An instrument for the precise measurement of vehicle speed.

Author(s)
Keith, R.J.
Year
Abstract

An experimental instrument is described, similar to the conventional type, but instead of an interrupted light team it applies laser beams. A helium-neon gas laser is used of 1 m w power and 1-16 inch diameter. The equipment is placed upon theodolytes. An accuracy of 0.2 per cent is obtained over a 5 ft. baseline.

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Publication

Library number
A 9391 (In: A 9354 S [electronic version only]) IRRD 51971
Source

In: Proceedings of the Fourth Conference of the Australian Road Research Board (ARRB), Melbourne, 1968, Volume 4, Part 1, p. 785-90; Paper no. 432

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.