Two new transit map services debuted this week from the CTA and Google that make it easier for riders to plan their trips. Google has added Chicago to the growing number of cities it offers public transit trip planning for on Google Maps -- allowing riders to use the familiar interface to plan their rides. A great added feature is that it provides an estimated cost comparison for the trip by transit and driving. My work commute at $2.00 per train trip came in as a cost savings over driving at $2.25 per trip. It would be wonderful to see a carbon calculator added in as well for driving and transit directions.