The Maps app now includes an important tool for travelers. Now, whenever there is construction ahead, or near you, you'll see a Roadwork sign. Clicking on this will give you more information on the work being done, including the project's start date, and description. In addition, the Maps app includes a new zoom feature. Using it, drivers can see street names fading in and out.
With each beta of iOS 6, Apple has been improving the Maps app and adding functionality. In the last beta Apple expanded the number of cities with 3D support.