A work device (1) that performs work using a work unit (1a) while traveling, or a management system in which the work device (1) is incorporated includes: a travel information generation unit (31) that, over time, generates travel information indicating a travel state； a work information generation unit (41) that, over time, generates work information indicating a work state for the work unit (1a)； a travel evaluation unit (90c) that, based on the travel information and the work information, divides the traveling of the work device into non-work traveling and actual work traveling； and a data visualization unit (90d) that generates visual data according to which the result of the division performed by the travel evaluation unit (90c) is made visible.
