Google have done it again, adding a feature they call “transit layer” to their google maps and google earth products.

A suitable overlay is added when the “transit” layer is added. Whilst coving London, there are many other cities that now get the same treatment.

Google Transit Layer Example

Google Transit Layer Example

Full details can be found here: http://google-latlong.blogspot.com/2009/01/new-ways-to-get-around-with-transit.html.

At last, we can now easily see that the circle line, is in fact, not a circle.