A $135 million overhaul of MTA bus service took effect on this morning.

BaltimoreLink service began at 3 a.m. Sunday.

The MTA is replacing its decades old numbered bus lines with a dozen color coded lines that MTA officials say will improve reliability and better connect riders to Amtrak, Commuter Bus, Light RailLink, MARC Train, Metro SubwayLink and other services in Baltimore and the surrounding suburbs.

BaltimoreLink also includes about 5 1/2 miles of dedicated bus lanes through downtown Baltimore. Buses are also being given priority at traffic lights to hold green lights or shorten red lights, depending on the volume of bus traffic. Quinn says there are also improved bus connections at at MARC, Metro and Light Rail stations.

"We want to create a system that is manageable, that the bus shows up on time, when riders want it to show up," Quinn told Maryland's News This Week.

The system is the product of 19 months of community meetings, and a marketing effort by the MTA. 

Quinn also says bus drivers have been learning the new routes.

Gov. Larry Hogan announced the creation of the new system in 2015 after announcing the state would not move forward with the nearly $3-billion Red Line light rail project, which the governor saw as too costly.

Quinn says starting Sunday and continuing through June 30, passengers can ride the buses for free, as away to promote the new system.