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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <link>https://trid.trb.org/</link>
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      <title>Predicted availability and fitment of safety features on registered vehicles — a 2019 update</title>
      <link>https://trid.trb.org/View/1670099</link>
      <description><![CDATA[This bulletin tracks and projects the number of new vehicles with advanced driver assistance systems including: electronic stability control, rear parking sensors, front crash prevention, front automatic emergency braking, rear cameras, adaptive headlights, lane departure warning, and blind spot monitoring. Each safety feature has graphs illustrating percentage of new vehicles with that feature by model year through 2017/2018; percentage of registered vehicles with that safety feature by calendar year, through 2017/2018; and predicted percentage of registered vehicles with that safety feature by calendar year projected through at least 2046.]]></description>
      <pubDate>Mon, 18 May 2020 11:29:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/1670099</guid>
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      <title>IIHS crashworthiness evaluation programs and the U.S. vehicle feet — a 2019 update</title>
      <link>https://trid.trb.org/View/1670098</link>
      <description><![CDATA[This bulletin describes vehicle crashworthiness tests conducted by the Insurance Institute for Highway Safety and combines crash test ratings and vehicle registration data. The crash tests include moderate overlap frontal, side impact, roof strength, and small overlap frontal test programs. Results show the distribution of crash test ratings for all registered vehicles for each type of crash test by calendar year. By 2018, vehicles rated good for the moderate overlap frontal test represented 83% of the rated vehicle population; vehicles rated good for the side impact crash test represented 79%; vehicles rated good for the roof strength test represented 81%; vehicles rated good for the small overlap frontal test represented 45%. For all four crash tests, there were dramatic increases in good-rated vehicles from the first year of testing to 2018.]]></description>
      <pubDate>Mon, 18 May 2020 11:29:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/1670098</guid>
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      <title>Tesla Model S driver assistance technologies</title>
      <link>https://trid.trb.org/View/1531850</link>
      <description><![CDATA[This document explores Tesla's advanced driver assistance systems (ADAS) available for the 2012-2016 Tesla Model S and the associated claim frequency under property damage liability coverage and bodily injury liability coverage. Driver assistance features examined include Tesla's Autopilot system, forward collision warning, automatic emergency breaking, and blind spot warning. Insurance losses are compared between Teslas with driver assistance technology and conventional large luxury vehicles. In addition, claim frequencies before and after the addition of Autopilot to Tesla Model S are analyzed. It was found that ADAS were associated with a 21% deduction in bodily injury liability claim frequency and   an 11% reduction in property damage liability claim frequency. While there was no change in collision claim frequency, increases were seen in personal injury protection claim frequencies and medical payment.]]></description>
      <pubDate>Mon, 28 Jan 2019 17:07:59 GMT</pubDate>
      <guid>https://trid.trb.org/View/1531850</guid>
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      <title>Effect of Subaru EyeSight on pedestrian-related bodily injury liability claim frequencies</title>
      <link>https://trid.trb.org/View/1526722</link>
      <description><![CDATA[Subaru EyeSight® includes a feature that detects pedestrians and brakes to avoid a collision. This report examines injury-only bodily injury (BI) liability claim frequencies for EyeSight-equipped vehicles in comparison to claim frequency of the same vehicles without EyeSight. Regression analysis found a 35% reduction in pedestrian-related claim frequency in Eye-sight equipped vehicles. Additional analysis includes a closer look at the different versions of EyeSight and different Subaru models.]]></description>
      <pubDate>Wed, 19 Dec 2018 16:51:41 GMT</pubDate>
      <guid>https://trid.trb.org/View/1526722</guid>
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      <title>The effects of Michigan’s weakened motorcycle helmet use law on insurance losses – five years later</title>
      <link>https://trid.trb.org/View/1512273</link>
      <description><![CDATA[Michigan's motorcycle helmet law allows motorcyclists 21-years of age and older to ride without a helmet as long as they have at least $20,000 in medical payment (MedPay) coverage. This report examines insurance loss data from 2010, before the law was enacted in April of 2012, through the 2016 riding season. The losses were compared with losses in control States with traditional motorcycle helmet laws. The analysis showed a significant increase in MedPay overall losses that coincided with the helmet law change. Losses were 64% higher when compared to control States. Both MedPay and collision exposure increased by 12%.]]></description>
