Metro appears to be the transport buzz word of the moment:

Brisbane Courier Mail:
Designer advises Brisbane to go underground for metro rail

Sydney Morning Herald:
Bye heavy rail, now for a north-west metro

The “Eddington Report” from Melbourne:
melbourne metro -‘new generation’ rail tunnel (warning PDF)

But what is a metro anyway?

The dictionary defines it as

metro

• noun (pl. metros) an underground railway system in a city, especially Paris.

So, quickly now, which of the following is doesn’t have “metro” anywhere in its name? (I’ll accept two or three in the answer)

1.

2. (please excuse gratuitous picture of me)

3.

4.

5.

6.

7.

Answers next time – and with it some rational discussion on why it matters.

(for images 1, 4, and 6 I am indebted to Wikimedia Commons, and in particular photographers Chris McKenna and “Pline”)