Metra is adding service on three lines beginning Monday to accommodate increased ridership as more people return to the city for work and for pleasure. Trains will be added the BNSF, Milwaukee District North and North Central Service lines.
Metra adding trains to three lines as ridership increases. See story here. https://chicago.suntimes.com/2021/4/6/22370136/metra-adding-trains-three-lines-ridership-milwaukee-district-line-north-central-service-bnsf