Google has added a new “Transit Layer” to their Google map, helping users to easily find public transport in their city. Currently Google has added the transit layer in Google map for only 50 cities across the globe. To switch on the layer go to the More button and select the Transit tab:
If you want to book a hotel or make a restaurant reservation you can switch on the Transit Layer and look for the public transport line nearest to the location. If you want to travel from A to B you can quickly familiarize yourself with the public transport network and find out which lines to use and where to change.
The transit layer is a part of Google transit product has the goal to provide full schedule information and routing, the objective of the Transit Layer is to overlay lines visually on Google Maps.
Google has also posted a really good video to how to plan your public transport with Google transit
Visit Google Transit Website