The Purple Line, under construction at photo time, follows Campus Drive
under CSX and Metro. The line is a mostly surface-rail project of Maryland
to connect Bethesda and New Carrollton. Trains might be running by 2025.
As much as I enjoy railroads, I question whether there is sufficient demand
for the Purple Line to justify its cost. Its $5.6 billion price tag divided
by the 130 million trips expected during the system's 30-year life span
equates to a per-trip cost of $42. I doubt many people would ride the 16.2
mile long Purple Line if its fare were $42.
Purple Line official site