expression, godan verb (-mu)
gain experience; get used to a place or situation
Rare expression; literally 'to step on a place', used figuratively for becoming familiar with a location or field through repeated exposure.
彼は何度も現場に足を運び、場所を踏んでから本番に臨んだ。
He visited the site many times, got familiar with the place, and then prepared for the actual performance.