{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,6]],"date-time":"2026-06-06T23:19:15Z","timestamp":1780787955970,"version":"3.54.1"},"reference-count":25,"publisher":"European Society of Computational Methods in Sciences and Engineering","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"published-print":{"date-parts":[[2021,12,7]]},"abstract":"<jats:p>To determine the proper range of information quantity of traffic signs in the straight line sections of grassland highways, we have established virtual scenes of such sections of highways with varying levels of information quantity, and we have carried out an experiment on simulated driving. During the research, the method of principal component analysis (PCA) is adopted, and indicators related to eye movements are selected, which prove to be sensitive to the information quantity of traffic signs. Moreover, the pattern of variations is analyzed to examine how the information quantity of traffic signs may impose an impact on drivers\u2019 visual load, and the experimental results are assessed and verified in a subjective manner. The research findings indicate that the information quantity of traffic signs could impose a significant impact on the fixation duration, saccade duration, saccade amplitude and fixation entropy of drivers. Within the proper range of information quantity (20\u201330\u00a0bits\/km), drivers have shown stronger ability to acquire and process information with higher searching efficiency and optimal strategy of allocating attention, which will facilitate safe driving. The subjective assessment of drivers\u2019 workload has also proven the validity of the research findings.<\/jats:p>","DOI":"10.3233\/jcm-215549","type":"journal-article","created":{"date-parts":[[2021,10,26]],"date-time":"2021-10-26T12:42:00Z","timestamp":1635252120000},"page":"2077-2091","source":"Crossref","is-referenced-by-count":2,"title":["Information quantity of traffic signs in grassland highways based on visual load"],"prefix":"10.66113","volume":"21","author":[{"given":"Xiaoju","family":"Li","sequence":"first","affiliation":[{"name":"College of Energy and Transportation Engineering, Inner Mongolia Agricultural University, Hohhot, Mongolia, China"},{"name":"Department of Vehicle Engineering, Baotou Vocational and Technical College, Baotou, Mongolia, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Han","sequence":"additional","affiliation":[{"name":"College of Energy and Transportation Engineering, Inner Mongolia Agricultural University, Hohhot, Mongolia, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shoulin","family":"Zhu","sequence":"additional","affiliation":[{"name":"College of Energy and Transportation Engineering, Inner Mongolia Agricultural University, Hohhot, Mongolia, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingxing","family":"Gao","sequence":"additional","affiliation":[{"name":"College of Energy and Transportation Engineering, Inner Mongolia Agricultural University, Hohhot, Mongolia, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"55691","reference":[{"issue":"5","key":"10.3233\/JCM-215549_ref1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1177\/1687814019853925","article-title":"Studying the effects of freeway alignment, traffic flow, and sign information on subjective driving workload and performance","volume":"11","author":"Xie","year":"2019","journal-title":"Advances in Mechanical Engineering"},{"issue":"1","key":"10.3233\/JCM-215549_ref2","first-page":"7","article-title":"Prediction of ultimate capacities of bored pile based on routine load tests and static analysis (case study)","volume":"8","author":"Hafez","year":"2019","journal-title":"Advances in Industrial Engineering and Management"},{"issue":"1","key":"10.3233\/JCM-215549_ref3","doi-asserted-by":"crossref","first-page":"37","DOI":"10.3141\/2248-05","article-title":"Evaluation of bilingual sign layout and information load before implementation of new signing system","volume":"2248","author":"Smahel","year":"2011","journal-title":"Transportation Research Record"},{"key":"10.3233\/JCM-215549_ref4","doi-asserted-by":"crossref","unstructured":"M. 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Zhou, Research of the information quantity checking standard of the guide symbols in the Chinese traffic guide signs based on the apperceive characteristics of Chinese drivers, 11th International Conference of Chinese Transportation Professionals, 2011.","DOI":"10.1061\/41186(421)186"},{"issue":"4","key":"10.3233\/JCM-215549_ref5","first-page":"174","article-title":"Research on the information overload threshold in the traffic signs of roads","author":"Wang","year":"2009","journal-title":"Highway"},{"issue":"11","key":"10.3233\/JCM-215549_ref6","first-page":"139","article-title":"Design of \u201ccharacteristic traffic sign\u201d and its information measurement method","volume":"20","author":"Zuo","year":"2010","journal-title":"China Safety Science Journal"},{"issue":"6","key":"10.3233\/JCM-215549_ref7","first-page":"82","article-title":"Calculation of the information overload threshold in the traffic signs of roads","volume":"29","author":"Fan","year":"2009","journal-title":"Journal of Chang\u2019an University (Natural Science Edition)"},{"issue":"8","key":"10.3233\/JCM-215549_ref8","first-page":"165","article-title":"Research on the effectiveness of driving workload based on the information quantity of traffic signs","volume":"31","author":"Lu","year":"2018","journal-title":"China Journal of Highway and Transport"},{"key":"10.3233\/JCM-215549_ref9","doi-asserted-by":"crossref","unstructured":"N. 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Deng, Drivers\u2019 cognitive load and driving performance under exposure to traffic sign information in complex environments: A case study of the highways in china, International Journal of Environmental Research and Public Health 14(2) (2017).","DOI":"10.3390\/ijerph14020203"},{"key":"10.3233\/JCM-215549_ref10","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1016\/j.apergo.2017.12.017","article-title":"Fixation distance and fixation duration to vertical road signs","volume":"69","author":"Costa","year":"2018","journal-title":"Applied Ergonomics"},{"issue":"4","key":"10.3233\/JCM-215549_ref11","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1016\/S1570-6672(10)60129-8","article-title":"Drivers visual cognition behaviors of traffic signs based on eye movement parameters","volume":"11","author":"Liu","year":"2011","journal-title":"Journal of Transportation Systems Engineering & Information Technology"},{"issue":"1","key":"10.3233\/JCM-215549_ref12","first-page":"118","article-title":"Relationship between information quantity and visual recognition of traffic signs","volume":"8","author":"Du","year":"2008","journal-title":"Journal of Transport Engineering"},{"issue":"22","key":"10.3233\/JCM-215549_ref13","doi-asserted-by":"crossref","first-page":"52","DOI":"10.3141\/2122-07","article-title":"Effect of luminance and text size on the time of information acquisition from traffic signs","volume":"21","author":"Schnell","year":"2009","journal-title":"Transportation Research Record"},{"issue":"4","key":"10.3233\/JCM-215549_ref14","first-page":"871","article-title":"Difference in drivers\u2019 cognition of information on guiding signs with varying characteristics","volume":"40","author":"Cheng","year":"2010","journal-title":"Journal of Southeast University (Natural Science Edition)"},{"issue":"12","key":"10.3233\/JCM-215549_ref15","first-page":"1830","article-title":"Features of drivers\u2019 visual recognition by eye movements in viewing the text information of traffic signs","volume":"37","author":"Xu","year":"2011","journal-title":"Journal of Beijing University of Technology"},{"issue":"1","key":"10.3233\/JCM-215549_ref16","first-page":"141","article-title":"Research on the information threshold of combined traffic signs","volume":"16","author":"Liu","year":"2016","journal-title":"Journal of Traffic and Transportation Engineering"},{"key":"10.3233\/JCM-215549_ref17","unstructured":"H. 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