On Saturday, the trip required another half-hour - and two additional trains.
When the number of passengers requires it, additional trains may be added also.
As from September 1855, an additional mid-afternoon train was provided each way.
An additional 4,000 train and 3,400 bus services had been commissioned for the event.
A limited service operates on Sundays with additional trains during the summer months.
An additional train now operates on the line meaning services average around every 40 minutes.
The 2007 contract included an option for 40 additional trains.
There are some additional trains on all these lines during peak hours.
Total capacity will increase by eleven additional trains per hour in each direction.
There were additional trains in both the morning and evening peaks.
