why push people to take public transport?

Below is my article.

Why push people to take public transport?

The Transport Minister wants our public transport system to be world class. And one of the measurements of a world class transport system is the number of commuters. This has gone done from 67% in 1997 to 63% in 2004, which is bad news to him. So must push more people to use public transport.

But then people are getting richer and