      <pubDate>Wed, 19 Dec 2018 16:51:41 GMT</pubDate>
      <guid>https://trid.trb.org/View/1512273</guid>
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      <title>Recreational marijuana and collision claim frequencies</title>
      <link>https://trid.trb.org/View/1564341</link>
      <description><![CDATA[This document studies collision claim frequencies after the legalization of recreational marijuana in Colorado, Washington state, and Oregon. It compares collision claim frequencies of states that have legalized recreational marijuana with surrounding states that have not legalized it. It builds on a previous report published by the Highway Loss Data Institute (HLDI) in April 2017 which determined that collision claims increased after legalization. The current report takes into account Nevada's legalization of recreational marijuana in November of 2016 and removes Nevada from the comparison states. A single analysis of Colorado, Washington, and Oregon found an increase in collision claim frequency of 6% associated with legalization. However, the results for Oregon no longer exhibited a statistically significant difference. Oregon's collision claim frequency was less than 1% higher than in Idaho and Montana. Both Washington and Colorado still exhibited statistically significant increased claim frequencies with legalization. Collision claim frequencies in Colorado were 12.5% higher than in Nebraska, Utah, and Wyoming; and in Washington, claim frequencies were 9.7% higher than in Idaho and Montana.  The report concludes with an examination of each state's marijuana retail tax revenue and discusses implications for claim frequencies.]]></description>
      <pubDate>Wed, 24 Oct 2018 11:16:31 GMT</pubDate>
      <guid>https://trid.trb.org/View/1564341</guid>
    </item>
    <item>
      <title>Predicted availability and fitment of safety features on registered vehicles</title>
      <link>https://trid.trb.org/View/1497395</link>
      <description><![CDATA[This report looks at trends in the percentage of U.S. vehicles equipped with advanced driver assistance technologies and predicts the percentage equipped through 2050. Systems examined include: rear cameras, rear parking sensors, lane departure warning, blind spot monitoring, frontal crash prevention systems, adaptive headlights, and automatic emergency braking. Rear cameras is the only feature predicted to be installed on more than half of registered vehicles by 2021.]]></description>
      <pubDate>Fri, 20 Jul 2018 09:15:12 GMT</pubDate>
      <guid>https://trid.trb.org/View/1497395</guid>
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      <title>Losses due to animal strikes</title>
      <link>https://trid.trb.org/View/1491246</link>
      <description><![CDATA[Based on insurance claim data covering January 2006 through December 2016, November is the peak month for animal strikes with 13.9 claims per 1,000 insured vehicle years. West Virginia, Iowa, and Pennsylvania are the States with the highest claim frequency for animal strikes in November.  Additional data in this bulletin includes: Claim frequency, claim severity, and overall loss by month; November animal collision frequency by State; and Claim frequency, claim severity and overall loss for the 10 States and 20 counties with the highest claim frequencies for November animal strikes. November is deer mating season which may explain a rise in claim severity for this time of year.]]></description>
      <pubDate>Fri, 29 Dec 2017 09:30:40 GMT</pubDate>
      <guid>https://trid.trb.org/View/1491246</guid>
    </item>
    <item>
      <title>Illinois mandatory on-road driving test for older drivers</title>
      <link>https://trid.trb.org/View/1456850</link>
      <description><![CDATA[Illinois is currently the only State that requires older drivers take an on-road driving test at license renewal. This bulletin examines whether requiring a driving test affects insurance claim frequencies and bodily injury liability exposure for older drivers. Indiana, Iowa, Missouri, and Wisconsin were used as comparison States. It is concluded that claim frequencies and bodily injury exposure rates for older drivers in Illinois were significantly reduced compared to control States.]]></description>
      <pubDate>Tue, 27 Jun 2017 16:08:54 GMT</pubDate>
      <guid>https://trid.trb.org/View/1456850</guid>
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    <item>
      <title>New Hampshire mandatory on-road driving test for older drivers</title>
      <link>https://trid.trb.org/View/1456849</link>
      <description><![CDATA[In 2011 New Hampshire ended the requirement that drivers 75 and older had to take an on-road driving test at license renewal every five years. This bulletin includes an examination of insurance claim frequency for older drivers comparing 2009-2010 before the law change and 2012-2014 after the law change. Vermont and Maine were used as comparison states. It is concluded that there is no significant evidence that the road test reduced insurance claims among older drivers.]]></description>
