Translate the following English sentence to French:
"In other words, while the Committee on Regional Policy, Transport and Tourism felt bound to remind the Member States of their obligations in terms of time limits and transposition, it must be admitted that the high-speed systems have provided a first-rate testing ground for the vast worksite of interoperability."
En d'autres termes, si la commission des transports a tenu à rappeler les États membres à leurs obligations de délai et de transposition, force est de convenir que la grande vitesse a constitué un banc d'essai de premier ordre du vaste chantier de l'interopérabilité.