BETHESDA, Md. (AP) -- Gov. Martin O'Malley is scheduled to announce a transportation investment package for Montgomery County.
The governor will be joined by Lt. Gov. Anthony Brown and Montgomery County Executive Isiah Leggett in Bethesda on Monday.
The governor's office says the event will include an announcement regarding the Purple Line.
The Purple Line is a planned 16-mile light rail line with 21 stations between Bethesda and New Carrollton. It's estimated to cost about $2.15 billion. It could be built by 2020.
Montgomery County has some of the worst traffic congestion in the state. O'Malley and lawmakers cited the choking traffic as an impediment to economic development and quality of life when they pushed for a gas tax increase in the last legislative session to help pay for projects like the Purple Line.