Google Launches Traffic Data for Major City Streets

We knew it was coming and today it became official. Google Maps has added real-time traffic data for major streets on Google Maps. "[It] will now show you live traffic conditions on arterial roads in selected cities. Just zoom-in on the city you're interested in, and click the 'Traffic' button in the upper-right corner of the map. As you zoom in closer to an area of interest, we'll color the arterial roads, in addition to the highways, to show current traffic conditions," explained Google LatLong, the company's official maps blog. "Just as with the highways, the colors correspond to the speed of traffic (relative to the speed limit of the road): green is free sailing, yellow is medium congestion, red is heavy congestion, and red/black is stop-and-go traffic." And yes, it works on the iPhone.