Movement data from gpsies.com was downloaded to evaluate whether the movement type (walk,cycling,driving) can be detected automatically in absense of time information. Data was grabbed from May 1st, 2010 to June 30th, 2010.
Zip compressed archive with RSS and refering GPX files. Uncompressed there are ~2GB in ~33,000 files.
Garbe, M.; Bünnig, C.; Gutschmidt, A. & Cap, C.; Moving Type Detection without Time Information; ICSC 2012: Sixth IEEE International Conference on Semantic Computing, 2012.