Traveler information in support of driver's diversion decisions: A survey of driver's preferences

Results from the analysis of a survey of drivers' information needs and preferences are presented. Emphasis is placed on drivers' preferences for traveler information in support of diversion decisions. In particular, the effects of different trip types on drivers' information needs are examined using several approaches, including factor and discriminant analysis. The findings, while revealing some consistency between drivers' reported information needs for diversion decisions, also reveal significant differences in these needs by trip type. Time thresholds for determining when to divert are analyzed. Significant differences by trip type are found. The major recommendation arising from the analysis is development of an advanced traveler information system (ATIS) that can be customized to meet users' needs.