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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Strategies to Reduce Crashes for Young Drivers Not Covered by Graduated Driver Licensing Restrictions






</title>
      <link>https://rip.trb.org/View/2570613</link>
      <description><![CDATA[Some states have observed a growing percentage of young people delaying driver licensure until age 18 or older, along with a declining percentage of teens ages 16–17 obtaining driver licenses. Delay may be due, in part, to their desire to avoid the restrictions, requirements, and costs associated with graduated driver licensing (GDL), which generally applies only to new drivers under the age of 18. 

There are some indications that 18- and 19-year-old drivers who are not covered by GDL restrictions have the highest rate of injury and fatal crash involvement among all young drivers within their first year of licensure. The delay in licensure may be a contributing factor. 

To help address this safety concern, policy proposals have been submitted that focus on increasing the age of driver training requirements and/or GDL restrictions to novice drivers age 18 and older. Research is needed to develop a better understanding of (1) the safety implications associated with delaying driver licensure beyond ages covered by state GDL laws and (2) potential strategies to reduce crash rates for 18- and 19-year-old drivers within their first year of licensure who are not covered by GDL restrictions.

The objective of this research is to develop a guide that identifies potential strategies for consideration by state driver licensing agencies and state highway safety offices (SHSOs) to reduce crash rates for young drivers currently not covered by GDL restrictions. ]]></description>
      <pubDate>Tue, 01 Jul 2025 13:54:43 GMT</pubDate>
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      <title>Older Novice Driver Naturalistic Driving Study</title>
      <link>https://rip.trb.org/View/2444669</link>
      <description><![CDATA[Graduated Driver Licencing (GDL) laws are the most effective behavioral countermeasure for young drivers. However, while an increasing proportion of young people are delaying licensure, few States apply the full GDL program to novices 18 and older. Licensure delays are more likely among Hispanic, Black, and lower socioeconomic status (SES) young people, raising the possibility of inequities in which novices receive the benefits of GDL. However, because little is known about the safety and driving habits of novices ages 18 to 20, questions remain about whether and how to extend GDL. This project involves collecting naturalistic driving data from younger (15.5 - 16.5) and older (18 - 20) novice drivers in their first 12 months of licensure. While all participants will have naturalistic driving data collected using a smartphone app, a subset of participants will also have data collected from equipment installed in their personal vehicles. The contractor will use these data to answer research questions related both to older novice drivers—about which little is known—and predictors of the ‘trajectories’ of safe or risky driving that novices follow as they gain experience. The results will inform potential countermeasures for older novice drivers and driver education.]]></description>
      <pubDate>Mon, 21 Oct 2024 14:44:50 GMT</pubDate>
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      <title>Predicting Outcomes of Proposed Graduated Driver Licensing (GDL) Legislation</title>
      <link>https://rip.trb.org/View/1849302</link>
      <description><![CDATA[Graduated Driver Licensing (GDL) systems help new drivers gain skills under lower-risk conditions. As drivers move through the three stages of GDL, they are given more driving privileges such as driving at night or with passengers. While GDL systems are proven to reduce teen crashes and deaths, there is considerable variation across States and opportunities for improvement. State legislatures passed an average of 11 ‘upgrades’ to existing GDL laws each year between 1998 and 2010, but few
changes to GDL laws have been made in the past ten years. This research project explores the reasons for the slowdown. The first approach is a quantitative study using secondary source data about GDL legislation proposed in State legislatures in the past five year to examine the factors that predict how far the legislation progressed through the process. The second approach is a qualitative approach using nine in-depth case studies of proposed legislation including interviews, legislative history, and media reports. A final report will describe the findings ]]></description>
      <pubDate>Wed, 28 Apr 2021 15:23:26 GMT</pubDate>
      <guid>https://rip.trb.org/View/1849302</guid>
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      <title>Novice Teen Drivers: Million Mile Study</title>
      <link>https://rip.trb.org/View/1354987</link>
      <description><![CDATA[The million-mile study of 14½ year-old drivers is the first study of its type to provide parents and teens context-related information on their driving development using video feedback. Using the DriveCam event triggered video recorder, this study will provide a unique and sustained look into young driver skill development for state and federal policy makers, and the automotive and insurance industries. The objective of this project is to examine driver skill development, behavior and safety of the youngest and most vulnerable drivers - 14½ year-old independent drivers driving to school and school-related activities. Fourteen year-old drivers have never been studied in the naturalistic driving context before. Applying a detailed analysis of this population will provide important additional data to understanding the driving development for our youngest drivers. Such data could be used in future policy enhancements for graduated drivers licensing and training recommendations. The long-range goal of this research is to reduce crashes and related injuries among teen drivers by increasing driving skill and safe driving practices. The project will test a family-focused intervention to influence teens driving and related safety behaviors.]]></description>
      <pubDate>Sat, 23 May 2015 01:01:14 GMT</pubDate>
      <guid>https://rip.trb.org/View/1354987</guid>
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