Rectification of legibility distance in a driving simulator.
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.
Ting
Ping-Huang
PH
Department of Mechanical Engineering, National Central University, Jhongli, Taiwan 32054, ROC.
Hwang
Jiun-Ren
JR
Fung
Chin-Ping
CP
Doong
Ji-Liang
JL
Jeng
Ming-Chang
MC
D000465:Algorithms; D001334:Automobile Driving; D032882:Comprehension; D003198:Computer Simulation / Q000592:standards*; D006801:Humans; D008123:Location Directories and Signs; D013624:Taiwan