I took these pictures on a winter afternoon, when people started going back home. I went to one of the most important roads in Barcelona (Diagonal Avenue), as you can see plenty of office buildings, and stood there with my tripod. I took them all during a 30 second exposure.
The firse one shows the movement of cars; the second one is a taxi which turned the right indicator on; and the third one a bus on the lane next to me.
Images by Muffins in my backpack.