Given that Sue Barr is head of photography at the AA School with a PhD specialising in readings of the modern motorway via the romantic lens of the sublime, her decision to leave the German in-laws on New Year's Day for a solo Ruhr road trip might look like a busman's holiday. Her book 'The Architecture of Transit' had already exposed her to the belly of the beast, with forays to document the shadowy, forgotten spaces beneath Italy's huge oversailing autostradas - where it all started - and Germany, where the type reaches its continental apotheosis.
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