Traffic Noise Overlay: Difference between revisions

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{{learned|what the Traffic Noise overlay is|which information is displayed on the Traffic Noise overlay|which additional information is displayed in the hover panel|}}
[[File:Traffic_Noise-Overlay.jpg|thumb|right|Traffic Noise overlay]]
==What is the Traffic Noise overlay?==


[[File:Traffic_Noise-Overlay.jpg|thumb|420px|left|Active Traffic Noise overlay]]
The Traffic Noise Overlay is a [[Grid Overlay]] which computes the amount of noise in dB(A) for any given location in the [[project]]. The calculation takes into account traffic intensities and a number of environmental- and computation parameters to compute the noise impact. It also takes into account [[Building]]s and [[Elevation model|terrain features]] which would block the transmission of noise.
The Traffic Noise overlay is an [[Overlay]] which displays the impact of traffic noise in different colors for the project area. These colors indicate traffic noise ranges from 0 dB to 75+ db. Based on traffic flow and distance a grid is calculated for the project area.  
[[File:Traffic_Noise-Overlay_Legend.jpg|thumb|420px|right|Traffic Noise ranges and colors]]
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==Additional information displayed in hover panel==
The Overlay only computes noise from traffic. Although a background noise level can be configured, other sources of noise (such as windmills, air traffic, or factories) are explicitly excluded.
[[File:Editor_overlay_quality_of_life_hover.jpg|thumb|150px|right|Hover panel displays additional information]]
[[File:Traffic_Noise-Overlay-model.png|thumb|left|Traffic Noise Model]]
The hover panel gives additional information when the overlay is active.
{{clear}}


====Surrounding Livability====
==Configuration==
The value of livability in the surroundings.
{{main|Model attributes (Traffic Noise Overlay)}}


====Livability in the Zone====
The Traffic Noise Overlay has a number of options which allow it to be configured as desired. A [[Traffic Noise Overlay Wizard|configuration wizard]] is available.
The average value of the livability in the entire [[Zones|zone]]


For information on adding and removing Overlays see...
The following aspects can be configured:
* Reference speed per vehicle type
* Noise and noise multipliers per vehicle type
* Background noise
* The hour(s) of the day to perform the calculation for


==Changing function values to change effects on the Livability==
===Traffic===
: '' Main article: [[Functions#Changing_function_values|Changing function values]]''
Traffic intensities for each type of traffic can be based on one of the following:
{{Editor ribbon|header=Indicators|bar=Function Values}}
* The [[Building attributes (Traffic Noise Overlay)|Attributes of roads]] present in the [[project]].
[[File:Function_values_screen.jpg|thumb|750px|left|The function values window.]]
* [[Prequels (Traffic Noise Overlay)|Prequel Overlay]]s which define respective traffic intensities on a grid.  
To change a function value to affect the Livability overlay (and indicator), look for the "Livability Effect" column and change the "Livability Effect" value for a certain construction. The overlay will update automatically.


{{Editor steps|title=change function values to change effects on the Livability|Select "Indicators" in the ribbon header|Select "Function Values" in the ribbon bar |The Function Values window will open |Select a function in the Function Values window |Change the "Livability Effect" Value for the selected function |Confirm by pressing "Enter"}}
The traffic intensities can be defined as either a single value or as 24 hours, with each value corresponding to each hour of the day. The intensity used for the calculation is then defined by the [[Hours (Traffic Noise Overlay)|HOURS model Attribute]].
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==Adding and removing the Livability Overlay==


Because the Livability Overlay is directly linked to the [[Livability indicator|Livability (Quality of Life) indicator]], it is currently not possible to load this Livability overlay separately. To activate the Livability overlay in you project, please see the documentation about [[Indicators#Adding/removing indicators|Adding/removing indicators]].
==Calculation==
{{main|Traffic noise formula (Traffic Noise Overlay)}}
The Traffic Noise Overlay performs its calculations based on the [[Model attributes (Traffic Noise Overlay)|Overlay's Attributes]], and the [[Building attributes (Traffic Noise Overlay)|Attributes of roads]] present in the [[project]]. The calculations follow the standard rekenmethode 1 (SRM 1){{ref|srm1}}.
 
==Results==
The following result types are available as output from the traffic noise calculations:
 
{{result types|suppresscategory=true|allowselflinks=true|
{{:Noise db            result type (Traffic Noise Overlay)}}
{{:Emission            result type (Traffic Noise Overlay)}}
}}
 
{{article end
|notes=
* The Overlay calculations are based on Standard Calculation Method 1 (SRM1) as defined by the dutch government.{{ref|srm1}}.
|howtos=
* [[How to add and remove an Overlay]]
* [[How to edit an overlay legend]]
* [[How to add a static traffic model]]
* [[How to add a static grid-based traffic model]]
* [[How to add traffic data unaligned with roads]]
* [[How to add a dynamic traffic model]]
|references=
  <references>
    {{ref|srm1
      |name=SRM1
      |author=
      |page=
      |source=Reken- en meetvoorschrift geluid 2012, Bijlage III
      |link=http://wetten.overheid.nl/BWBR0031722/2015-07-01#BijlageIII
      |lastvisit=12-02-2022
    }}
  </references>
}}
 
{{TrafficNoiseOverlay nav}}
{{Overlay nav}}

Latest revision as of 16:48, 2 February 2024

Traffic Noise overlay

The Traffic Noise Overlay is a Grid Overlay which computes the amount of noise in dB(A) for any given location in the project. The calculation takes into account traffic intensities and a number of environmental- and computation parameters to compute the noise impact. It also takes into account Buildings and terrain features which would block the transmission of noise.

The Overlay only computes noise from traffic. Although a background noise level can be configured, other sources of noise (such as windmills, air traffic, or factories) are explicitly excluded.

Traffic Noise Model

Configuration

Main article: Model attributes (Traffic Noise Overlay)

The Traffic Noise Overlay has a number of options which allow it to be configured as desired. A configuration wizard is available.

The following aspects can be configured:

  • Reference speed per vehicle type
  • Noise and noise multipliers per vehicle type
  • Background noise
  • The hour(s) of the day to perform the calculation for

Traffic

Traffic intensities for each type of traffic can be based on one of the following:

The traffic intensities can be defined as either a single value or as 24 hours, with each value corresponding to each hour of the day. The intensity used for the calculation is then defined by the HOURS model Attribute.

Calculation

Main article: Traffic noise formula (Traffic Noise Overlay)

The Traffic Noise Overlay performs its calculations based on the Overlay's Attributes, and the Attributes of roads present in the project. The calculations follow the standard rekenmethode 1 (SRM 1)[1].

Results

The following result types are available as output from the traffic noise calculations:

Notes

  • The Overlay calculations are based on Standard Calculation Method 1 (SRM1) as defined by the dutch government.[1].

How-to's

References

  1. 1.0 1.1 SRM1 ∙ Reken- en meetvoorschrift geluid 2012, Bijlage III ∙ Found at: http://wetten.overheid.nl/BWBR0031722/2015-07-01#BijlageIII ∙ (last visited: 12-02-2022)