This Technical Report provides an in-depth analysis of crashes involving 15-passenger vans to assess the effect of occupancy level on the risk of rollover. The report is organized into two major sections, the first of which provides statistics on fatal crashes involving 15-passenger vans from 1990 to 2002 using data from NHTSA’s Fatality Analysis Reporting System (FARS). The statistics in this section are for descriptive purposes only and should not be used to interpret propensity or risk of rollover in 15-passenger vans. The second section constructs a logistic regression model to model the effect of various factors, most importantly occupancy level, on the risk of rollover. The model is constructed using data from 1994 to 2001 on police-reported motor vehicle traffic crashes in Florida, Maryland, Pennsylvania, North Carolina and Utah that are part of NHTSA’s State Data System (SDS). The data represent the entire cross-section of police-reported crashes and are hence more representative of the real-world experience of these vehicles. (Author/publisher)
Samenvatting