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	<id>https://support.tygron.com/w/index.php?action=history&amp;feed=atom&amp;title=Traffic_noise_sigma_%28Traffic_Noise_Overlay%29</id>
	<title>Traffic noise sigma (Traffic Noise Overlay) - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://support.tygron.com/w/index.php?action=history&amp;feed=atom&amp;title=Traffic_noise_sigma_%28Traffic_Noise_Overlay%29"/>
	<link rel="alternate" type="text/html" href="https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;action=history"/>
	<updated>2026-04-04T13:57:16Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.45.1</generator>
	<entry>
		<id>https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=46830&amp;oldid=prev</id>
		<title>Maxim@tygron.com at 10:51, 5 October 2022</title>
		<link rel="alternate" type="text/html" href="https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=46830&amp;oldid=prev"/>
		<updated>2022-10-05T10:51:05Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:51, 5 October 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Construction &lt;/del&gt;attributes|&amp;lt;onlyinclude&amp;gt;{{&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Construction &lt;/del&gt;attributes|type=row&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Building &lt;/ins&gt;attributes|&amp;lt;onlyinclude&amp;gt;{{&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Building &lt;/ins&gt;attributes|type=row&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|group=Traffic Noise Overlay| unit=dB(A)       | attribute=TRAFFIC_NOISE_SIGMA    | description=Difference in noise intensity of vehicles at their reference speed. Effectively a flat modifier in noise.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|group=Traffic Noise Overlay| unit=dB(A)       | attribute=TRAFFIC_NOISE_SIGMA    | description=Difference in noise intensity of vehicles at their reference speed. Effectively a flat modifier in noise.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Maxim@tygron.com</name></author>
	</entry>
	<entry>
		<id>https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=45468&amp;oldid=prev</id>
		<title>Frank@tygron.nl at 13:37, 25 February 2022</title>
		<link rel="alternate" type="text/html" href="https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=45468&amp;oldid=prev"/>
		<updated>2022-02-25T13:37:36Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:37, 25 February 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot;&gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Noise sigma (Function Value)]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Noise sigma (Function Value)]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{TrafficNoiseOverlay_nav}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Frank@tygron.nl</name></author>
	</entry>
	<entry>
		<id>https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=45424&amp;oldid=prev</id>
		<title>Rudolf@tygron.nl at 11:59, 25 February 2022</title>
		<link rel="alternate" type="text/html" href="https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=45424&amp;oldid=prev"/>
		<updated>2022-02-25T11:59:09Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:59, 25 February 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Construction attributes|&amp;lt;onlyinclude&amp;gt;{{Construction attributes|type=row&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Construction attributes|&amp;lt;onlyinclude&amp;gt;{{Construction attributes|type=row&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|group=Traffic Noise Overlay| unit=dB(A)       | attribute=&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;TRAFFIC_NOISE_SIGNA &lt;/del&gt;   | description=Difference in noise intensity of vehicles at their reference speed. Effectively a flat modifier in noise.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|group=Traffic Noise Overlay| unit=dB(A)       | attribute=&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;TRAFFIC_NOISE_SIGMA &lt;/ins&gt;   | description=Difference in noise intensity of vehicles at their reference speed. Effectively a flat modifier in noise.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;      &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;}}&amp;lt;/onlyinclude&amp;gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;}}&amp;lt;/onlyinclude&amp;gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Rudolf@tygron.nl</name></author>
	</entry>
	<entry>
		<id>https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=45419&amp;oldid=prev</id>
		<title>Rudolf@tygron.nl: Rudolf@tygron.nl moved page Noise sigma (Traffic Noise Overlay) to Traffic noise sigma (Traffic Noise Overlay) without leaving a redirect</title>
		<link rel="alternate" type="text/html" href="https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=45419&amp;oldid=prev"/>
		<updated>2022-02-25T11:57:38Z</updated>

		<summary type="html">&lt;p&gt;Rudolf@tygron.nl moved page &lt;a href=&quot;/w/index.php?title=Noise_sigma_(Traffic_Noise_Overlay)&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Noise sigma (Traffic Noise Overlay) (page does not exist)&quot;&gt;Noise sigma (Traffic Noise Overlay)&lt;/a&gt; to &lt;a href=&quot;/wiki/Traffic_noise_sigma_(Traffic_Noise_Overlay)&quot; title=&quot;Traffic noise sigma (Traffic Noise Overlay)&quot;&gt;Traffic noise sigma (Traffic Noise Overlay)&lt;/a&gt; without leaving a redirect&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:57, 25 February 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Rudolf@tygron.nl</name></author>
	</entry>
	<entry>
		<id>https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=45418&amp;oldid=prev</id>
		<title>Rudolf@tygron.nl: Created page with &quot;{{Construction attributes|&lt;onlyinclude&gt;{{Construction attributes|type=row |group=Traffic Noise Overlay| unit=dB(A)       | attribute=TRAFFIC_NOISE_SIGNA    | description=Diffe...&quot;</title>
		<link rel="alternate" type="text/html" href="https://support.tygron.com/w/index.php?title=Traffic_noise_sigma_(Traffic_Noise_Overlay)&amp;diff=45418&amp;oldid=prev"/>
		<updated>2022-02-25T11:55:53Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{Construction attributes|&amp;lt;onlyinclude&amp;gt;{{Construction attributes|type=row |group=Traffic Noise Overlay| unit=dB(A)       | attribute=TRAFFIC_NOISE_SIGNA    | description=Diffe...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Construction attributes|&amp;lt;onlyinclude&amp;gt;{{Construction attributes|type=row&lt;br /&gt;
|group=Traffic Noise Overlay| unit=dB(A)       | attribute=TRAFFIC_NOISE_SIGNA    | description=Difference in noise intensity of vehicles at their reference speed. Effectively a flat modifier in noise.&lt;br /&gt;
    &lt;br /&gt;
}}&amp;lt;/onlyinclude&amp;gt;}}&lt;br /&gt;
&lt;br /&gt;
{{article end&lt;br /&gt;
|notes=&lt;br /&gt;
&lt;br /&gt;
|howtos=&lt;br /&gt;
* [[How to add and remove an Attribute]]&lt;br /&gt;
|seealso=&lt;br /&gt;
* [[Traffic Noise Overlay]]&lt;br /&gt;
* [[Noise sigma (Function Value)]]&lt;br /&gt;
}}&lt;/div&gt;</summary>
		<author><name>Rudolf@tygron.nl</name></author>
	</entry>
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