Dear Roosevelt Island Community:   Please be advised that beginning Wednesday, January 28, one elevator in Motorgate’s south elevator bay will be taken offline to accommodate upgrades to the elevator control system. The elevator taken out of service is expected to remain offline for approximately five weeks.   While this work takes place, the other elevator in the south bay will remain in service.   Upon completion of this work, RIOC will schedule similar upgrades for the second elevator. Thank you for your patience and understanding as we complete these necessary improvements.   — RIOC Capital Projects & Planning