 As a result, 13 years after its opening the line is saturated - peak hour lasts longer and longer, and the opening of Line B (2007), Line E (2009) and various exclusive bus lanes will bring additional traffic flows on to Line A and suggests that the use of Line A will become increasingly uncomfortable.Short platforms are being lengthened and longer trains are expected to serve the whole line by late 2019.A 5 km northern extension to L'Union is also under study by the year 2030.