The are new black, white and red maps and signage at stops across the city, focusing on routes in red that run more frequently than the standard routes in black and white.
"So far, at least the routes that I take, are fairly efficient. I guess the 27 could come a little bit more often," said rider Kerry Maybank.
RELATED: SEPTA urges riders to check routes as major bus network changes begin
SEPTA crews worked early Monday to finish putting up the new signs at the Wissahickon Transit Center.
In all, 13,000 signs are up across the city.
The red is supposed to pop so you can quickly spot the route numbers, indicating which buses will run more frequently.
Some buses will run every 15 minutes from 6 a.m. to 9 p.m. during the week, and others every 30 minutes with enhanced weekend schedules.
The rollout started Sunday with some riders adjusting better than others.
"I think they're listening to the people and listening to what works and doesn't work and I just think it's a great benefit," said rider Tosha Hays-Jones.
RELATED: Riders react to route changes as SEPTA launches new bus network
"I think the new bus route is ridiculous," said rider Aaliyah Ferguson. "Half the time the busses break down, the train breaks down, and then the buses don't be having air. They want us to pay the money for the bus and then ya'll taking buses we really need."
Phase 1 of what SEPTA is calling its New Bus Network includes seven discontinued routes, two new ones, 13 route changes, and several extensions.
SEPTA says the goal is have shorter wait times, make it easier to get around while helping passengers make transfers on time.
SEPTA will have ambassadors on hand across the city to help out.
Phases 2 and 3 are scheduled to begin in February and June of next year.