TY - GEN
T1 - The effect of icon formats on recognizability of traffic signs
AU - Dewi, Ratna Sari
AU - Rohmatin, Miftachur
AU - Maryani, Anny
AU - Dewi, Dyah Santhi
N1 - Publisher Copyright:
© IEOM Society International.
PY - 2021
Y1 - 2021
N2 - Thirty-two per cent of Indonesia's traffic accidents were caused by misperception (inability to understand) the traffic signs. As suggested by previous studies, the icon/symbol format taxonomy is an essential factor that determines the icon recognizability. Thus, a suitable format of a road sign symbol will minimize the drivers' load of information processing. This study conducted a recognizability test on 28 traffic signs in Indonesia, consisting of image-related, concept-related, semi-abstract, arbitrary, and dan combined formats. Image-related icons presented a pictorial representation of an object or an action. Concept related icons visualize a concept that is not represented in concrete images. Arbitrary icons do not have an apparent reference to their intended meaning but become meaningful only through convention and education. Semi-abstract icons combine image-related and concept related or arbitrary elements. In the combined icons, the graphical elements are combined with textual elements (i.e., words or abbreviations). Quantitative parameters used in this study were response time and response accuracy. The participants consisted of eight men and eight women. Participants had an age range of 19-24 years with a mean age of 21.56 (SD=1.59). Besides, each participant had a driving license and normal or corrected-normal visual acuity. The average response accuracy and response time for all 28 icons tested in this study was 41% and 6.4 seconds, respectively. The one-way ANOVA test showed that the road sign format significantly affected the response time and response accuracy (p <0.05). On average, combined icons have the fastest average response time (i.e., 5.92 seconds) and highest respond accuracy (58.72%) compared to other formats. On the other side, the arbitrary icon has the lowest recognizability rate compared to other formats with mean response time was 7.86 seconds and the mean accuracy was only 19.37%. This result suggested the need for better designs of several traffic signs in Indonesia.
AB - Thirty-two per cent of Indonesia's traffic accidents were caused by misperception (inability to understand) the traffic signs. As suggested by previous studies, the icon/symbol format taxonomy is an essential factor that determines the icon recognizability. Thus, a suitable format of a road sign symbol will minimize the drivers' load of information processing. This study conducted a recognizability test on 28 traffic signs in Indonesia, consisting of image-related, concept-related, semi-abstract, arbitrary, and dan combined formats. Image-related icons presented a pictorial representation of an object or an action. Concept related icons visualize a concept that is not represented in concrete images. Arbitrary icons do not have an apparent reference to their intended meaning but become meaningful only through convention and education. Semi-abstract icons combine image-related and concept related or arbitrary elements. In the combined icons, the graphical elements are combined with textual elements (i.e., words or abbreviations). Quantitative parameters used in this study were response time and response accuracy. The participants consisted of eight men and eight women. Participants had an age range of 19-24 years with a mean age of 21.56 (SD=1.59). Besides, each participant had a driving license and normal or corrected-normal visual acuity. The average response accuracy and response time for all 28 icons tested in this study was 41% and 6.4 seconds, respectively. The one-way ANOVA test showed that the road sign format significantly affected the response time and response accuracy (p <0.05). On average, combined icons have the fastest average response time (i.e., 5.92 seconds) and highest respond accuracy (58.72%) compared to other formats. On the other side, the arbitrary icon has the lowest recognizability rate compared to other formats with mean response time was 7.86 seconds and the mean accuracy was only 19.37%. This result suggested the need for better designs of several traffic signs in Indonesia.
KW - And road safety
KW - Image-related
KW - Response accuracy
KW - Response time
UR - http://www.scopus.com/inward/record.url?scp=85114269409&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85114269409
SN - 9781792361241
T3 - Proceedings of the International Conference on Industrial Engineering and Operations Management
SP - 2538
EP - 2539
BT - Proceedings of the 11th Annual International Conference on Industrial Engineering and Operations Management, 2021
PB - IEOM Society
T2 - 11th Annual International Conference on Industrial Engineering and Operations Management, IEOM 2021
Y2 - 7 March 2021 through 11 March 2021
ER -
