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https://nap.nationalacademies.org/catalog/27432/critical-issues-in-transportation-for-2024-and-beyond

Validation of Speed Perception and Production in a Single Screen Simulator

Simulator speed validation was the study objective. Study methodology required 16 drivers between the ages of 24-30 to drive an actual desert route between two cities totaling 40 km, as well as in a simulator with approximately reproduced sparse scenery and exactly replicated geometry. The actual range of speed was 40 to 100 km/h. The actual road was driven first by half the drivers, while the simulator was driven first by the other half. The speedometer could not be seen by the drivers in each drive, and two tasks were on hand: speed estimation, in which drivers were instructed to accelerate or decelerate to a certain point before estimating speed, and speed production, in which drivers were told a predetermined speed should be achieved. Study results yielded very high correlations between simulated driving and actual driving. There was a nearly 1.0 (r = 0.997) between speed produced on the road and real speed, and a 0.86 correlation in the simulator. On the road, there was also a nearly 1.0 (r=0.997) correlation between real and estimated speed, and a nearly identical (r = 0.98) correlation in the simulator. There was a slightly lower estimated than true speed in both the simulator and the road, with a slightly higher produced than requested speed. The authors conclude that there was consistency in results showing that speed sensations are quite accurately reproduced by the simulator as a function simulator speed changes, and it is quite easy to achieve transfer functions to simulator speed to be adjusted to reproduce actual driving speed sensations.

Language

  • English

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Filing Info

  • Accession Number: 01111095
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 24 2008 10:38AM