9 Planimetric features

Description hierarchy

<LandXML>					Transfer file
	<Units><Metric>				Units (Metric)
	<CoordinateSystem>				Coordinate and elevation system
		<Start>			Base point
	<Project>				Project
		<Feature>			"IM_codings" extension type coding systems
	<Application>				Application
		<Author>			Authors
	<PlanFeatures>				Collection of planimetric features
		<PlanFeature>			Planimetric feature such as building footprint, guard rail, lightpole or signage
			<CoordGeom>		Plan feature geometry
				<Line>	Line (geom. line)
				<IrregularLine>	Line string
				<Curve>	Circular arc (geom. line)
				<Spiral>	Transition curve (geom-line)
			<Location>		Plan feature location
			<Feature>		"IM_cable" extension cable plan feature details
			<Feature>		"IM_footing" extension footing plan feature details
			<Feature>		"IM_railing" extension railing plan feature details
			<Feature>		"IM_fence" extension fence plan feature details
			<Feature>		"IM_surfaceStructure" extension surface structure plan feature details
			<Feature>		"IM_planfeature" extension generic plan feature details
			<Feature>		"IM_coding" extension planfeature type coding
		<Feature>			"IM_coding" extension planfeatures collection type coding (infra coding)
		<Feature>			"IM_plan" extension plan information
	<FeatureDictionary>				Definition dictionary of extensions

9.1 Contents

In an Inframodel file, any plan contains the header information described in the section 1. The design content in the file is defined in metric units, using an adequate number of decimals for accuracy. For example, when the length unit in use is meter, the values must be defined to at least six decimal places.
Planimetric features, such as cables, lightpole or signage footings, railings and fences, or any other objects not otherwise defined by LandXML schema are described using <PlanFeature> element. These features often interface with route (road, street, rail or waterway), in which case they are described under <Roadways> collection in the same file, as defined in chapters 4, 5 and 6. This chapter covers those planimetric features not directly assigned to any particular route, and surface structures potentially spanning across multiple routes (such as urban street surface plans).

9.2 Plan features

The planimetric features not directly assigned to any particular route (road, street, rail or waterway) are grouped in planimetric features collections under <PlanFeatures> consisting of several <PlanFeature> elements. How the planimetric features are arranged into collections (e.g. by types) is subject to project guidelines or other usage agreements. Each collection shall have a unique name.

Attributes of <PlanFeatures>:

desc	description	e.g. [Steel mesh fences type T2]
name	unique name	e.g. [A_fences_T2]
state	state	[abandoned] [destroyed] [existing] [proposed]

Planimetric features collections may be also be type coded in <Feature> using 7. Type coding in "IM_coding" extension. In particular, this should be used when the collections contains surface structrure definition associated with the topmost surface of a plan: [InfraCoding] set to value [201000]

<PlanFeatures>

schema documentation

9.2.1 Plan feature

The individual plan features are each described under <PlanFeature>, having a mandatory and unique name and optionally <Location> and geometry as <CoordGeom>.

Attributes of <PlanFeature>:

desc	description	e.g. [Steel mesh fence]
name	unique name	e.g. [f_123]
state	state	[abandoned] [destroyed] [existing] [proposed]

<PlanFeature> geometry is described in <CoordGeom> using line strings for linear features, e.g. cables, railings and fences; in case of sruface structure boudaries, also circular or spiral curve arcs may be used. For point features, such as footings, location is given in <Location> element as a two or three dimensional point:

<Location>northing easting (elevation)<Location>

<PlanFeature>

schema documentation

Details of <PlanFeature> are described as <Feature> extension, defined for each type as follows:

     1. Cable information in "IM_cable" extension
     2. Footing information in "IM_footing" extension
     3. Railing information in "IM_railing" extension
     4. Fence information in "IM_fence" extension
     5. Surface structure properties in "IM_surfaceStructure" extension
     6. Generic plan feature in "IM_planfeature" extension

Additionally, all plan features may be type coded in <Feature> using 7. Type coding in "IM_coding" extension.

9.2.1.1 Cable

Details of <PlanFeature> in "IM_cable" <Feature>

name	optional name	e.g. [9]
code	code	[IM_cable]
source	source	[inframodel]
Parameters <Property>
	label	[label]	label or number by which the cable may be identified	value	e.g. [1]
	label	[owner]	information about who is the owner of the cable	value	e.g. [Helsingin Energia]
	label	[networkType]	type of cable network	value	e.g. [electricity]
	label	[cableType]	type of the cabel	value	e.g. [AXMK 4x25S]
	label	[radiusAround]	spatial allocation around the cable as a circle	value	e.g. [0.2]
	label	[widthRight]	spatial allocation on the right side of the cable (from centre)	value	e.g. [0.2]
	label	[heightAbove]	spatial allocation above the cable (from centre)	value	e.g. [0.2]
	label	[widthLeft]	spatial allocation on the left side of the cable (from centre)	value	e.g. [0.2]
	label	[heightBelow]	spatial allocation below the cable (from centre)	value	e.g. [0.2]

