Channel Data Fields

Channel objects are used to represent an open channel or waterway.

Channel data can be edited on either the Channel Grid Window of the Asset Grid or the Channel Property Sheet.

To view and edit all channel data, use the Property Sheet.

The following describes all the data which can be used to define a channel.

Common Data Fields

Fields that are common to the majority of objects can be found in the Common Fields topic.

Channel Data

Database Table Name: cams_channel

Show Columns

Database Names

Size, Type and Units

Defaults and Error Limits

Field Name

Help Text

Database Field

Data Type

Size

Units

Precision

Default

Error Lower Limit

Error Upper Limit

Warning Lower Limit

Warning Upper Limit

ID

The name of the object.

The ID is the primary key in the database for the network object. This means that the ID field of each object must be unique for all objects of the same object type.

id

Text

40

 

0

 

 

 

 

 

US node ID

Upstream node.

us_node_id

Text

40

 

0

 

 

 

 

 

DS node ID

Downstream node.

ds_node_id

Text

40

 

0

 

 

 

 

 

Owner

The proprietor of the asset.

owner

Text

64

 

0

 

 

 

 

 

System type

System type:

Database Value

Description

F

Foul

S

Surface

C

Combined

T

Transition

O

Overflow

U

Unspecified

The options available in the dropdown list depend on which coding standard is being used. See the Standards and Choice Lists dialog for further information.

system_type

Text

10

 

0

 

 

 

 

 

Type

The type of channel:

Database Value

Description
G General
R River
C Canal

The options available in the dropdown list depend on the choices defined in the Standards and Choice Lists dialog.

type

Text

10

 

0

 

 

 

 

 

Operational status

Current operational status:

Database Value

Description
AB Abandoned
INUSE In Use
STANDBY Standby

The options available in the dropdown list depend on the choices defined in the Standards and Choice Lists dialog.

status

Text

10

 

1

 

 

 

 

 

X coord

X coordinate of the object.

x

Double

 

XY

2

 

 

 

 

 

Y coord

Y coordinate of the object.

y

Double

 

XY

2

 

 

 

 

 

Branch ID

Numeric field used to identify to which long section the link is associated. (See Defining Branches for further information).

branch_id

Long Integer

 

 

0

 

 

 

 

 

Name

Name of channel.

name

Text

200

 

0

 

 

 

 

 

Length

Length of channel.

length

Double

 

L

3

 

 

 

 

 

Width

Width of channel.

width

Double

 

XY

1

 

 

 

 

 

Depth

Depth of channel.

depth

Double

 

Y

3

 

 

 

 

 

Condition grade

A measure of asset condition for ancillary assets. By analogy with pipe condition grades, this is usually a number in the range 1-5. Unlike pipe condition grade, there is no distinction between structural and service condition for ancillary assets.

condition_grade

Long Integer

 

 

0

 

 

 

 

 

Critical

A measure of the likely impact of asset failure. The WRC SRM uses the codes A, B, C to represent "A" sewers where failures would be expensive to "C" where failures would be relatively cheap.

criticality

Text

5

 

0

 

 

 

 

 

Security

The security of the asset from unauthorised access/tampering:

Database Value

Description

A

Vulnerable

B

Moderate Risk

C

Secure

The options available in the dropdown list depend on the choices defined in the Standards and Choice Lists dialog.

security

Text

10

 

0

 

 

 

 

 

Construction date

Construction or installation date. This is date from which depreciation costs will be incurred for depreciation reports.

constr_date

Date / Time

 

 

0

 

 

 

 

 

Condition survey date

Date of the most recent condition survey of the asset.

survey_date

Date / Time

 

 

0

 

 

 

 

 

Installation cost

The original installation cost of the asset. This generally includes all costs incurred (e.g. mantime, asset purchase costs etc). This information is used in depreciation reports.

install_cost

Double

 

WN_COST

2

 

 

 

 

 

Inspection cost

Estimated cost of asset inspection.

inspection_cost

Double

 

WN_COST

2

 

 

 

 

 

Replacement cost

The estimated cost for completely replacing an asset.

replace_cost

Double

 

WN_COST

2

 

 

 

 

 

Rehabilitation cost

Rehabilitation costs to be incurred in bringing the asset to an acceptable condition. This is used in rehabilitation reports.

rehab_cost

Double

 

WN_COST

2

 

 

 

 

 

Expected Lifetime

The expected lifetime of the asset. This is used in depreciation reports as the period over which installation costs may be depreciated.

lifetime

Long Integer

 

 

0

 

 

 

 

 
Lateral nodes Click the button to display the Lateral Nodes editor, used to view lateral nodes on the channel.                    
Attachments

Click the button to display the Attachments Editor, used to attach and manage photos, sketches and other files associated with the network object.

See Attachments Editor and Common Data Fields for further details.

 attachments Array                
General properties fields See Common Data Fields for details of field in the General properties section of the property sheet.                    
User defined properties fields See Common Data Fields - User Fields for details of fields in the User defined properties section of the property sheet.                    
Time series links

Click the button to display the Time Series Data Source Grid, which is used to specify or update the time series data streams that are linked to this channel.

 tsdb_links                  
Network Data Fields

Further information about all the Network Object fields stored in the database can be found in the Network Data Fields section.

Channel

Asset Grid