Shutter speed and everything after

1.I think this picture used a fast shutter speed because there is no blurriness in the picture and everything is very crisp.
2.Leading lines is the concept that I think of when I look at this picture because of the rectangular shape of the trucks and the flat lines of them lead my eyes down the picture.
3.The lines of the trucks are really emphasized in this picture.
4.The separation by the guardrail straight down the middle and the trucks evenly spaced out is a a good example of proportion.

Shutter speed 1/500