Examining Crashes and Near Crashes Collected in a Large-Scale Naturalistic Driving Study

Project Description The research team will access the existing SHRP2 data to further examine crashes and near-crashes. Specifically the researchers will conduct analyses to determine crash and near-crash rates by age and crash type and crash severity. Additional analyses will be conducted to determine how near-crashes are related to crashes and to understand the differences in the characteristics of near-crashes and those of crashes. Some of the questions the research team expects to answer are: Should near-crashes be studied for contributing and causal factors, as they are usually observed in larger quantities than crashes? What are some meaningful ways researchers in the future can assess the severity of a near-crash? Are participants with more near-crashes more likely to have more crashes? Data Request Scope All crashes, near-crashes, and baselines available on InSight v2.1.1. Data Specification The data set contains all time series data (excluding GPS), Driver Demographic Questionnaire data for all participants (since all SHRP2 participants are represented in the baselines events), and the Event Detail Table.

项目描述
研究团队将获取现有的SHRP2数据，以进一步开展碰撞事故与临界碰撞（near-crash）的相关研究。具体而言，研究团队将通过分析，按年龄、碰撞类型及碰撞严重程度，测算碰撞事故与临界碰撞的发生率。此外，研究团队还将开展额外分析，以明确临界碰撞与碰撞事故的关联，并厘清二者在特征上的差异。研究团队期望解答的部分问题如下：鉴于临界碰撞的观测数量通常多于碰撞事故，是否应当针对临界碰撞展开诱因与成因研究？未来的研究者可通过哪些有意义的途径评估临界碰撞的严重程度？发生更多临界碰撞的参与者是否更有可能遭遇更多碰撞事故？

数据请求范围
InSight v2.1.1平台上可获取的全部碰撞事故、临界碰撞与基线数据。

数据规格说明
本数据集涵盖除全球定位系统（GPS）外的全部时序数据、所有参与者的驾驶员人口统计学调查问卷数据（因所有SHRP2参与者均已纳入基线事件范畴），以及事件详情表。