Aspyr announced today that the Mac version of SimCity 4 Rush Hour is now shipping and will be available in stores nationwide by October 1. The latest expansion pack for SimCity 4 allows players to take control of their city’s transportation with a wide variety of new options. They can create the elevated train networks of Chicago, the wide-avenues of New York, or the one-way streets of San Francisco. Players can develop a seamless mass-transit system including monorail, subway, or even a scenic ferry service that connects to a greater regional travel network. The title is priced at US$29.99.