int_field_pace_curve

Field-level baseline pace curve.

Part of the Pace Baselines family.

Field-level baseline pace curve. Grain is (race_year, race_id, lap_number). A 10% trimmed mean of fuel- and compound-corrected clean-air lap times at each lap number, smoothed with a 5-cell centred rolling mean, to establish a baseline uncontaminated by individual driver skill or traffic. CO-04: the smoother stays inside one green segment (it does not cross an SC, VSC or red flag); the first two green laps after an SC or red flag take their own trimmed mean; a cell built on fewer than 5 cars has no base and feeds no neighbour. Only laps known to be in clean air enter (an unmeasured air state, FD6, does not), so 2018_1 Australia and 2018_2 Bahrain, which have no telemetry in bronze, are EXCLUDED FROM THE FIELD BASE: every cell there is thin, no lap has a base, and both races lose their residuals and training labels for that reason (owner decision 2026-10-15).

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Lineage

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Overview

Property	Value
Layer	intermediate
Family	Pace Baselines
Contract enforced	No
Upstream	int_lap_fuel_state, int_stint_geometry, int_lap_air_state, int_compound_cliff_predicted
Model-level tests	unique_combination_of_columns

16 tests guard this model - 8 generic, 8 singular.

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Columns

Column	Type	Nullable	Tests	Description
race_year		Yes	not_null	Race year
race_id		Yes	not_null, relationships	Race identifier
lap_number		Yes	not_null	Lap number within race
field_pace_smoothed_s		Yes		The field base, seconds. NULL when low_sample_flag is set (W44), and so on every lap of 2018_1 and 2018_2 (FD6). Equal to field_pace_trimmed_mean_s on a neutralised or restart-adjacent cell; otherwise the mean of the non-thin trimmed means from smoothing_window_first_lap to smoothing_window_last_lap.
low_sample_flag		Yes	not_null	TRUE when fewer than 5 eligible laps built the cell. Such a cell has no base.
is_neutralised_lap		Yes	not_null	TRUE when any driver’s lap at this lap number carries an SC, VSC or red flag (int_stint_geometry). Neutralised lap numbers split the smoother into green segments (W43), and a neutralised cell averages only itself.
is_restart_adjacent_lap		Yes	not_null	TRUE on the first two green lap numbers after an SC or red-flag lap (not a VSC). Such a cell’s base is its own trimmed mean and it is in no other cell’s window, because the restart laps run slower than the green laps after them (-1.04 s and -0.49 s of smoothing bias before CO-04 gave them their own mean). Asserted by assert_field_pace_restart_cells_own_mean.
smoothing_window_first_lap		Yes		Lap number of the first cell averaged into field_pace_smoothed_s; NULL when the base is NULL. With smoothing_window_last_lap it makes the W43/W44 rules checkable from the output (assert_field_pace_smoothing_respects_boundaries).
smoothing_window_last_lap		Yes		Lap number of the last cell averaged into field_pace_smoothed_s; NULL when the base is NULL.