Function Value

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This article is a stub.

Function values are specific values which form the general properties of any construction with a specific function. A function has many function values, and any construction of that function also has those function values.

Function values can be changed for an individual construction, or for a function, which in turn would affect all constructions of that function.

Category values

Some function values are construction-related, and some function values are category-related. The difference between them is only applicable if a single function consists of multiple function categories. For example, the function value indicating the maximum amount of floors for the construction is related to the construction as a whole. However, if the function contains both social housing and luxury housing, the individual types of housing can have different unit sizes configured, as one type of housing may offer bigger housing units than the other.

Overview of all function values

Most function values have specific effects in the context of the Tygron Platform. Individual function values can be grouped into categories based on their effects or themes.

Name

Function value Attribute Unit Per category Description
Name (Property of function value) text The name of the Function.

Assets and visualisation

Function value Attribute Unit Per category Description
Image (Property of function value) Image (png, 200x100) The image used to represent this function. This property is currently unused.
Roof Color ROOF_COLOR color The color of the roof of a construction. For flat constructions (such as gardens and roads), it is also the color of the ground surface.
Ground Color GROUND_COLOR color The color of the walls of the bottom floor of a construction.
Extra Color EXTRA_COLOR color The color of the walls of the floors of the construction which are neither the top nor bottom floor.
Top Color TOP_COLOR color The color of the walls of the top floor of a construction, unless that floor is also the bottom floor.
Description (Property of function value) text The textual description of this function, which is displayed to the user when using this function as as action.

Construction

Function value Attribute Unit Per category Description
Category weight CATEGORY_WEIGHT weight Yes How much of a construction of this function is classified under the specified category.
Construction time in months CONSTRUCTION_TIME_IN_MONTHS months How long it takes to construct a construction of this function during a timeline session.
Default floors DEFAULT_FLOORS integer How many floors a construction of this function will have by default, unless otherwise specified. When using this Function as an Action, this is the default amount of floors created, unless the user changes this setting while performing the Action. This values must always be in the range of min floors and max floors (inclusive).
Demolish time in months DEMOLISH_TIME_IN_MONTHS months How long it takes to demolish a construction of this functon during a timeline session.
Floating FLOATING boolean Whether this construction should be visualized with a "floating" animation, as if on water.
Floor height m FLOOR_HEIGHT_M m The height of each floor of the construction.
Max floors MAX_FLOORS integer The maximum amount of floors this construction (or any of its sections) can have. This also limits how many floors a construction can have when used as an action during a session.
Min floors MIN_FLOORS integer The minimum amount of floors this construction (or any of its sections) should have. This also limits how many floors a construction must have when used as an action during a session.
Monumental MONUMENTAL boolean Whether this construction is monumental. Projects can be set up so that monumental constructions enjoy special protections or have additional qualitative value.
Slanting roof height SLANTING_ROOF_HEIGHT m How high the slanting roof at the top of the construction should be visualized at its peak. The roof will slant inwards equally from all sides. This is a visual effect only, but it is possible to reference this value in custom calculations.
Unit size UNIT_SIZE_M2 m²/unit Yes How large a single housing unit within this construction is. This is only relevant for residential categories.
Zoning permit required ZONING_PERMIT_REQUIRED boolean Whether the municipal stakeholder should be requested permission, when another user uses this function as an action to plan a new construction during a session

Environment

Function value Attribute Unit Per category Description
Critical infrastructure CRITICAL_INFRASTRUCTURE boolean Whether this construction counts as critical for Water Overlay calculations. See also: Critical structure (Water Overlay)
Distance zone DISTANCE_ZONE_M m The distance drawn in the Distance Zone Overlay by this construction.
Disturbance distance DISTURBANCE_DISTANCE_M m The distance drawn in the Disturbance Distance Overlay by this construction.
Green space GREEN_M2 m²/m² The amount of green which this construction provides per m² created. Generally, this number is used along with the constructon's footprint, rather than its total floor size.
Heat effect HEAT_EFFECT °C The effect this construction has on the Heat Overlay calculations.
Livability effect LIVABILITY_EFFECT decimal The effect this construction has on the Livability Overlay calculations.
Safety distance SAFETY_DISTANCE_M m The distance drawn in the Safety Distance Overlay by this construction.

Financial

Function value Attribute Unit Per category Description
Buyout cost BUYOUT_COST_M2 currency/m² Yes How much it costs, in addition to the demolition costs, to demolish this construction during a session, when the construction is not vacant. These costs are due to eviction or buyout of existing tenants.
Construction cost CONSTRUCTION_COST_M2 currency/m² Yes How much it costs to create a new construction, when using this function as an action during a session.
Demolition cost DEMOLISH_COST_M2 currency/m² Yes How much it costs to demolish this construction during a session. If the construction is not vacant, the buyout costs are applicable as well, in addition to the demolition costs.
Sell price SELL_PRICE_M2 currency/m² Yes How much revenue is generated for the owner, when a construction of this function is created during a session. The income is only generated once, when the construction of the Construction has completed.

