This resulted from a measure taken for the neighboring Kintetsu-Miyazu Station located in the direction of Saidaiji having been treated as a signal station (Miyamaki Signal Station) at the outset, when Miyazu Shako depot was established, but soon thereafter said signal station was upgraded to a railway station and as such it created a need to install additional directional screens from the introduction of regional semi-express trains on the Nara Line emanating from the timetable revision of March 2006, thereby eliminating the two aforementioned screens.
これは、西大寺方に隣接する近鉄宮津駅が宮津車庫設置当初は信号場扱い（三山木信号所）であったことによる措置だが、ほどなくして同信号場は駅へ昇格し、2006年3月のダイヤ改正で奈良線に区間準急が登場した事による方向幕追加の必要も生じたため、この2つの幕は消滅した。