TRAX is operated by the Utah Transit Authority, or UTA. Google Maps already includes UTA schedules, but users will now be able to get live departure and arrival times that account for variations in the schedule due to delays. The same system also tracks Salt Lake City's buses and FrontRunner trains. The new service is available to all iPhone and Android users by downloading Google Maps to the device. However, there is no equivalent app available for desktop or laptop computers.
Google Maps already incorporates UTA's schedule, but the new change means the software will now reflect live departure times in that schedule. Google official Sierra Lovelace says UTA provided Google with a live feed of its master control system, which keeps track of buses and trains on a minute-by-minute basis.
Google Maps already provides similar services in a number of other cities. The above picture shows Brooklyn, New York but the Salt Lake City display will be similar.
You can find more information about this new service on the Google Blog at http://goo.gl/xYCJS.