Impact of vehicle usage on consumer choice of hybrid electric vehicles

We analyze the vehicle usage and consumer profile attributes extracted from both National Household Travel Survey and Vehicle Quality Survey data to understand the impact of vehicle usage upon consumers’ choices of hybrid electric vehicles in the US. In addition, the key characteristics of hybrid vehicle drivers are identified to determine the market segmentations of hybrid electric vehicles and the critical attributes to include in the choice model. After a compatibility test of two datasets, a pooled choice model combining both data sources illustrates the significant influences of vehicle usage upon consumers’ choices of hybrid electric vehicles. Even though the data-bases have in the past been used independently to study travel behavior and vehicle quality ratings, here we use them together.     

采用新控制和传动技术的汉堡地铁车辆

为了试验汉堡地铁今后车辆采用的新技术,将最近交货的17台DT4车辆装备了最新一代控制和传动技术,用MIRAC的控制技术系统取代以前DT4车辆应用的MICAS-S系统,变流器由GTO技术改为IGBT技术.新设计可以改造以前结构系列的DT4车辆.