New Zealand Topographic Data Dictionary

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For more information contact the New Zealand National Topo/Hydro Authority. Please note: the metadata presented here is prior to changes agreed with ICSM members and is therefore subject to alteration. Please read the Explanatory Page for explanations of the fields, abbreviations and symbols which have been used.

Object_class	Entity_class	Additional entity class	Object Inheritance
tunnel_cl	TUNNEL	Not applicable	simple_line
Object description
An underground passage.
Map image		Digital data image

Click to enlarge map		Click to enlarge diagram
Comments

Entity Source	Classification	Seed class	Last updated	Edition number
US Standard Entity	50k topo	not_applicable	23/11/2001	3

Associated Objects

(Where applicable)

railway_cl

road_cl

track_cl

Object Attributes

(Where applicable)

Attribute

Data type

Attribute description

Attribute values

name

string

Name of the tunnel

"Wages Tunnel"

{empty}

tunnel use1

string

The predominant traffic or utility that uses the tunnel. Where the predominant use is unknown this field is left empty

aqueduct

cablecar

canal

foot traffic

livestock

pipe

river

tram

train

vehicle

{empty}

tunnel use2

string

A secondary category of traffic or utility using the tunnel. Where no secondary use exists or is known, this field is left empty.

aqueduct

cablecar

canal

foot traffic

livestock

pipe

river

tram

train

vehicle

{empty}

tunnel type

string

'natural' refers to a naturally occuring tunnel; man-made tunnels are the default: ie. no entry, {empty}

natural

{empty}

tunnel status

string

derelict

disused

under construction

{empty}