Chugging through townships, maize fields and scrubland as the sun rises, Zimbabwe's only commuter train is cheap and reliable -- two qualities that its passengers cherish in a downwards-spiralling economy.Each morning sleepy travellers walk to the tracks and clamber aboard before the train leaves the Cowdray Park settlement at 6:00 am on its 20-kilometre (12-mile) journey into Bulawayo, the country's second city.
