Locomotion is the tendency to initiate action quickly, and “just do it,” and set upon goal pursuit. People who score high on the locomotion scale are persons of actions, “go getters” that leap into action without hesitation. They do not rest much between tasks and feel most comfortable when in the course of action.
The locomotion and assessment scales were published in the following paper: Kruglanski, A. W., Thompson, E. P., Higgins, E. T., Atash, M. N., Pierro, A., Shah, J. Y., & Spiegel, S. (2000). To "do the right thing" or to "just do it": Locomotion and assessment as distinct self-regulatory imperatives. Journal of Personality and Social Psychology, 79(5), 793–815. https://doi.org/10.1037/0022-35126.96.36.1993