ANY DIFFERENCES IN CRUISE SPEED PATTERNS BETWEEN CRASH- INVOLVED AND CRASH-NOT-INVOLVED DRIVERS?

摘要

This study tried to evaluate freeway cruise speed patterns of crash-involved drivers (26 drivers) and crash-not-involved drivers (141 drivers) from longitudinally observed GPS-speed data (a six-month period). The empirical investigation showed that drivers with crash histories much frequently changed their driving speeds than drivers without any crash history did, but statistical significance was not proved yet, due to the small sample size and large variance in speed data. However, the advance data collection system uniquely used in this study could be worthy to be emphasized. This study introduced the in-vehicle monitoring device containing GPS and wireless mobile communication systems to collect more detailed driving data, which would provide much information on driving patterns for both temporal and spatial investigations.