[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-296806-105":59,"doc-detail-296806-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","driver-fatigue-a-key-road-safety-evidence-review","Driver Fatigue - A Key Road Safety Evidence Review","","Driver Fatigue examines how being fatigued or sleepy impairs driving performance through longer reaction times, reduced attention, and diminished vehicle control. The review highlights sleep-related crashes as more frequent on long, monotonous roads, and notes that fatigued drivers face elevated accident risk including fatal outcomes. It also explains fatigue-related cognitive and motor function dips that create daily peak crash periods, and compares impairment levels to alcohol-related benchmarks to support targeted countermeasures and policy interventions.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/driver-fatigue-a-key-road-safety-evidence-review/296806/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/driver-fatigue-a-key-road-safety-evidence-review/296806.png","ImageObject",300,407,{"name":92,"@type":93},"WPS_1786070896","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-22","2026-09-18",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"How does driver fatigue affect driving performance?","Question",{"text":113,"@type":114},"Driving while fatigued or sleepy impairs performance by increasing reaction times, reducing attention, and compromising the ability to control the vehicle.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"Why are sleep-related vehicle accidents more common on some roads?",{"text":118,"@type":114},"They occur more often on long, monotonous roads because of a lack of stimulating scenarios for drivers.",{"name":120,"@type":111,"acceptedAnswer":121},"When are fatigue-related accidents most prevalent?",{"text":122,"@type":114},"Fatigue accidents peak during two daily periods tied to dips in cognitive and motor function performance, including the early-morning window commonly accepted as 2:00am to 6:00am.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},296806,1789737280,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":130,"read_time":145},549768072016,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Synthesis title:  \nDriver Fatigue  \nCategory: Drivers  \nOther Relevant Topics:  \n Drink Driving  \n Drug Driving  \n Fitness to Drive  \n Older Drivers  \n Buses, Minibuses and Coaches  \nKeywords:  \nDriver fatigue, Driver sleepiness,  \nDriver alertness, Fatigued drivers, Driving performance, Sleep-related vehicle accidents, Cognitive  \nfunctions, Motor functions, Impairment,  \nAccident risk, Restorative  \nrest, Fatigue countermeasures  \nAbout the Road Safety Observatory  \nThe Road Safety Observatory aims to provide free and easy access to independent road safety research and information for anyone working in road safety and for members of the public. It provides summaries and reviews of research on a wide range of road safety issues, along with links to original road safety research reports.  \nThe Road Safety Observatory was created as consultations with relevant parties uncovered a strong demand for easier access to road safety research and information in a format that can be understood by both the public and professionals. This is important for identifying the casualty reduction benefits of different interventions, covering engineering programmes on infrastructure and vehicles, educational material, enforcement and the development of new policy measures.  \nThe Road Safety Observatory was designed and developed by an Independent Programme Board consisting of key road safety organisations, including:  \n Department for Transport  \n The Royal Society for the Prevention of Accidents (RoSPA)  Road Safety GB  \n Parliamentary Advisory Council for Transport Safety (PACTS)  \n RoadSafe  \n RAC Foundation  \nBy bringing together many of the key road safety governmental and non-governmental organisations, the Observatory hopes to provide one coherent view of key road safety evidence.  \nThe Observatory originally existed as a standalone website, but is now an information hub on the RoSPA website which we hope makes it easy for anyone to access comprehensive reviews of road safety topics.  \nAll of the research reviews produced for the original Road Safety Observatory were submitted to an Evidence Review Panel (which was independent of the programme Board), which reviewed and approved all the research material before it was published to ensure that the Key Facts, Summaries and Research Findings truly reflected the messages in underlying research, including where there may have been contradictions. The Panel also ensured that the papers were free from bias and independent of Government policies or the policies of the individual organisations on the Programme Board.  \nThe Programme Board is not liable for the content of these reviews. The reviews are intended to be free from bias and independent of Government policies and the policies of the individual organisations on the Programme Board. Therefore, they may not always represent the views of all the individual organisations that comprise the Programme Board.  \nPlease be aware that the Road Safety Observatory is not currently being updated; the research and information you will read throughout this paper has not been updated since 2017. If you have any enquiries about the Road Safety Observatory or road safety in general, please contact [help@rospa.com](help@rospa.com) or call 0121 248 2000.  \n\n| How do I use this paper?\u003Cbr>This paper consists of an extensive evidence review of key research and information around a key road safety topic. The paper is split into sections to make it easy to find the level of detail you require. The sections are as follows: |  |\n| --- | --- |\n| Key Facts | A small number of bullet points providing the key facts about the topic, extracted from the findings of the full research review. |\n| Summary | A short discussion of the key aspects of the topic to be aware of, research findings from the review, and how any pertinent issues can be tackled. |\n| Methodology | A description of how the review was put together, including the dates during which the research was compiled, ","cbCaimNadOojN8Wx","https://ap.wps.com/l/cbCaimNadOojN8Wx","pdf",1821306,85,"English","# Key Facts\n# Summary\n# Methodology\n# Key Statistics\n# Research Findings\n## Impairment and driving performance\n## Crash risk and road conditions\n## Cognitive and motor function peaks\n# References","[{\"question\":\"How does driver fatigue affect driving performance?\",\"answer\":\"Driving while fatigued or sleepy impairs performance by increasing reaction times, reducing attention, and compromising the ability to control the vehicle.\"},{\"question\":\"Why are sleep-related vehicle accidents more common on some roads?\",\"answer\":\"They occur more often on long, monotonous roads because of a lack of stimulating scenarios for drivers.\"},{\"question\":\"When are fatigue-related accidents most prevalent?\",\"answer\":\"Fatigue accidents peak during two daily periods tied to dips in cognitive and motor function performance, including the early-morning window commonly accepted as 2:00am to 6:00am.\"}]","Driver Fatigue - A Key Road Safety Evidence Review | PDF",214]