Why is the blue word on the stop sign of Lanzhou Railway Station short at the bottom?

The calligraphy style of "the father of bamboo slips" is just so. In the eyes of calligraphers, "Lan" itself is a simplified word that has been changed. There is no question of which is long and which is short. They generally admire the traditional Chinese characters handed down by the ancients and think that they are characters with character. Perhaps the "pride" brought by calligraphers also comes from this. Friends at Lanzhou Railway Station saw the word "Lan".