Translate the following English sentence to French:
"The bulk of the traffic from this explosive growth in internal mobility, which is expected to be consolidated in the next few decades, has been acquired by road systems and, secondarily, maritime cabotage via the North Sea."
De cette croissance explosive de la mobilité intérieure, qui devrait se confirmer dans les prochaines décennies, c'est la route, accessoirement le cabotage maritime en mer du Nord, qui ont capté l'essentiel du trafic.