Uzumasa Station employs "Issen-through," the system of speeding up the prioritized train of two trains, which come from both ends of a single track, by limiting the prioritized train's running line to one track of the specially equipped double track in the station; to promote passenger convenience, some local trains for Sonobe Station that don't wait for another train to go first at this station and all local trains for Kyoto Station stop at Platform 1, which faces the subsidiary main track and adjoins the station building.
一線スルー配線になっており、乗客への利便性向上のため京都行きの普通列車全列車と、当駅で行き違いを行わない園部方面の普通列車は、副本線である駅舎側1番ホームに停車する。