Depends on how fine-grained the data is. Hard braking and then gradual re-acceleration could mean you getting cut off on the highway, vs. hard-braking prior to

Depends on how fine-grained the data is. Hard braking and then gradual re-acceleration could mean you getting cut off on the highway, vs. hard-braking prior to a full stop, a wait, and then hard acceleration could mean a tailgater taking off from a stoplight. Also, how regular the occurrences were would also give insight.