The location of the road cannot be changed without agreement of the dominant and servient tenements. In your case, the public is the dominant tenement. That also includes others that are not property owners abutting the road. That, I believe, means that a court would have to represent the interests of the public to come to any agreement to relocate the road.
It doesn't matter that the road is not described fully in deed or grant by the court.The general rule is that an easement may not be relocated without the consent of the owners of both the dominant and servient tenements. In Sibbel v. Fitch, 182 Md. 323, where it was contended that a road to a family graveyard had been relocated and used for thirteen years with the tacit acquiescence and consent of the defendants, we said (pp. 328, 329):
"When a right of way reserved in general terms has been definitely located and the owner of the dominant tenement has acquired vested right in the way as located, the general rule is that the location of the way can be changed only by agreement of the owners of the dominant and servient tenements.
Maryland common law is well settled in this regard.
You cannot impede the use of the road with calming devices. But without reading the full decision of the court, we can't say what you can or cannot do. You could likely be able to post signs (speed limit and no trespassing on the boundary).Sibbel v. Fitch, 34 A. 2d 773 - 1943
Once a general easement has been located and fixed by use over a long period of time, it becomes "as definitely established as if the grant or reservation had so located it by metes and bounds and the location of the right of way as thus defined can only be changed by agreement [.]"
While travel is not recreation, walking dogs, ride horses, jogging could be. But the public only has the right to the easement, not your property outside the boundary of the easement. They can travel across your property as long as they stay on the easement."road is "open to the public for travel",
You should consult with a local attorney who can read the court decision that granted the public the right to use the road. They can advise you about what your options may be.

