Someone inform me differently, perhaps Dosser as he's been around for decades longer than me. When part of the old pop side was demolished wasn't the rubble from it dumped there ? In all honesty the area in question is nothing but an eye sore & is long over due a make over.
If & when both the pop side & railway end are redeveloped then access to this land would surely be needed in order for demolition & new materials being brought in.