Cable

example

9.2.1.2 Footing

Details of <PlanFeature> in "IM_footing" <Feature>

name	optional name	e.g. [9]
code	code	[IM_footing]
source	source	[inframodel]
Parameters <Property>
	label	[label]	label or number by which the footing may be identified	value	e.g. [1]
	label	[footingHeight]	height of the footing	value	e.g. [0.5]
	label	[footingMaterial]	material of the footing	value	e.g. [concrete]
	label	[foundationType]	type of footing foundation	value	e.g. [piling]
	label	[radiusAround]	spatial allocation for the footing as a circle in horizontal plane	value	e.g. [0.4]
	label	[length]	spatial length allocation for the footing in horizontal plane	value	e.g. [0.5]
	label	[lengthDir]	direction of length dimension of spatial allocation in horizontal plane, zero = north, in terms of direction units	value	e.g. [1.403837]
	label	[width]	spatial width allocation for the footing in horizontal plane	value	e.g. [0.3]

Footing

example

9.2.1.3 Railing

In Inframodel, this type of planfeature covers guardrails and guide bars, as well as touch, bump and collision protection structures.

Details of <PlanFeature> in "IM_railing" <Feature>

name	optional name	e.g. [9]
code	code	[IM_railing]
source	source	[inframodel]
Parameters <Property>
	label	[label]	label or number by which the railing may be identified	value	e.g. [1]
	label	[railingType]	type of railing	value	e.g. [tubular spar railing]
	label	[purpose]	purpose of railing	value	e.g. [handrail]
	label	[shockResistaceClass]	shock resistace class of the railing	value	e.g. [T1]
	label	[snowPlowingDurabilityCategory]	category of snow plowing durability of the railing	value	e.g. [1]
	label	[normalizedWorkingWidht]	normalized working widht of the railing in width units	value	e.g. [0.2]
	label	[railingHeight]	height of the railing in height units	value	e.g. [0.5]
	label	[railHeight]	height of the guard rail or guide bar in height units	value	e.g. [0.5]
	label	[railingMaterial]	material of the railing	value	e.g. [steel]
	label	[startType]	type of railing start	value	e.g. [energy absorbing]
	label	[endType]	type of railing end	value	e.g. [sloping]

9.2.1.4 Fence

In Inframodel, this type of planfeature covers fences, booms and barriers, as well as gates and openings such as fence manholes.

Details of <PlanFeature> in "IM_fence" <Feature>

name	optional name	e.g. [9]
code	code	[IM_fence]
source	source	[inframodel]
Parameters <Property>
	label	[label]	label or number by which the fence may be identified	value	e.g. [1]
	label	[fenceType]	type of fence	value	e.g. [fence manhole]
	label	[fenceHeight]	height of the fence in height units	value	e.g. [2.5]
	label	[postMaterial]	material of fence posts	value	e.g. [concrete]
	label	[postShape]	shape of fence posts	value	e.g. [circular]

9.2.1.5 Surface structure

In Inframodel, this type of planfeature covers surface structure properties (material, thickness).

Details of <PlanFeature> in "IM_surfaceStructure" <Feature>

name	optional name	e.g. [9]
code	code	[IM_surfaceStructure]
source	source	[inframodel]
Parameters <Property>
	label	[material]	surface material name	value	e.g. [concrete]
	label	[thickness]	surface material thickness in height units	value	e.g. [0.12]
	label	[surfaceRef]	optional reference to the name of <Surface> with 3D geometric definition of the surface	value	[surfaceNameRef]

Surface Structure

example

9.2.1.6 Generic feature

When no specific <Feature> extension defined above can be applied, these generic definitions can be used.

Details of <PlanFeature> in "IM_planfeature" <Feature>

name	optional name	e.g. [9]
code	code	[IM_planfeature]
source	source	[inframodel]
Parameters <Property>
	label	[type]	type of plan feature	value	e.g. [landmark]
	label	[material]	material of the plan feature	value	e.g. [concrete]

9.2.1.7 Type coding

Coding of <PlanFeatures> in "IM_coding" <Feature>:

	name	optional name	e.g. [10]
	code	code	[IM_coding]
	source	source	[inframodel]
type codes <Property>
	label	[infracoding]	type code of the plan feature	value	e.g. [3225]
	label	[infracodingDesc]	type code description	value	e.g. [Gates]
	label	[proprietryInfraCoding]	additional or alternative infra type code	value	code e.g. in system by organisation Y [y:322502]
	label	[proprietaryInfraCodingDesc]	description of additional or alternative type code	value	description e.g. [y:Double swing gate]