      <pubDate>Tue, 27 Jun 2017 16:08:52 GMT</pubDate>
      <guid>https://trid.trb.org/View/1456849</guid>
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    <item>
      <title>Evaluation of Changes in Teenage Driver Exposure — an Update</title>
      <link>https://trid.trb.org/View/1403077</link>
      <description><![CDATA[This bulletin updates a 2013 analysis of teen driver exposure. By looking at licensing age requirements, census population estimates, and unemployment rates, the 2013 analysis found that the number of teenagers getting drivers licenses had declined. It was hypothesized based on the data that economic factors played a major role in the level of licensed or insured teens. In this update, data from calendar years 2013 and 2014 are added to the previous study. From 2012 to 2014 the unemployment rate for teenagers and prime-age adults declined. During this decline the teen-to-prime-age insurance exposure ratio rose. This validates the previous analysis and establishes that as their economic situation improves, driver licensure rates/the level of insured teens will increase. The authors warn that if rising teen exposure continues this could result in more teen crashes and fatalities as more teens are on the road.]]></description>
      <pubDate>Wed, 21 Sep 2016 14:40:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/1403077</guid>
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    <item>
      <title>Collision claim frequencies and NFL games</title>
      <link>https://trid.trb.org/View/1344029</link>
      <description><![CDATA[National Football League (NFL) games are attended by thousands of spectators. Attendees traveling to the games on game day can cause major changes in local traffic patterns. This document looks at collision claims, based on zip code, in areas around NFL stadiums. It was found that on game days there was a 5.8% increase in collision claims. Additional data analyzed in this bulletin includes: day of the week, outcome of the game, and proximity to stadium. The ten stadiums with the largest estimated effects on collision claims are also presented.]]></description>
      <pubDate>Fri, 24 Apr 2015 10:24:08 GMT</pubDate>
      <guid>https://trid.trb.org/View/1344029</guid>
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    <item>
      <title>Young teen crash risk by vehicle type</title>
      <link>https://trid.trb.org/View/1316737</link>
      <description><![CDATA[The Highway Loss Data Institute compared collision claim rates by vehicle type and size with age group. It was determined that teen drivers, 15-17 years old, are twice as likely as drivers, 35-50 years old, to crash driving small two- and four-door passenger cars. In conjunction with HLDI's study, the Insurance Institute for Highway Safety (IIHS) analyzed the Fatality Analysis Reporting System (FARS) for fatalities by vehicle type and size. This analysis concluded that younger drivers were more often involved in fatal car crashes and fatalities occurred in small cars more often than any other vehicle.]]></description>
      <pubDate>Thu, 25 Sep 2014 08:59:56 GMT</pubDate>
      <guid>https://trid.trb.org/View/1316737</guid>
    </item>
    <item>
      <title>Honda Accord collision avoidance features: initial results</title>
      <link>https://trid.trb.org/View/1312657</link>
      <description><![CDATA[This bulletin focuses on crash avoidance technologies for Honda Accord vehicles and insurance loss results. The technologies are a combined forward collision warning and lane departure warning system (FCW/LDW) and a blind spot information system. Claim frequency and claim severity were modeled and estimates for overall losses are provided for collision, property damage liability, bodily injury liability, medical payments, and personal injury protection. In general, claim frequencies, severity, and overall losses  all declined with the FCW/LDW system.]]></description>
      <pubDate>Wed, 27 Aug 2014 10:50:50 GMT</pubDate>
      <guid>https://trid.trb.org/View/1312657</guid>
    </item>
    <item>
      <title>Losses due to animal strikes</title>
      <link>https://trid.trb.org/View/1305020</link>
      <description><![CDATA[This Bulletin analyzes insurance claims in the United States from January 2006 through December 2011 for crashes involving animal strikes. Claim frequency rose in October and peaked in November with an average of 6.5 claims per 1,000 insured vehicle years. Deer mating season in November may explain the frequency increase. Average claim severity was $2,898 in 2011. Information is also provided for the 10 States with the highest claim frequencies and the 20 counties with the highest claim frequencies.]]></description>
      <pubDate>Tue, 22 Apr 2014 15:04:23 GMT</pubDate>
      <guid>https://trid.trb.org/View/1305020</guid>
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