Metro matters

It has taken a little over four years and the Chennai Metro appears to be on track for taking on the first set of passengers early next year. Put together, the two corridors will have a tad over 45km of track, of which 24km would run underground. This is a picture of a section of Corridor 2 (Central to St Thomas Mount), between Arumbakkam and Vadapazhani. A map of the corridors can be seen here. 

How may stations does the Chennai Metro have? That was a question at the Madras Quiz, to which many teams knew the answer (no, we did not). Each of the corridors has 17 stations. Another question was to identify which is the only station common to both corridors - that's the Alandur station, near the airport (which we knew). But the correct answer to the first question was given as 32 - which doesn't add up.

One explanation is that the number would depend on how you count the stations. Going by their names, there are only 32. Apart from Alandur, the other common name is Central Metro; on the map, however, the corridors show distinct stations, so if we were to go by that count, there would really be 33 stations. 

And then, there would be some who might insist on adding up the stations and claiming that there are actually 34!