Page 40 - Technical Document: Modelling Urban Carrying Capacity and Measuring Quality of Life using System Dynamics

UNITS: per year (1/yr)
: c Recharge_land_from_constructed_land = Total_Constructed_Land*.15
UNITS: hectares (ha)
: c Recharge_land =
(Recharge_land_from_constructed_land*Hectare_to_meter_square_convertor)+
(Usable_Open_Land*Hectare_to_meter_square_convertor)
UNITS: square meters (m^2)
: c Rainfall_in_meter_cube = Rainfall*Recharge_land
UNITS: cubic meters (m^3)
: c Rainfall_in_liters = Meter_cube_to_liter_convertor*Rainfall_in_meter_cube
UNITS: hectares-liters/hectare
: f Freshwater_regeneration = Infiltration_rate*Rainfall_in_liters
UNITS: l/yr
: c Fraction_of_water_causing_pollution = 1-Waste_water_collection&_treatment_fraction
UNITS: per year (1/yr)
: f Waste_water_resulting_in_environmental_pollution =
Fraction_of_water_causing_pollution*Consumed_Freshwater
UNITS: l/yr
: c Fraction_of_Solid_Waste_causing_pollution = 1-Solid_Waste__Collected_Fraction
: f Uncollected_solid_waste_resulting_in_pollution =
Fraction_of_Solid_Waste_causing_pollution*Generated_Solid_Waste
UNITS: kg/yr
: c Solid_Waste__Pollution_Fraction = 1-Solid_Waste_treatment_Fraction
: f Untreated_solid_waste_resulting_in_pollution =
Collected_Solid_Waste*Solid_Waste__Pollution_Fraction
UNITS: kg/yr
: f Increasing_pollution =
(Uncollected_solid_waste_resulting_in_pollution+Untreated_solid_waste_resulting_in_pollutio
n)+Waste_water_resulting_in_environmental_pollution+(CO2_emissions*.2)
UNITS: per year (1/yr)
: c Impact_of_environmental_pollution_on_out_migration = GRAPH(Pollution_density)
(1, 1), (1.66666666667, 1.1228668942), (2.33333333333, 1.29010238908), (3, 1.63139931741),
(3.66666666667, 2.43344709898), (4.33333333333, 3.67918088737), (5, 6)

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