Sub Drain Area

 
 
 

A sub-drain area is directly connected to a section and a network point. It is used for flow computations such as how much water flows in the section. Its properties are collected in a model table.

Each section can be assigned to one sub-drain area.

Name Data Type Description

AREA

Number

The area size, measured in square meters.

AREA_NUMBER

Number

The number of the area.

COMMERCIAL_INFLOW

Number

The inflow of commercial water, measured in liters / second [l/s].

COVERED_AREA

Number

The area of the covered area, measured in square meters.

DATE_CREATION

Date

The date when the item was created.

DISCHARGE_COEFFICIENT

Number

The discharge coefficient (psi value) of the sub drain area.

DRY_WEATHER_INFLOW

Number

The amount of inflow water during dry weather, measured in liters / second [l/s].

FACTOR_COV_AREA

Number

The factor of the covered area.

FACTOR_FLAT_ROOF_AREA

Number

The factor of the flat roof area.

FACTOR_NOT_COV_AREA

Number

The factor of the non-covered area.

FACTOR_ROOF_AREA

Number

The factor of the roof area.

FID_DRAIN_AREA

Number

The relation with the drain area.

Related to:

  • WW_DRAIN_AREA

FID_DRY_WEATHER

Number

The relation to the dry weather feature.

Related to:

  • WW_DRY_WEATHER

FID_END_POINT_ATTR

Number

The relation with one point.

Related to:

  • WW_DISCHARGE
  • WW_DISPOSAL_TANK
  • WW_GREASE_TRAP
  • WW_GRIT_CHAMBER
  • WW_MANHOLE
  • WW_NEUTRALIZER
  • WW_OIL_WATER_SEP
  • WW_OUTFALL
  • WW_SEPTIC_TANK

FID_HYD_FEATURE

Number

The relation to the hydraulic feature.

Related to:

  • WW_HYD_DISCHARGE
  • WW_HYD_FREE_OUTFALL
  • WW_HYD_MANHOLE
  • WW_HYD_OUTFALL
  • WW_HYD_PUMP
  • WW_HYD_RESTR_CHAR_LINE
  • WW_HYD_RESTR_DISCHARGE
  • WW_HYD_SECTION
  • WW_HYD_STORAGE_SITE
  • WW_HYD_VALVE

FID_HYDRAULIC_COLLECTION

Number

The relation to a hydraulic collection.

Related to:

  • WW_HYDRAULIC_COLLECTION

FID_SECTION

Number

The relation with one section.

Related to:

  • WW_SECTION

FLAT_ROOF_AREA

Number

The area of a flat roof, measured in square meters.

FOUL_WATER_INFLOW

Number

The inflow of foul water, measured in liters / seocnd [l/s].

GEOM

Geometry

Feature geometry polyline. For more information, see Oracle Spatial Users Guide and Reference.

HOUSE_INFLOW

Number

The amount of house water inflow, measured in liters / second [l/s].

ID_ADDED_MATERIAL

Number

The added material ID.

Related to:

  • WW_ADDEDMATERIAL_TYPE_TBD

ID_DISPOSITION_STATE

Number

The disposition state of the item. For example, death, planed, etc.

Related to:

  • WW_DISPOSITION_STATE_TBD

ID_HYD_AREA_CHAR

Number

The hydraulic area character ID.

Related to:

  • WW_HYD_AREA_CHAR_TBD

ID_HYD_AREA_FUNCTION

Number

The hydraulic area function ID.

Related to:

  • WW_HYD_AREA_FUNCTION_TBD

ID_HYD_AREA_TYPE

Number

The hydraulic area type ID.

Related to:

  • WW_HYD_AREA_TYPE_TBD

ID_HYD_FOULING_CLASS

Number

The hydraulic fouling class ID.

Related to:

  • WW_HYD_FOULING_CLASS_TBD

ID_INCLINATION_CLASS

Number

The inclination class ID.

Related to:

  • WW_INCLINATION_TBD

ID_SOIL_TYPE

Number

The type of soil.

Related to:

  • WW_SOIL_TYPE_TBD

ID_SUB_DRAIN_UTILISATION

Number

The utilisation of the sub-drain area.

Related to:

  • WW_UTILISATION_TBD

IDENTIFIER

Varchar2

The identifier.

INDUSTRIAL_INFLOW

Number

The amount of industrial water inflow, measured in liters / second [l/s].

INFILTRATION_INFLOW

Number

The amount of infiltration water inflow, measured in liters / second [l/s].

INFILTRATION_WATER_COEFFICIENT

Number

The infiltration water coefficient.

INHABITANT

Number

The number of inhabitants in the sub-drain area.

INHABITANT_DENSITY

Number

The inhabitant density, measured in inhabitants / hectare [inhabitants/ha].

NAME_NUMBER

Varchar2

The name or number of this item.

NARRATIVE

Varchar2

A description or other unique information concerning this item.

NOT_COVERED_AREA

Number

The area that is not covered, measured in square meters.

RAIN_INFLOW

Number

The amount of rain water inflow, measured in liters / second [l/s].

ROOF_AREA

Number

The area that is covered by a roof, measured in square meters.

SLOPE

Number

The average slope of the sub-drain area.

SLOPE_CLASS

Number

The class of slope of the sub-drain area.

SURFACE_AREA

Number

The area of covered area, measured in square meters.

USAGE_TIME_PER_DAY

Number

The average usage of water per day, measured in hours / day.

USER_FLAG

Varchar2

An operator defined work area. This attribute can be used by the operator for user defined system processes. It does not effect this item's data integrity and should not be used to store this item's data.

WATER_USAGE

Number

The usage of water by inhabitants measured in liters / inhabitant / day [l/inhabitant/day].

Sub Drain Area Model

In the Sub Drain Area Model feature class, the validation checks whether the sub area factors add to 1.0. FACTOR_COV_AREA + FACTOR_NOT_COV_AREA + FACTOR_ROOF_AREA + FACTOR_FLAT_ROOF_AREA. In the feature class form, attributes that do not match are highlighted, and a tooltip explains the inconsistency.

Note

In the wastewater document options, you can enable sub-drain area model validation. See Set Wastewater Document Options.

Name Data Type Description

DISCHARGE_COEFFICIENT

Number

The discharge coefficient of the sub-drain area. This is part of the input flow which goes into the wastewater network.

FACTOR_COV_AREA

Number

The covered area factor.

FACTOR_FLAT_ROOF_AREA

Number

The flat roof area factor.

FACTOR_NOT_COV_AREA

Number

The uncovered area factor.

FACTOR_ROOF_AREA

Number

The roof area factor.

FOUL_WATER_INFLOW

Number

The inflow of foul water, measured in liters / second [l/s].

INFILTRATION_INFLOW

Number

The inflow of infiltration water, measured in liters / second [l/s].

INFILTRATION_WATER_COEFFICIENT

Number

The infiltration coefficient.

INHABITANT_DENSITY

Number

The density of inhabitants, measured in inhabitants / hectares [Inhabitant/ha].

MODEL_NAME

Varchar2

The name or number of the model.

SLOPE_CLASS

Number

The class of slope of the sub-drain area.

USAGE_TIME_PER_DAY

Number

The average usage of water per day measured in hours / day.

WATER_USAGE

Number

The usage of water by inhabitants, measured in liters / inhabitant / day [l/inhabitant/day].