摘要: |
Travel surveys will continue to be one of the most important ways of obtaining the critical information needed for transportation planning and decision making in the new millennium. In the last half century, travel survey methods have undergone tremendous change. Originally, travel surveys were conducted primarily through face-to-face interviews, typically conducted in respondents' homes or at intercept points along major roadways and transit routes or at major transportation nodes. Significant changes in modern urban lifestyles, however, made the large-scale use of traditional face-to-face survey methods extremely costly. Current state-of-the-art household travel surveys rely extensively on the use of mail and telephone to obtain information on the daily travel and other activities of a representative sample of the population. The biggest problem faced in conducting high-quality travel surveys today is nonparticipation. The basic conflict between the need for increasingly detailed and frequent data on daily travel patterns and the growing difficulty in contacting and interviewing persons about their travel will require continued improvements in travel survey methods. This paper discusses some of the likely improvements. |