That must be a typo. It is a public road with a speed limit of 30 mph. That might explain why https://www.plotaroute.com/ didn't want to plot a route along it!
There is one other change that needs doing and I don't know how to do it. The eastern end of Wheelers Lane is now No Entry from Redehall Road. To confirm Wheelers Lane is two-way traffic but just No Entry from Redehall Road.