Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2024. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ NHTSA Field Crash Investigation 2022 Coding and Editing Manual https://trid.trb.org/View/2301129 Thu, 07 Dec 2023 16:55:00 GMT https://trid.trb.org/View/2301129 Designing an NHTSA Crash Injury Research Analog Program for General Aviation / Advanced Air Mobility https://trid.trb.org/View/2270024 Mon, 23 Oct 2023 08:51:44 GMT https://trid.trb.org/View/2270024 NHTSA Field Crash Investigation 2021 Coding and Editing Manual https://trid.trb.org/View/2083620 Thu, 15 Dec 2022 11:26:04 GMT https://trid.trb.org/View/2083620 Injuries to Children One to Three Years Old in Side Impact Crashes https://trid.trb.org/View/1368116 Fri, 25 Sep 2015 16:20:28 GMT https://trid.trb.org/View/1368116 Near-Side Occupants in Low Delta-V Side Impact Crashes: Analysis of Injury and Vehicle Damage Patterns https://trid.trb.org/View/1364792 Fri, 28 Aug 2015 13:57:03 GMT https://trid.trb.org/View/1364792 Computational Analysis of Real World Crashes: A Basis for Accident Reconstruction Methodology https://trid.trb.org/View/1366987 Fri, 28 Aug 2015 13:56:50 GMT https://trid.trb.org/View/1366987 Occupant Dynamics and Injuries in Narrow-Object Side Impact https://trid.trb.org/View/1366995 Fri, 28 Aug 2015 13:56:24 GMT https://trid.trb.org/View/1366995 Introduction and Initial Analysis of New Side Impact Variables Captured in NHTSA Crash Databases https://trid.trb.org/View/1365260 Wed, 26 Aug 2015 08:52:25 GMT https://trid.trb.org/View/1365260 Obesity and vehicle type as risk factors for injury caused by motor vehicle collision https://trid.trb.org/View/1306600 Wed, 28 May 2014 15:24:07 GMT https://trid.trb.org/View/1306600 Burst fractures of the lumbar spine in frontal crashes https://trid.trb.org/View/1278268 20% height loss) of the lumbar spine occur as a result of motor vehicle crashes, despite the improvements in restraint technologies. Lumbar burst fractures typically require an axial compressive load and have been known to occur during a non-horizontal crash event that involve high vertical components of loading. Recently these fracture patterns have also been observed in pure horizontal frontal crashes. This study sought to examine the contributing factors that would induce an axial compressive force to the lumbar spine in frontal motor vehicle crashes. Methods: The authors searched the National Automotive Sampling System (NASS, 1993–2011) and Crash Injury Research and Engineering Network (CIREN, 1996–2012) databases to identify all patients with major compression lumbar spine (MCLS) fractures and then specifically examined those involved in frontal crashes. National trends were assessed based on weighted NASS estimates. Using a case–control study design, NASS and CIREN cases were utilized and a conditional logistic regression was performed to assess driver and vehicle characteristics. CIREN case studies and biomechanical data were used to illustrate the kinematics and define the mechanism of injury. Results: During the study period 132 NASS cases involved major compression lumbar spine fractures for all crash directions. Nationally weighted, this accounted for 800 cases annually with 44% of these in horizontal frontal crashes. The proportion of frontal crashes resulting in MCLS fractures was 2.5 times greater in late model vehicles (since 2000) as compared to 1990s models. Belted occupants in frontal crashes had a 5 times greater odds of a MCLS fracture than those not belted, and an increase in age also greatly increased the odds. In CIREN, 19 cases were isolated as horizontal frontal crashes and 12 of these involved a major compression lumbar burst fracture primarily at L1. All were belted and almost all occurred in late model vehicles with belt pretensioners and buckets seats. Conclusion: Major compression burst fractures of the lumbar spine in frontal crashes were induced via a dynamic axial force transmitted to the pelvis/buttocks into the seat cushion/pan involving belted occupants in late model vehicles with increasing age as a significant factor.]]> Tue, 03 Dec 2013 09:12:11 GMT https://trid.trb.org/View/1278268 A similarity scoring technique to analyse comparisons of real–world crashes to crash tests: initial results from a 12–point system https://trid.trb.org/View/1256749 Fri, 26 Jul 2013 10:12:38 GMT https://trid.trb.org/View/1256749 Analysis of Cervical Spine Injuries and Mechanisms for CIREN Rollover Crashes https://trid.trb.org/View/1253173 Mon, 24 Jun 2013 10:57:44 GMT https://trid.trb.org/View/1253173 Head Injury Causation Scenarios for Belted, Rear-Seated Children in Frontal Impacts https://trid.trb.org/View/1091082 Fri, 25 Feb 2011 10:22:31 GMT https://trid.trb.org/View/1091082 Examination of the Impact of Airbags on Renal Injury Using a National Database https://trid.trb.org/View/981856 Thu, 18 Nov 2010 11:50:11 GMT https://trid.trb.org/View/981856 Vehicle Model Year and Crash Outcomes: A CIREN Study https://trid.trb.org/View/907094 Mon, 25 Jan 2010 08:08:50 GMT https://trid.trb.org/View/907094