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/ The mixed-mixed multinomial logit model for identification of factors to the passengers’ seatbelt use https://trid.trb.org/View/2186794 Fri, 01 Sep 2023 15:26:12 GMT https://trid.trb.org/View/2186794 FE Analyses of the Lap Belt Interactions With the Pelvis for Diverse Occupants in Various Sitting Postures https://trid.trb.org/View/2204406 Wed, 23 Aug 2023 15:24:37 GMT https://trid.trb.org/View/2204406 Quantitative Evaluation of Human Body Model Gravity Settling https://trid.trb.org/View/2204186 Mon, 31 Jul 2023 13:38:26 GMT https://trid.trb.org/View/2204186 Car sickness in real driving conditions: Effect of lateral acceleration and predictability reflected by physiological changes https://trid.trb.org/View/2214317 Thu, 27 Jul 2023 16:55:29 GMT https://trid.trb.org/View/2214317 Increasing seat belt use in the United States by promoting and requiring more effective seat belt reminder systems https://trid.trb.org/View/2190133 Thu, 22 Jun 2023 10:10:12 GMT https://trid.trb.org/View/2190133 Investigating the role of health belief model on seat belt use for front seat passengers on urban and rural roads https://trid.trb.org/View/2137463 Wed, 19 Apr 2023 17:00:17 GMT https://trid.trb.org/View/2137463 Sitting posture influence in autonomous vehicles for the evaluation of occupant safety in side impact https://trid.trb.org/View/2068268 Mon, 19 Dec 2022 11:04:08 GMT https://trid.trb.org/View/2068268 Injury Severity Prediction based on Select Vehicle Category of Real-World Accidents Data https://trid.trb.org/View/2068463 Thu, 15 Dec 2022 14:15:15 GMT https://trid.trb.org/View/2068463 Front-Seat Occupant Injuries in Rear Impacts: Analysis of the Seatback Incline Variable in NASS-CDS https://trid.trb.org/View/1818138 30 mph. The data was also analyzed for newer model vehicles (≥1997 MY) to assess changes with newer seats and head restraints. The effects of seatbelt use, occupant age and BMI (Body Mass Index) were also examined. Individual NASS-CDS electronic cases were also reviewed with MAIS 4+F injury. There were 25 injured occupants in rotated seats and 46 in non-rotated seats. Results: Severe injury risk for front-seat occupants in rear impacts is lower with a rotated seatback in the most severe rear crashes. For delta V >30 mph, the risk of severe injury was 3.8-times greater when the seat had not rotated rearward (12.26% v 3.20%). For 20–30 mph delta V, the risk of severe injury was similar. In the lower-speed rear crashes the trend reversed, but the sample size was too small and confounding factors made it difficult to draw meaningful conclusions. Seatbelt use lowered the risk for severe injury by 43% in severe rear crashes; obesity and older age increase injury risks. The results of the individual case review shows that intrusion plays a substantial role in determining injury risk by supporting the seat upright or pushing it forward in severe rear impacts. Conclusions: The relationship between a rotated or non-rotated seatback and injury risk is complex in rear impacts. Analysis of NASS-CDS data finds that a non-rotated seatback increased severe injury risks by 3.8-times for front-seat occupants in >30 mph delta V rear crashes. Analyses of other factors that could explain this increased injury risk other than a non-rotated seat were not suggestive of a cause for this difference other than seat rotation. There remains unanswered the extent to which inaccuracies in the coding of pre- and post-crash seat position may be a factor in some of the findings of this analysis.]]> Mon, 24 Oct 2022 10:22:54 GMT https://trid.trb.org/View/1818138 Finite Element Analysis of a Radio Mounting Clip Under Rear Crash Loading Environment https://trid.trb.org/View/1799330 Wed, 28 Sep 2022 16:56:33 GMT https://trid.trb.org/View/1799330 Observed relationships between driver and passenger restraint use in the front and rear seats https://trid.trb.org/View/1986499 Mon, 18 Jul 2022 09:28:20 GMT https://trid.trb.org/View/1986499 Study on the influence of seating orientation during frontal impacts by child occupant human body model response analysis https://trid.trb.org/View/1925483 Tue, 29 Mar 2022 09:32:52 GMT https://trid.trb.org/View/1925483 Passengers’ acceptance and perceptions of risk while riding in an automated vehicle on open, public roads https://trid.trb.org/View/1893100 Mon, 06 Dec 2021 08:44:56 GMT https://trid.trb.org/View/1893100 Dual-Recliner ABTS Seats in Severe Rear Sled Tests with the 5th, 50th and 95th Hybrid III https://trid.trb.org/View/1856359 Tue, 26 Oct 2021 14:30:16 GMT https://trid.trb.org/View/1856359 Effect of Seat Back Restriction on Head, Neck and Torso Responses of Front Seat Occupants When Subjected to a Moderate Speed Rear-Impact https://trid.trb.org/View/1856363 25 km/h, the front seats may rotate rearward due to occupant and seat momentum change leading to possibly large seat deflection. One possible way of limiting this may be by introducing a structure that would restrict large rotations or deformations, however, such a structure would change the front seat occupant kinematics and kinetics. The goal of this study was to understand the influence of seat back restriction on head, neck and torso responses of front seat occupants when subjected to a moderate speed rear-impact. This was done by simulating a rear impact scenario with a delta-V of 37.4 km/h using LS-Dyna, with the GHBMC M50 occupant model and a manufacturer provided seat model. The study included two parts, the first part was to identify worst case scenarios using the simplified GHBMC M50-OS, and the second part was to further investigate the identified scenarios using the detailed GHBMC M50-O. The baseline condition included running the belted GHBMC on the seat at the specified pulse. This was followed by including a seatback constraint, a restriction bar, at 65 mm from the seat back to restrict rearward movement. Four different scenarios were investigated using the GHBMC M50-OS for the first part of the study both in the baseline and inclusion of a restriction bar behind the seatback: occupant seated normally; occupant offset on the seat; occupant rotated on the seat; and occupant seated normally but at a slightly oblique rear impact direction. The oblique condition was identified as the worst-case scenario based on the inter-vertebral kinematics; therefore, this condition was further investigated in the simulations with GHBMC M50-O. In the oblique rear impact scenario, the head missed the head restraint leading to inter-vertebral rotations exceeding the physiological range of motions regardless of the restriction bar use. However, adding a restriction bar behind the seat back showed a higher HIC and BrIC in both normal and oblique pulses due to the sudden stop, although the magnitudes were below the threshold.]]> Tue, 31 Aug 2021 11:22:56 GMT https://trid.trb.org/View/1856363