Final answer:
During the Intermediate Stage of the GDL program, a new driver can drive unsupervised with restrictions. This follows the Learner's Permit Stage and includes restrictions like limited driving hours.
Step-by-step explanation:
The stage of the Graduated Driver Licensing (GDL) program at which a new driver is generally allowed to drive unsupervised, but with restrictions, is the Intermediate Stage. After successfully completing the Learner's Permit Stage, where the new driver must drive under supervision, they can move on to the Intermediate Stage. This stage still comes with certain restrictions such as no driving during late night hours or a limit on the number of passengers to help reduce risks and allow the new driver to gain experience under less risky conditions.