Building usage calendars ahead of Tet traffic

Tet traffic in the Delta is familiar to every shift supervisor, yet the written record is often a scatter of ticket comments. A usage calendar turns that memory into something you can hand to a new planner.

Pull hourly aggregates for the same districts across the previous two lunar new years. Place festival days in a distinct ink so ordinary Mondays do not blend into holiday evenings. Overlay retail promotion windows if commercial shared them—many collisions come from a data bonus launched on the same night as a maintenance window.

Keep the first calendar simple: voice and data only, three districts, one commentary page. Expand once the format survives a real briefing without constant verbal caveats.

When the pack is ready, walk operations through quiet hours, not just peaks. The valuable output is a shortlist of nights when cell load historically rests—those are the hours worth protecting for work that cannot wait until after the holiday.