The Effect of Optical Illusion 3D Crosswalk on Vision | iHSES

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The Effect of Optical Illusion 3D Crosswalk on Vision


Assoc. Prof. Dr. Chin-Chun Lai, Tatung University, Taiwan
Student Ting-Yun You, Tatung University, Taiwan
Student Yung-An Lei, Tatung University, Taiwan


Stepping stones, which is the ancient crosswalk, the main function of it is to warn drivers to slow down. However, the main function is no longer existed in today’s crosswalk. Due to the reason mentioned above, the purpose of the study is to combine advantages with two different crosswalk, two-dimensional (2D) crosswalk (safety for pedestrian) and stepping stones (warning function for driver). Therefore, the study redrew six versions of three-dimensional (3D) optical illusion crosswalk samples, referring to the regulation from Ministry of Transportation and Communications, R.O.C. and 3 different types of shadow caused by one-point perspective (front-shadow, back-shadow and non-shadow) and 3 different visual 3D thickness (45cm, 50cm and 60cm). In the questionnaire, the study including 30 respondents and asking respondents’ feedback of 3D samples’ degree with five-level Likert Scale. The results showed that “3D visual thickness 50cm crosswalk with front-shadow” had the best sensation in six versions 3D samples.


innovation, design, optical illusion, perspective  


Lai, C., You, T. & Lei, Y. (2021). The Effect of Optical Illusion 3D Crosswalk on Vision. In R. Thripp & I. Sahin (Eds.), Proceedings of iHSES 2021--International Conference on Humanities, Social and Education Sciences (pp. 375-384). Monument, CO, USA: ISTES Organization. Retrieved 05 December 2021 from


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