The work includes the creation of a bypass north of the Belmont station that will replace an inefficient, 112-year-old junction where the Red, Purple and Brown lines intersect, allowing trains to run more frequently. That will improve capacity not just on the North Side, but throughout the CTA rail network. Right now, the configuration is a rush-hour nightmare, with Red and Purple Line trains having to stop to allow Brown Line trains through. Securing the TIF money also allowed the city to get federal funding that will pay for roughly half of the project’s price tag. To qualify for the federal dollars, the city had to show that it could match that money from its own coffers.