Station Commercial Opening Dates

Inauguration (commercial opening) dates for São Paulo metro stations, covering stations whose opening falls within or near the station_daily / station_averages window. Used to flag ramp-up periods in which monthly ridership is still climbing toward steady-state and should generally be excluded from year-on-year or baseline comparisons.

Usage

station_inauguration

Format

A data frame with one row per (line, station):

line_number: Metro line number (integer).
station_name: Full station name (character).
inauguration_date: Date of commercial opening (Date). NA for stations whose opening predates the dataset window (i.e., they were already operating when the data record begins).
phase: Short label identifying the expansion phase, e.g. "L15 Fase 4" (character).
verified: Whether the inauguration date has been cross-checked against the operator's announcement or an equivalently reliable source (logical). Stations with verified = FALSE carry best-effort dates and should not be relied on for legal or publication purposes without re-checking.
notes: Free-text annotations about the source or any caveats (character, possibly NA).
pre_data_window: TRUE when inauguration_date is NA because the station opened before the data starts (logical).
ramp_up_end: inauguration_date + 180 days — a heuristic end of the initial ramp-up period (Date). NA when pre_data_window is TRUE.

Source

Compiled from operator announcements (Companhia do Metropolitano de São Paulo, ViaQuatro, ViaMobilidade).

Details

The table is assembled by data-raw/build_station_inauguration.R from data-raw/station_inauguration.csv. To extend the table or verify uncertain dates, edit the CSV (setting verified = TRUE once cross-checked) and re-run the build script.

Suggested use: when computing pre/post comparisons (e.g.\ 12m-vs-prior-12m or recovery-vs-2019), exclude stations where either window overlaps ramp_up_end to avoid mistaking ramp-up growth for organic demand change.

Usage

Format

Source

Details

See also