Why the number of features is 2 for each station?

[Bo Hui]

X = X.transpose((1, 2, 0))
Why the number of features (observation) is 2 at a specific time for each station?

[love-freedom777]

X = X.transpose((1, 2, 0))
Why the number of features (observation) is 2 at a specific time for each station?

老哥知道为什么是2了吗？我也不是很懂，请教一下。是不是可能每条路有两个方向的速度值？