Boston's most important industries are food production, including vegetables and potatoes; road haulage and logistics companies that carry the food; the Port of Boston, which handles more than one million tons of cargo per year including the import of steel and timber and the export of grain and recyclable materials; shellfishing; other light industry; and tourism. The port is connected by rail, with steel imports going by rail each day to Washwood Heath in Birmingham, and the port and town are also connected by trunk roads including the A16 and the A52.