During a recent walk from Camphill Earthwork to the Necropolis with the esteemed Dr Ronnie Scott, we paused at the vast gapsite off Cathcart Road/Aikenhead Road to watch the foundations being laid for what’s known as the M74 completion. The road will plough through several communities in the city’s south east – Dalmarnock, Rutherglen, Polmadie and Govanhill – before joining the M8 at Kingston Bridge. Like its predecessor, the M77, the M74 extension is controversial. A public inquiry, started…