Why UK roads are so clogged

The next time you are stuck in traffic, meditate on the following facts:

Back in 1971, half of all households didn't own a car. Today, it is less than a quarter.

Over the same time, two car households has increased from 6 percent to almost 30 percent.

In 1971, it was almost unknown for households to have three or more cars. Today, six percent of households have a fleet of at least three cars parked outside the house.

Add to this, population growth, and limited road construction, and you have the perfect recipe for massive road congestion.