On its way. 

The road lay wide with a load of cars traversing the track. They act towards same direction perhaps, and know that they are going to freeze when the gleaming red light strikes at them, yet each tries to outdistance the other somehow. 
While the cars stand packed before the commanding light, there breezed in a mismatched sound. Its the horse clip-clopping on the pavement, ignorant of the cars and the signalling light. It follows its steady route yet is unstoppable!