of the 22 sections was measured twice by each equipment at three different vehicle speeds: 40, 60 and 80 km/h with fixed slip. Further each section was measured twice for each speed level with the ROAR equipment using variable slip. Before each section was tested for friction, the macrotexture was measured using laser equipment, and the volumetric sand patch method was performed on 5 spots for each section. To reduce the influence from variations in temperature, each section was measured with the 3 pieces of equipment within a time interval kept as short as possible. All test data are from the left wheel track." @default.
- W803589648 created "2016-06-24" @default.
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- W803589648 date "1997-01-01" @default.
- W803589648 modified "2023-09-27" @default.
- W803589648 title "FRICTION TEST. COMPARATIVE TESTING WITH 3 DIFFERENT EQUIPMENTS CARRIED OUT DURING THE SUMMER 1996" @default.
- W803589648 hasPublicationYear "1997" @default.
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