City	Miles of Track	Passengers/Yr
1. London, England	253	976,000,000
2. Paris, France	134	1,365,000,000
3. Moscow, Russia	178	3,200,000,000
4. Madrid, Spain	142	-
5. Tokyo, Japan	-	2,800,000,000
6. Seoul, Korea	180	2,900,000,000
7. New York City, USA	-	1,800,000,000
8. Montreal, Canada	37.8	-
9. Beijing, China	71	-
10. Hong Kong	56	900,000,000