Shutter Speed and Everything After

From Lens Blog: 1) The photo had fast shutter speed because the picture has a truck in motion and it's clarity is very good

2) Rules of composition: Leading Lines and Rule of Thirds

3) Element of Art: Space because there is a lot of area between and around the trucks 

4) Principle of Design: Movement because the trucks are moving in the picture 

^ shutter speed: 1/120s