Miami commuters, brace yourselves. You'll likely experience some travel headaches in the coming years. A massive, four-year, $800 million highway reconstruction project in Miami started on Monday. Once finished, commuters driving in and out of the city can expect a double-decker freeway stretching from Interstate 95 to the MacArthur Causeway, 30-acres of urban parkland and a six-arch suspension bridge in the city's downtown. The project will be paid for by the Florida Department of