In Ghana’s capital city, Accra, a commotion stirs along the train tracks near the central railway station. Dozens gather to hear the news - that soon, their homes and workplaces will be razed for a new rail system. 'Last year we came to warn you to leave the railway lands. Last week we came again. And today, too, we have come,' Accra’s mayor, Alfred Vanderpuije, tells the crowd in Twi, a local language as he tours the site. 'I can’t tell you if I will come tomorrow or tomorrow next. But we will come and we will demolish all of the structures.'