Google announced in late June that it has added public transit data to its Maps API, allowing third-party developers to provide their website and mobile users with public transit routes, color-coded transit layers and schedules to the company locations.

Transit routes will include the number of stops, direction of travel and type of vehicle. For example, for a car rental company, the Transit Layer allows you to show all the major bus transit lines that run past each of your locations.

For questions about Google Map API coding, go here: https://developers.google.com/maps/documentation/javascript/forum