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- W223480914 abstract "The knowledge of the actual operating speed of free vehicles all along a highway (the speed profile) is of a prime interest in safety studies. However, it is not easy to be obtained, for it needs, with traditional methods, a quite high number of travels with a dedicated equipped vehicle. Starting from the knowledge of the actual 85th operating speed profiles on some rural highways, obtained in such a way, the author evaluates in this paper the accuracy of an alternative method, combining in an elementary way few individual speed profiles and few spot speed measurements. An empirical estimation of the resulting error is given, for different numbers of continuous and spot speeds measurements. It appears that with four individual continuous speed profiles and four spot speed distributions, a quite reasonable accuracy may be expected. If such a method is less pertaining than spot speed measurements for studying given points of a road, and not very interesting to know the speed profile along only a single highway, it may be useful to get an idea of the actual speed behavior on each point all over a secondary rural network. But for this, it is very important to carry out the measurements very carefully." @default.
- W223480914 created "2016-06-24" @default.
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- W223480914 date "2005-10-01" @default.
- W223480914 modified "2023-09-24" @default.
- W223480914 title "The Accuracy of a Speed Profile Estimation Method Combining Continuous and Spot Speed Measurements" @default.
- W223480914 hasPublicationYear "2005" @default.
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