Ergonomic factors affecting comprehension levels of traffic signs: A critical review

Comprehension of traffic signs is important to road safety. This review aims to study the extent to which road users in different countries comprehend traffic signs and to identify which ergonomic principles in traffic sign design can affect the levels of comprehension. We conducted an extensive lit...

Full description

Bibliographic Details
Main Authors: Shyrle Berrio, Lope H. Barrero, Laura Zambrano, Eleonora Papadimitriou
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2023-09-01
Series:International Journal of Transportation Science and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S204604302200079X
_version_ 1797779223851565056
author Shyrle Berrio
Lope H. Barrero
Laura Zambrano
Eleonora Papadimitriou
author_facet Shyrle Berrio
Lope H. Barrero
Laura Zambrano
Eleonora Papadimitriou
author_sort Shyrle Berrio
collection DOAJ
description Comprehension of traffic signs is important to road safety. This review aims to study the extent to which road users in different countries comprehend traffic signs and to identify which ergonomic principles in traffic sign design can affect the levels of comprehension. We conducted an extensive literature review dealing with comprehension of public traffic signs directed at any road user. We searched Journal articles indexed by Scopus, ScienceDirect, and Web of Science. The search identified 35 articles that assessed the comprehension of 931 traffic signs in 26 countries, including six studies that tested the comprehension of new versus existing traffic signs. Various methods have been implemented to measure traffic signs’ comprehension levels and assess traffic sign design’s conformity to different ergonomic principles. Results indicate high variability in the comprehension levels of signs, e.g., signs such as “Road works” and “No U-turn” are highly comprehended (comprehension levels over 90 %), while other signs like “termination of road” are rarely comprehended by road users. Regarding the acceptable comprehension levels, 23.1 % of the assessed traffic signs achieved levels above 85 %; and 53.3 % of signs have comprehension levels lower than 67 %. On the other hand, twenty-four studies evaluated how traffic signs comply with ergonomic design principles. Incorporating ergonomic principles into the design of traffic signs can improve comprehension levels. However, apart from the familiarity, there is uncertainty about the ergonomic principles that could maximize the comprehension of traffic signs. Efforts should be made to ensure that different populations of road users sufficiently comprehend traffic signs.
first_indexed 2024-03-12T23:27:37Z
format Article
id doaj.art-dc2b2d8d1b0b4162847cba1458faa700
institution Directory Open Access Journal
issn 2046-0430
language English
last_indexed 2024-03-12T23:27:37Z
publishDate 2023-09-01
publisher KeAi Communications Co., Ltd.
record_format Article
series International Journal of Transportation Science and Technology
spelling doaj.art-dc2b2d8d1b0b4162847cba1458faa7002023-07-16T04:18:23ZengKeAi Communications Co., Ltd.International Journal of Transportation Science and Technology2046-04302023-09-01123848861Ergonomic factors affecting comprehension levels of traffic signs: A critical reviewShyrle Berrio0Lope H. Barrero1Laura Zambrano2Eleonora Papadimitriou3Department of Industrial Engineering, School of Engineering, Pontificia Universidad Javeriana, Bogotá D.C., ColombiaDepartment of Industrial Engineering, School of Engineering, Pontificia Universidad Javeriana, Bogotá D.C., Colombia; Corresponding author.Department of Industrial Engineering, School of Engineering, Pontificia Universidad Javeriana, Bogotá D.C., ColombiaSafety & Security Science Section, Faculty of Technology, Policy & Management, Delft University of Technology, Delft, the NetherlandsComprehension of traffic signs is important to road safety. This review aims to study the extent to which road users in different countries comprehend traffic signs and to identify which ergonomic principles in traffic sign design can affect the levels of comprehension. We conducted an extensive literature review dealing with comprehension of public traffic signs directed at any road user. We searched Journal articles indexed by Scopus, ScienceDirect, and Web of Science. The search identified 35 articles that assessed the comprehension of 931 traffic signs in 26 countries, including six studies that tested the comprehension of new versus existing traffic signs. Various methods have been implemented to measure traffic signs’ comprehension levels and assess traffic sign design’s conformity to different ergonomic principles. Results indicate high variability in the comprehension levels of signs, e.g., signs such as “Road works” and “No U-turn” are highly comprehended (comprehension levels over 90 %), while other signs like “termination of road” are rarely comprehended by road users. Regarding the acceptable comprehension levels, 23.1 % of the assessed traffic signs achieved levels above 85 %; and 53.3 % of signs have comprehension levels lower than 67 %. On the other hand, twenty-four studies evaluated how traffic signs comply with ergonomic design principles. Incorporating ergonomic principles into the design of traffic signs can improve comprehension levels. However, apart from the familiarity, there is uncertainty about the ergonomic principles that could maximize the comprehension of traffic signs. Efforts should be made to ensure that different populations of road users sufficiently comprehend traffic signs.http://www.sciencedirect.com/science/article/pii/S204604302200079XRoad safetySign designInfrastructureComprehension processErgonomic principles
spellingShingle Shyrle Berrio
Lope H. Barrero
Laura Zambrano
Eleonora Papadimitriou
Ergonomic factors affecting comprehension levels of traffic signs: A critical review
International Journal of Transportation Science and Technology
Road safety
Sign design
Infrastructure
Comprehension process
Ergonomic principles
title Ergonomic factors affecting comprehension levels of traffic signs: A critical review
title_full Ergonomic factors affecting comprehension levels of traffic signs: A critical review
title_fullStr Ergonomic factors affecting comprehension levels of traffic signs: A critical review
title_full_unstemmed Ergonomic factors affecting comprehension levels of traffic signs: A critical review
title_short Ergonomic factors affecting comprehension levels of traffic signs: A critical review
title_sort ergonomic factors affecting comprehension levels of traffic signs a critical review
topic Road safety
Sign design
Infrastructure
Comprehension process
Ergonomic principles
url http://www.sciencedirect.com/science/article/pii/S204604302200079X
work_keys_str_mv AT shyrleberrio ergonomicfactorsaffectingcomprehensionlevelsoftrafficsignsacriticalreview
AT lopehbarrero ergonomicfactorsaffectingcomprehensionlevelsoftrafficsignsacriticalreview
AT laurazambrano ergonomicfactorsaffectingcomprehensionlevelsoftrafficsignsacriticalreview
AT eleonorapapadimitriou ergonomicfactorsaffectingcomprehensionlevelsoftrafficsignsacriticalreview