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Sports Illuminance Uniformity

Calculates reduced sports lighting performance using aggregate luminaire flux, utilisation factor, maintenance factor, and grid extrema. The template reports average horizontal illuminance, U1 and U2 uniformity ratios, and margins against target lighting class values.

inputs

10 fields

context

2 archetypes

engine

with-tool

outputs

5 scored fields

contract fields

Parameter Map

10 inputs to 5 scored outputs

  • field_length_m

    float

    Sports field length

    10 to 200m

  • field_width_m

    float

    Sports field width

    10 to 120m

  • luminaire_count

    float

    Number of luminaires

    4 to 300count

  • luminaire_luminous_flux_lm

    float

    Luminous flux per luminaire

    10000 to 250000lm

  • utilisation_factor

    float

    Field utilisation factor

    0.2 to 0.8-

  • maintenance_factor

    float

    Lighting maintenance factor

    0.5 to 0.95-

  • minimum_illuminance_lux

    float

    Minimum grid illuminance

    0 to 2000lux

  • maximum_illuminance_lux

    float

    Maximum grid illuminance

    1 to 5000lux

  • target_average_illuminance_lux

    float

    Target average horizontal illuminance

    50 to 2000lux

  • target_uniformity_u2

    floathidden in hard

    Target U2 uniformity ratio

    0.1 to 0.9-
average_horizontal_illuminance_luxtol 0.03

Average horizontal illuminance

uniformity_u1_min_maxtol 0.03

U1 uniformity ratio, minimum divided by maximum

uniformity_u2_min_avgtol 0.03

U2 uniformity ratio, minimum divided by average

average_illuminance_margin_pcttol 0.03

Average illuminance margin against target

uniformity_u2_margin_pcttol 0.03

U2 uniformity margin against target

visibility contract

Difficulty Ladder

all_giveneasy

Community sports field with all values visible

all fields visible
all_givenmedium

Sports lighting case selected from community or stadium fields

all fields visible
partialhard

Stadium field with target U2 embedded in context

target_uniformity_u2

scenario bands

Archetype Atlas

community_field

2 contexts

Community sports field lighting

field_length_m40 to 110
field_width_m25 to 70
luminaire_count8 to 48
luminaire_luminous_flux_lm40000 to 160000

community-sport / field-lighting

stadium_field

2 contexts

Stadium field lighting

field_length_m90 to 120
field_width_m50 to 80
luminaire_count40 to 240
luminaire_luminous_flux_lm80000 to 220000

stadium / field-lighting

rendered task

Generation Preview

stadium-stadium-field-preview

difficulty
hard
visibility
partial
archetype
stadium_field
site context
stadium
instruction excerptsports-illuminance-uniformity_calc.py

visible fields

  • field_length_m90 to 120 m
  • field_width_m50 to 80 m
  • luminaire_count40 to 240 count
  • luminaire_luminous_flux_lm80000 to 220000 lm
  • utilisation_factor0.45 to 0.75 -
  • maintenance_factor0.7 to 0.9 -
  • minimum_illuminance_lux300 to 1200 lux
  • maximum_illuminance_lux600 to 2500 lux
  • target_average_illuminance_lux500 to 1500 lux

withheld schema

target_uniformity_u2average_horizontal_illuminance_luxuniformity_u1_min_maxuniformity_u2_min_avgaverage_illuminance_margin_pctuniformity_u2_margin_pct
Stadium field lighting. stadium. Required outputs: average_horizontal_illuminance_lux, uniformity_u1_min_max, uniformity_u2_min_avg, average_illuminance_margin_pct, uniformity_u2_margin_pct