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Analysis of pedestrian-vehicle crash injury severity factors in Colorado 2006-2016

机译：科罗拉多州行人车祸损伤严重因素分析2006-2016

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摘要

This paper investigates factors associated with the severity of pedestrian outcomes from motor vehicle crashes by analyzing a database of all 13,856 reported pedestrian crashes in Colorado over an 11-year period from 2006 to 2016. A total of 14,391 pedestrians were involved in these crashes, resulting in 612 (4.3%) pedestrian fatalities, 11,576 (80.4%) pedestrian injuries, and 2203 (15.3%) property damage only outcomes. The objective is to analyze crash records, as similarly compiled by other states, to show how lives potentially saved by improved factor levels can be estimated as needed for benefit-cost comparisons of alternative countermeasures.Odds ratios of fatal versus non-fatal pedestrian outcomes are computed both independently (unadjusted) and from logistic regression (adjusted) for each factor level accounting for possible correlations between factors. Also computed are odds ratios for fatal plus incapacitating injuries and odds ratios for just 2011 2016 versus all years. This study found that intersection proximity, lighting condition, vehicle type and speed, pedestrian age, pedestrian impairment, and driver impairment by drugs or alcohol were all significant factors associated with the severity of pedestrian outcomes from motor vehicle crashes. Risk ratios from these odds ratios are used to estimate lives potentially saved by having better factor levels present at the time of these crashes. These estimates reflect the relative magnitudes of benefits that might be achieved by potential countermeasures taking into account the number of cases affected.
机译：本文调查了与机动车崩溃的行人成果的严重程度分析了2006年至2016年的11年期间的所有13,856名行人行人崩溃的数据库，共同调查了机动车辆崩溃的严重性。总共有14,391个行人参与了这些崩溃，导致了14,391个行人612（4.3％）行人死亡，11,576名（80.4％）行人伤害，2203（15.3％）只有结果损失。目的是分析碰撞记录，如其他国家类似地编制的，以估计各种因子水平的潜在节省的生活如何估计替代对策的益处成本比较。致命与非致命行业比较的差额比率为对于每个因子级别占因子之间可能的相关性的每个因子级别计算，可以独立（不调整）和逻辑回归（调整）。同样计算的是致命致命加上2011年截止日期和赔率比2016年损伤的赔率比。该研究发现，药物或酒精的交叉点，照明条件，车辆类型和速度，行人年龄，行人障碍和驾驶员损害是与机动车崩溃的行人成果严重程度相关的所有重要因素。这些差异比率的风险比用于估计通过在这些碰撞时具有更好的因子水平而潜在地节省的生命。这些估计反映了可能通过潜在的对策来实现的相对益处的相对效益，同时考虑到受影响的病例数。

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