Christ almighty, why can you just not accept that I didn't understand it? I wasn't arguing with them, I wasn't looking for a loophole, I simply didn't understand the way it was laid out.The paragraph heading (in bold) explains that the restriction applies to the lengths of road specified in Schedules 4f.
The text (not in bold) contains two types of restriction, separated by the word "and" in the fourth line.
It may be formal but it's perfectly good English.