Collecting activity-travel diary data by means of a GPS enabled personal digital assistant

Abstract

Collecting activity-travel diary data by means of a GPS enabled personal digital assistant. This paper presents the development of an activity-travel diary data collection tool that runs on a GPS enabled personal digital assistant (PDA). The outline of this paper is as follows: first, the decision to collect the data as activitytravel diaries is justified. Next, the advantages and the disadvantages of a GPS enabled PDA are presented. A functional description of a general GPS enhanced activity-travel diary data collection tool is presented based on the composing functional modules. Next, each module that is implemented in the activity-travel diary data collection tool prototype is described in detail. To conclude, some modules that need to be incorporated in the prototype in the future are listed.