harg
Hertsmere (which I presume is the council for the area) calls it Brook Meadow in https://www.hertsmere.gov.uk/Planning--Building-Control/Planning-Policy/Other-guidance-and-information/Greenways.aspx which is dated 2020. If the current signage is different, then we could change it but you would need to upload a photo that confirms it. Or link to an official council document that confirms the change of name.