Survey Long Distance Travel; TU Delft-version of Dateline

Corrected, extended and updated data of the Dateline survey, including some surrounding databases.Dateline was a large EU-funded survey on long-distance travelling by EU-residents. The survey is highly relevant because data collection on long-distance travel behavior is almost nonexistent and Dateline is by now the most comprehensive and complete survey for Europe. However, the published datasets suffer from a number of serious shortcomings, lowering the usefulness of the data for research. The shortcomings regard, among others, the expansion and many data errors. Expansion of long-distance travel data is always a difficult job, but it could be much better than was done by the Dateline-consortium. We developed new more realistic expansion factors, both for 2002 (the Dateline year) and for 2017 and corrected most of the errors. Moreover, we added new information to the datafiles that might be convenient for researchers.

本数据集为《Dateline》调查（Dateline survey）的修正、扩展与更新数据，涵盖部分周边关联数据库。《Dateline》是一项由欧盟资助的大型调查，旨在调研欧盟居民的长途出行行为。该调查具备极高研究价值，原因在于当前针对长途出行行为的数据采集工作几乎空白，而《Dateline》是目前欧洲地区最全面、最完整的同类调查。然而，已公开的原始数据集存在多项严重缺陷，大幅降低了其科研应用价值。此类缺陷涵盖抽样扩展方法缺陷与大量数据错误等多个方面。长途出行数据的抽样扩展始终是一项极具挑战性的工作，但本团队的处理方案远优于《Dateline》项目组的原有做法。本团队针对2002年（即《Dateline》调查的实施年份）与2017年两套样本，开发了更贴合实际的抽样扩展因子，并修正了绝大多数数据错误。此外，本团队还为数据文件补充了多项便于科研人员使用的新增信息。