As the legal battle over NYC congestion pricing continues, new data is expected to show how much money the tolls have raised.

Congestion pricing is working, MTA officials said Monday, releasing data that showed the congestion pricing toll generated $48.7 million in gross revenue for January. The revenue data comes as the Trump administration seeks to kill the congestion toll by revoking a federal authorization given last year allowing the MTA to fund the capital plan with toll revenue.

MTA officials said congestion pricing has already reduced gridlock in Manhattan, one of the program's key goals. Travel times on every crossing into the congestion zone decreased between 10% and 30% on average in the first three weeks of the program, according to the agency.