Speaking of which, there is a long stretch of road around Swaythling/St Denys (Thomas Lewis Way) that was build in the 80s. following the railway closely. Out of interest, does anyone know what it was before the road?
Without any old track diagram references I couldn't say if there were any additional parallel tracks along here.
According to pathetic motorways the route of the road mentioned was planned to be part of the abandoned M272 Portswood Link
http://pathetic.org.uk/unbuilt/m272/
I would expect the width required would have been safeguarded for that purpose and opportunities taken to acquire parcels of land progressively along the route over many years.
Without any old track diagram references I couldn't say if there were any additional parallel tracks along here.