Punctuality in Cali...Columbia.

German engineers trekked to Cali Columbia, a place made famous at least in America by drug cartels, to fix up the transportation system in order to make it more punctual.

The fight between good and evil is represented by the colors green and red, at least that is the way Miguel Castro sees it. Castro is a bus driver in the Colombian metropolis of Cali, and the two colored lights on his dashboard tell him whether he is behind schedule or not. For Castro the panel of lights is a small revolution. Prior to their arrival, there were only the timetables to rely on -- treated by drivers more as a broad recommendation than as hard and fast rules.

H/T Planetizen