Google said they have begun offering mobile phone users in more than 30 major U.S. cities the capacity to view highway maps with “live” traffic data. The Mountain View company said that Google Maps for Mobile would allow mobile phone users to chose a destination within Google Maps and select “show traffic,” said Gummi Hafsteinsson, product manager of Google Maps for Mobile. Google Maps calculates the route to the location. Highway traffic information is sent to the phone, with road conditions highlighted in three colors: red for congested, yellow or orange for slowdowns, and green for smooth sailing.