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EXPERIENCE OF MEAN SPEED RELATED TO SPEEDS OVER PARTS OF A TRIP

D Svenson

Open publisher page 5 citations

Abstract

Subjects were asked to judge the mean speed of a model engine which travelled part of a fixed distance at one steady speed and the remainder at a different steady speed. Mean speed was consistently overestimated when compared with judgements of constant speed over the same distance, suggesting that the faster speed was given too much weight when an impression of mean speed was formed. This, and results reported earlier by the author, indicate that when a driver is allowed to speed up for short periods of time he may overestimate the effect of these spurts on his mean speed and travel time. (A) /TRRL/

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What this paper is about

Subjects were asked to judge the mean speed of a model engine which travelled part of a fixed distance at one steady speed and the remainder at a different steady speed. Mean speed was consistently overestimated when compared with judgements of constant speed over the same distance, suggesting that the faster speed was given too much weight when an impression of mean speed was formed. This, and results reported earlier by the author, indicate that when a driver is allowed to speed up for short periods of time he may overestimate the effect of these spurts on his mean speed and travel time. (A) /TRRL/

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OpenAlex reports 5 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Subjects were asked to judge the mean speed of a model engine which travelled part of a fixed distance at one steady speed and the remainder at a different steady speed. Mean speed was consistently overestimated when compared with judgements of constant speed over the same distance, suggesting that the faster speed was given too much weight when an impression of mean speed was formed. This, and results reported earlier by the author, indicate that when a driver is allowed to speed up for short periods of time he may overestimate the effect of these spurts on his mean speed and travel time. (A) /TRRL/

Key concepts: Preferred walking speed, Traffic speed, Speed measurement, Simulation, Mathematics, Rotational speed, Statistics, Speed limit

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