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After renewal, drivers were grouped by whether they took a road test, received restrictions, or had suspensions. Restrictions grouped drivers showed clearer differences in age, visual impairments, prescription medications, and physical mobility limits, with reduced driving exposure following renewal.",{"@graph":69,"@context":122},[70,84,105],{"@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/restricted-licensing-among-older-drivers-in-iowa/440477/",{"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/restricted-licensing-among-older-drivers-in-iowa/440477.png","ImageObject",300,407,{"name":92,"@type":93},"\tJames","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-01","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What was the objective of the study in Iowa?","Question",{"text":112,"@type":113},"The study assessed whether Iowa’s license restriction program identifies older drivers who may have greater crash risk and evaluated compliance with the restrictions.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How were drivers grouped after license renewal?",{"text":117,"@type":113},"Among 522 drivers, some renewed without a road test (Group 1), others took a road test and renewed without restrictions (Group 2), received restrictions (Group 3), or had suspensions (Group 4).",{"name":119,"@type":110,"acceptedAnswer":120},"What impact did license restrictions have on driving exposure?",{"text":121,"@type":113},"Reported average weekly mileage decreased more for drivers with restrictions, and decreases were greater for restricted conditions across restriction types, while most drivers complied with restrictions.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},440477,1790818441,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":29,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},2336474466412,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Journal of Safety Research 41 (2010) 481–486  \n\n| | Contents lists available at ScienceDirect\u003Cbr>Journal of Safety Research\u003Cbr>journal homepage: [www. else vier. com/locate/j sr](www. else vier. com/locate/j sr) | |\n| --- | --- | --- |\n| Restricted licensing among older drivers in Iowa Keli A. Braitman a,⁎, Neil K. Chaudhary b, Anne T. McCartt a\u003Cbr>a Insurance Institute for Highway Safety, 1005 North Glebe Road, Arlington, Virginia 22201 United States b Preusser Research Group, 7100 Main Street, Trumbull, Connecticut 06611 United States |  |  |\n\na r t i c l e i n f o a b s t r a c t  \nArticle history:  \nReceived 9 March 2010  \nReceived in revised form 12 October 2010 Accepted 13 October 2010  \nAvailable online 30 October 2010  \nKeywords:  \nOlder drivers License restrictions  \nLicense renewal Visual impairments Crash risk  \nObjectives: To determine whether Iowa's license restriction program identifies older drivers who appear to beat greater crash risk and to assess compliance with license restrictions. Methods: A total of 522 drivers 70 and older who were attempting to renew their driver's licenses at licensing offices in Iowa participated in two telephone surveys: one shortly after renewal to discuss driving before renewal and another 6 months later to assess any changes. Surveys assessed driving behavior, crashes, and violations as well as self-reported visual impairments, prescription medications, and physical mobility limitations. Results: Of the 522 drivers, 232 renewed their licenses without having to take a road test (Group 1), and 290 were required to take a road test; of the drivers taking a road test, 191 renewed without restrictions (Group 2), 93 received restrictions (Group 3), and 6 had their licenses suspended (Group 4). The small number of drivers with suspensions precluded including this group in analyses. There were clear distinctions among drivers in the first three groups at the initial survey. Driver age increased across Groups 1-3, as did some visual impairments, number of prescription medications, and physical mobility limitations. Many drivers who received restrictions (Group 3) already were driving fewer miles than drivers in Groups 1-2, and were driving less often at night and on high-speed roads. Following license renewal, reported average weekly mileage decreased more among drivers with license restrictions (Group 3) (36 %) than among drivers without restrictions (Groups 1-2) (4 % each). For all license restriction types (headlight, geographic area, or speed), decreases in the likelihood of driving during these restricted conditions were greater for drivers with the relevant restrictions than without. Most drivers complied with restrictions. Conclusions: Iowa's license restriction program identifies drivers with more selfreported visual impairments, prescription medications, and physical mobility limitations. Driving exposure was reduced among drivers who received restrictions, though it appears in some cases the restrictions reinforced decisions already made by drivers. Impact on industry: License restrictions may be an effective alternative to premature driving cessation and provide some drivers additional time on the road and hence continued mobility and independence. However, overall safety benefits of license restrictions are yet unknown.  \n© 2010 National Safety Council and Elsevier Ltd. All rights reserved.  \n1. Introduction  \nThe rapid growth in older driver populations in the United States and elsewhere has led to concerns about potential effects on traffic safety. A recent study examined historical crash rates for older drivers and projected that these drivers would become an increasing proportion of the overall crash problem, including fatal crashes (Lyman, Ferguson, Braver, & Williams, 2002). However, despite growing numbers of older drivers on the road, fewer people 70 and older died in crashes, and fewer were involved in fatal collisions during 1997-2006 than during prior years (Cheung, McCar","cbCaickPzf1lw5ql","https://ap.wps.com/l/cbCaickPzf1lw5ql","pdf",164468,"English","# Objectives and Methods\n## Participants and Survey Design\n## Results and Compliance\n## Conclusions and Industry Impact","[{\"question\":\"What was the objective of the study in Iowa?\",\"answer\":\"The study assessed whether Iowa’s license restriction program identifies older drivers who may have greater crash risk and evaluated compliance with the restrictions.\"},{\"question\":\"How were drivers grouped after license renewal?\",\"answer\":\"Among 522 drivers, some renewed without a road test (Group 1), others took a road test and renewed without restrictions (Group 2), received restrictions (Group 3), or had suspensions (Group 4).\"},{\"question\":\"What impact did license restrictions have on driving exposure?\",\"answer\":\"Reported average weekly mileage decreased more for drivers with restrictions, and decreases were greater for restricted conditions across restriction types, while most drivers complied with restrictions.\"}]","Restricted licensing among older drivers in Iowa | PDF",1790692341,15]