![]() Repair estimates, crash test reports, and vehicle specifications provide data necessary for calculations when vehicle weight, dimensions, and property damage are used. Injury location may be used to help support opinions regarding vehicle dynamics. Emergency personnel run-sheets, medical records, and autopsy reports can provide useful and thorough descriptions of occupant injuries. Oftentimes the eye witnesses may fill the gaps between what can be observed in photographs and what the traffic officers included in their reports. Additional sources to be considered are witness statements and deposition transcripts. Two basic sources of information are the Traffic Collision Report, and photographs of the vehicles and collision scene. Other areas of analysis not included are collisions involving heavy trucks and other articulating vehicles, or impacts involving pedestrians, motorcycles and bicycles.ĭetails regarding the circumstances of a collision are often obtained through several means. ![]() These concepts are presented as they commonly apply to collisions involving passenger cars. The following material is not intended to be comprehensive, but should be considered an overview of fundamental principals. This article presents several basic concepts typically found in the area of investigation and reconstruction of vehicle collisions. Questions such as, “How fast was the vehicle going at impact?” or “How much did the vehicle slow during the locked-wheel braking?” or “At what angles did the two vehicles collide?” can be answered by the reconstructionist after thorough evaluation of available information. spreadsheets, AutoCAD, simulation or modeling tools, graphics and photo-management software). It requires a working knowledge of many disciplines including physics, vehicle dynamics, mathematics, photogrammetry, and computer applications (i.e. The findings have a major practical implication in reducing drivers’ risk of fatal, serious or near crashes.What is Accident Reconstruction? Accident reconstruction is the process using scientific methodology to determine the circumstances, mechanics, and contributing factors associated with a collision. There was also a logistic regression model devised which showed significant effects of velocity, lane offset, TLX scores and age on a participants’ hazard anticipation abilities. The vehicle data, heart rate data and TLX data was analyzed using Mixed subject ANOVA. Analysis of data showed that there was a significant difference in velocity, lane offset and task load index scores across the 2 groups (between-subject factors). #Rear end accident simulation simulator#Standard vehicle data (velocity, acceleration & lane offset) were also collected from the simulator for each participants’ each drive. Eye-movements were also recorded for the proportion of latent and inherent hazards anticipated and mitigated for all participants. After the completion of each experimental drive, participants were asked to fill up a NASA TLX questionnaire which quantifies the overall task load experienced by giving it a score between 1 and 100, where higher scores translate to higher perceived task load. Physiological variables in the form of Heart rate and heart rate variability was collected for each participant during the practice drives and after each of the 8 experimental drives. All participants drove 4 scenarios with a distraction and 4 scenarios without any distraction. Forty-eight young participants aged 18-25 years navigated 8 scenarios each in a mixed subject design with task load (cognitive or visual distraction) as a between-subject variable and the presence/absence of distraction representing the within-subject variable. The two types of task load used in the experiment was a cognitive distraction (mock cell-phone task) & visual distraction (I-pad task). In this study, rear-end crashes were used as the primary crash configuration to target a specific category of crashes due to distraction. ![]() ![]() The current driving simulator study investigates the effect of 2 distinct levels of distraction on a drivers’ situational awareness and latent and inherent hazard anticipation. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |