Noise Modelling using OpeNoise in QGIS - Revision history

ZachSauve at 21:54, 2 October 2024

2024-10-02T21:54:52Z

2024-10-02T21:39:11Z

2024-10-02T21:31:14Z

Adding to Limitations

2024-10-02T03:41:55Z

2024-10-02T03:35:48Z

2024-10-02T03:33:40Z

2024-10-02T03:32:20Z

2024-10-02T03:27:01Z

Added info in intro

2024-10-02T02:58:19Z

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 =='''Conclusion'''==
 The OpeNoise Map plugin allows the user to create and visualize noise maps by modeling sound propagation of decibel levels as well as calculating potentially harmful effects. I hope that with this tutorial you will be able to use the OpeNoise Map plugin tool to its fullest capabilities.
+Feel free to make and edits and improvements on this page as we are constantly trying to improve these tutorials.

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 ===Traffic Flow===
 When using the Road option in the "Calculate Noise Levels" you have three different levels of detail that you can use.
-)NMPB(Emission) - This only asks you for one decibel field for your layer that you are using
+)NMPB(Emission) - This only asks you for one decibel field for your layer that you are using.
-)NMPB(Traffic Flow) - This asks you for information regarding the amount of weight and speeds of the light and heavy vehicles per hour passing by that segment of the road. It also incorporates the type of traffic it is, as well as road slope and surface. You can find more detailed explanation and references by pressing the info button on that page
+)NMPB(Traffic Flow) - This asks you for information regarding the amount of weight and speeds of the light and heavy vehicles per hour passing by that segment of the road. It also incorporates the type of traffic it is, as well as road slope and surface. You can find more detailed explanation and references by pressing the info button on that page.
 [[File:Traffic_1.png|400px|frame|left]]

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 The plugin is limited to showing propagation of noise up to 5000m from the given source of sound. This restricts the usage and accuracy of the plugin when dealing with high decibel levels.
-The plugin does not do well with larger area and will often crash when there is too much data to process. A potential solution to this is to segment the work into smaller areas.
+The plugin does not do well with larger area and will often crash when there is too much data to process. A potential solution to this is to segment the work into smaller areas. When running the "Create Receiver Points" there may be and undesignated error that occurs at times. I believe this is due to version errors between the plugin and QGIS, that can be fixed by reinstalling the plugin or using a more stable version of QGIS.
 This tool does not take into account the direction, angle or elevation of the sound when running it's calculations. There are other sound mapping tools that can handle all these aspects in their calculations. The Noise Modelling has those capabilities in this link [https://noisemodelling.readthedocs.io/en/latest/Noise_Map_From_Point_Source.html Noise Modelling].

← Older revision		Revision as of 03:41, 2 October 2024
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	* You will now have 7 temporary layers in your map view;		* You will now have 4 temporary layers in your map view;

	- People Exposure - Lden		- People Exposure - Lden

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 =='''Using OpeNoise Map with Roads'''==
-===Creating Receiver Points===
+===Create Receiver Points===
 ) To begin left click on the plugins from the ribbon and hover over OpeNoise Map. When the menu appears select on "Create Receiver or Grid Points" and select the "Receiver Points" tab. In the box that appears make sure that the "Building layer(input polygon layer)" dropdown box has the "BakuDowntownBuildings" shapefile as selected. In the "receiver layer" select browse and name the new shapefile "receiverpoints".

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-===Calculate Noise levels===
+===Calculate Noise Levels===
 *For this Tutorial, a decibel level of 134 was chosen in accordance with the available [https://www.miamidade.gov/auditor/library/formula-1-race-hosting-report.pdf literature] on noise pollution of Formula 1 racecars. This value is given to the whole track and does not account for slow areas(corners) of the track where the decibel level would be decreased due to braking.
-) Return to the OpeNoise Map dropdown window and select " Calculate Noise levels"
+) Return to the OpeNoise Map dropdown window and select " Calculate Noise Levels"
 ) Select the input tab- under "RECEIVERS" the point layer we created early should be selected.
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 ) Go to the Calculate tab and select the calculate button this process may take between 1 and 2 hours depending on the users computing power
-*Result of Calculate Noise levels assigns decibel values up to 1000 m from the sound source. Points beyond 1000m are gray and assigned "no level"
+*Result of Calculate Noise Levels assigns decibel values up to 1000 m from the sound source. Points beyond 1000m are gray and assigned "no level"
 [[File:Noiselevel-assigned.png|300px|frame|left]]

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 ===Purpose===
-The objective of this tutorial is to help the user visualize the impact of sound and how it propagates from a location. The user will do this using the “OpeNoise Map” version 2.2 Plugin in QGIS and create a noise map assessing the exposure to noise in a given area, due to the existence of different sources of noise. For this tutorial, the noise to be modelled is the impact of Formula 1 race cars at Baku City Circuit, Azerbaijan.
+The objective of this tutorial is to help the user visualize the impact of sound and how it propagates from a location. The user will do this using the “OpeNoise Map” version 2.2 Plugin in QGIS and create a noise map assessing the exposure to noise in a given area, due to the existence of different sources of noise. For this tutorial, the noise to be modelled is the impact of Formula 1 race cars at Baku City Circuit, Azerbaijan. It will then go to show the different variations and higher level details the the tool can use.
 ===Accessing OpeNoise Map Plugin in QGIS===

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 ) Select the "Details" button next to the Baku City Circut layer, in the top left select "NMPB(emission)", for data type check the "Generic" box
 [[File:Power.png|500px|frame|left]]
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 [[File:Parameters.png|500px|frame|left]]