Rectification of legibility distance in a driving simulator

Ping Huang Ting, Jiun Ren Hwang, Chin Ping Fung, Ji Liang Doong, Ming Chang Jeng

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Visual differences lead to differences in the legibility distances of traffic signs between driving simulators and real road environments. To ensure that the legibility distance in a simulator is similar to that in the real world, this study proposes a theoretical equation for predicting legibility distance and a simple algorithm for determining the magnifying power of a traffic sign for a display system in a simulator. Experiments of traffic sign recognition using a simulator were conducted under quasi-static and dynamic driving conditions. On-road tests were also carried out under quasi-static and dynamic driving conditions. Thirty healthy and non-disabled volunteers were recruited. The experimental results showed that the proposed theoretical equation for predicting legibility distance and the simple algorithm for determining the magnifying power of traffic signs reduced the difference in legibility distances between the simulator and real road environment under quasi-static and dynamic driving conditions.

Original languageEnglish
Pages (from-to)379-384
Number of pages6
JournalApplied Ergonomics
Volume39
Issue number3
DOIs
StatePublished - May 2008

Keywords

  • Driving simulator
  • Legibility distance
  • Traffic sign

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