Network

Function value Attribute Unit Per category Description
Heat flow change per year HEAT_FLOW_M2_CHANGE_PER_YEAR m²/year Yes For any net load connected to an address part of a construction of this function, the amount of resources (FLOW) requested in addition to those in the starting year during every subsequent year. The amount of resources requested starts at HEAT_FLOW_M2_START_VALUE in the start year, and is then increased by this value every year until the building's year of construction, and finally multiplied by the size of the address(es) the net load is associated with to get a default FLOW value for the net load.
Heat flow formula start year HEAT_FLOW_M2_START_YEAR year Yes For any net load connected to an address part of a construction of this function, the start year for the calculation of the amount of resources (FLOW) requested. The amount of resources requests starts at HEAT_FLOW_M2_START_VALUE in this year, and is then increased by HEAT_FLOW_M2_CHANGE_PER_YEAR every year until the building's year of construction, and finally multiplied by the size of the address(es) the net load is associated with to get a default FLOW value for the net load.
Heat flow to power multiplier HEAT_POWER_TO_FLOW_MULTIPLIER factor Yes For any net load connected to an address part of a construction of this function, the divisor used to convert the automatically calculated FLOW to an automatically calculated POWER attribute. The automatically calculated FLOW divided by this value is the automatically calculated POWER. Note that an explicitly defined FLOW attribute is not used in this calculation.
Heat flow value at start year HEAT_FLOW_M2_START_VALUE Yes For any net load connected to an address part of a construction of this function, the amount of resources (FLOW) requested by the net load in the defined starting year. This value is increased with the HEAT_FLOW_M2_CHANGE_PER_YEAR, until the building's year of construction, and finally multiplied by the size of the address(es) the net load is associated with to get a default FLOW value for the net load.
Pipes permitted PIPES_PERMITTED boolean Whether net lines are allowed to be generated under this construction.

Traffic

Function value Attribute Unit Per category Description
Height offset HEIGHT_OFFSET_M m How many meters above or below the calculated ground this construction should be visualized. This is intended for bridges, so that they can be lined up appropriately with the surrounding land.
Lanes TRAFFIC_LANES integer How many lanes of traffic there are on this road. A negative value causes vehicles to move in the opposite direction. This is only relevant for roads, intersections, and bridges. This affects the visualisation.
Noise sigma TRAFFIC_NOISE_SIGMA dB(A) Difference in noise intensity of vehicles at their reference speed, used in the traffic model. Effectively a flat modifier in noise.
Noise tau TRAFFIC_NOISE_TAU dB(A) Difference in noise intensity of vehicles for every order of magnitude difference with their reference speed, used in the traffic model. Effectively a speed-dependent modifier in noise.
Parking lots PARKING_LOTS_PER_M2 parking lot/m² Yes How many parking lots are available per m² of this construction.
Parking lots demand PARKING_LOTS_DEMAND_PER_M2 parking lot/m² Yes How many parking lots are required per m² of this construction.
Speedlimit TRAFFIC_SPEED km/h How fast vehicles move on this construction. This is only relevant for roads, intersections, and bridges. This affects the visualisation, and the calculations for the Traffic Noise Overlay and the Traffic NO2 Overlay
Units per hour TRAFFIC_FLOW vehicles/h How many vehicles move over any given cross-section of the road per hour, spread across all lanes. This is only relevant for roads, intersections, and bridges. This affects the visualisation, and is part of the traffic model, in turn affecting the calculations for the Traffic Noise Overlay and the Traffic NO2 Overlay.

Water

Function value Attribute Unit Per category Description Model-specific articles
Connected top sewer area SEWERED boolean Whether this construction can be connected to a sewer. Sewered (Water Overlay)
Depth of plant roots ROOT_DEPTH_M m The depth of the roots of the plants of this construction. Root depth m (Water Overlay)
Drainage DRAINAGE m Whether this construction has drainage, which affects the calculation of the Subsidence Overlay. A negative value means passive drainage. A positive value means active drainage.
Ground infiltration per day GROUND_INFILTRATION_MD m/day The permeability of this construction to water trying to infiltrate into the ground. Ground infiltration md (Water Overlay)
Manning value WATER_MANNING s/(m1/3) The manning value of the construction, which is a roughness in regards to water flow. Water manning (Water Overlay)
Water evaporation WATER_EVAPORATION_FACTOR factor How much this construction facilitates water evaporating from the underground. Water evaporation factor (Water Overlay)
Water storage WATER_STORAGE_M2 m³/m² How much water can be stored in this construction. This affects the calculation of the Water Storage Indicator, and calculations of the Water Overlay. Water storage (Water Overlay)

Attributes

Besides the function values which are provided by default, it is possible to add user-defined attributes to function values as well. Any attribute added is automatically available as an attribute for all functions, and all constructions, although the default value of the attribute will be 0.

User-defined attributes added to a function value always apply to the construction as a whole, and cannot be category-specific.

Function value Attribute Unit Per category Description
(user defined) (user defined) (user defined) Attributes can be used to assign any additional values or properties to functions and the constructions which derive from them.

Editing Function Values

Editor → Current Situation (Ribbon tab) → Buildings (Ribbon bar) → Edit Function Values (Dropdown)

All Functions in the Tygron Platform can have their Function Values edited.

The Function Values window.

Changing Function Values

When a Function is added to the list of Functions in the Function Values window, its Function Values can be modified.

How to change Function Values:
  1. If the desired Function is not yet present in the list, add the Function to the list.
  2. Find the column with the property you wish to change.
  3. Change the value in the row of the function and the column of the property.

Note: When a Function has multiple Categories, some Function Values can also have different values per Category for the same Function.

Editing the construction costs for the Function "Roads".