line 10 is a secondary line on the parisian network, and the number of total passengers amounts to only a little more than a quarter of the total passengers of line 1. line 10 is the least-traveled line on the network, with the exception of the short 3bis and 7bis lines. between 1992 and 2004, traffic has grown a total of 4.7%, which puts the line in 8th place in terms of growth (behind line 14).