centerline

It is particularly confusing when the motorist is channelized across the highway centerline. For long-term closures conflicting pavement markings must be removed or obliterated before relaning the roadway.

You might already know that, I don't know, but since you are training at home I didn't want you to be weaving wildly on each side of the rope - the goal is to pop up as tight as possible to the center line.