Pink Bus: The Zigzagging House

Pink public buses are operated by entrepreneurs. Sometime they are called the "Bus Mafia". The driver’s 6-years-old daughter sleeps on the front bench while his wife collects tickets. The bus serves as a moving house for many families – a house with many visitors. However, this is far from a family business. The driver and his family do not own the bus nor have any shares in the company; they worked for the "Bus Mafia"; being paid a bare minimum wage of $26 per day.

It has a wooden floor -- like the Kalashnikov rifle -- to absorb shocks from various potholes in the street. In hot tropical climate, ceiling fans are also provided along with operable windows.

These buses move in zigzagging motion. To avoid street carts and illegally parked cars, the buses tend to gravitate towards the far-right fast lane of the road. When traffic jam is especially bad, the amplitude of the wave appears to be larger.

When zoomed out far enough from the street, with shorten ‘x’ axis, the buses path starts to approach the wave function. One could approximate the position of the buses on the street if given the length of bus stops (wavelength).

Curiously, the zigzag motion is almost similar to sailboats trying to navigate against the wind -- but in this case it is traffic jam.