This is the 9565th most frequent Japanese word.
縦列
"縦列" means "vertical row" or "column."
In this sentence, "縦列" is part of the term "縦列駐車", which refers to the parking of a vehicle in a parallel arrangement.
自動車を縦列駐車するのは難しいです。
Parallel parking a car is difficult.
Here, "縦列" describes the configuration of the line the patients formed, emphasizing its longitudinal arrangement.
縦列に患者が並んで待っている。
The patients are lined up in a row waiting.
In this example, "縦列" indicates the arrangement of data in vertical columns, focusing on organization patterns.