Eurostar offers a typical load of 2tph (occasionally upto 4tph) in each direction between Cocquelle (French end of the tunnel) and Fretin Triangle (where the Brussels service goes north and the Paris service goes south).DB might add another tph in each direction to the mix. From thence the load offered by Eurostar on the LGV Nord Line is typically 1tph in each direction with very occasional 2tph. DB might add one more tph to the north from Fretin Triangle when its Frankfurt service materializes. We are a long long way from needing another pair of tracks. LGVs can typically handle 12 to 15tph in each direction. The French have also become considerably more stingy with funding new LGV since the more recent additions are not even recovering their operating cost fully, let alone pay down their capital. But in any case, it is not Eurostar traffic that will cause the Lille to Paris direct link to be built, but it will be growth of Thalys traffic and traffic to Lille and other destinations in northern France. Eurostar load is noise in the mix.
Edited by jis, 06 February 2016 - 12:21 PM.