The first weekday of Metro’s SafeTrack Surge #14,  on the northern end of the Green Line, has been relatively trouble-free, area transportation officials say.

“Things have been going smoothly today,” said Anna McLaughlin, assistant director of the University of Maryland’s Department of Transportation Services.

The first stage of of the project started Saturday and continues through April 29. During this phase, Greenbelt and College Park stations are closed to train travel, and will instead be served by shuttle buses that will carry people between the shuttered stations and on to Prince George’s Plaza station. The second phase of the surge is scheduled to begin April 30, when only Greenbelt station will be closed.

In anticipation of the surge, U-Md. officials chose to reroute some shuttle buses to provide a connection between campus to Prince George’s Plaza station, where students and faculty can connect with the Green Line. McLaughlin said about 600 people rode the shuttle between 7 a.m. and noon Monday — lower numbers than typical weekday morning ridership on the shuttle that usually runs from campus to College Park station.

According to Metro spokeswoman Sherri Ly, Metro’s own shuttle buses carried about 1,600 people during the Monday morning peak period.

Metro opted to shut down the northern stretch of the Green Line in an effort to maximize productivity for repair crews, as well as limit delays and disruptions to the rest of the line. The transit agency also canceled Yellow line “Rush-Plus” service for the duration of the surge — a move that has drawn frustration from some riders.