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Expressing a slope in degrees requires using the ''tangent'' trigonometric function.  
 
Expressing a slope in degrees requires using the ''tangent'' trigonometric function.  
 
e.g.:<math>\tan \theta =\left ( \frac{4\ m}{12\ m} \right ); \theta =\tan^{-1}\left ( 0.33 \right )=18.3^{\circ}</math>
 
e.g.:<math>\tan \theta =\left ( \frac{4\ m}{12\ m} \right ); \theta =\tan^{-1}\left ( 0.33 \right )=18.3^{\circ}</math>
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'''[[Slope_table| Quick reference table]]'''
    
==Normal range of slopes==
 
==Normal range of slopes==
The Accessibility for Ontarians with Disabilities Act<ref>Ontario. O. Reg. 191/11: INTEGRATED ACCESSIBILITY STANDARDS, 2011. https://www.ontario.ca/laws/regulation/r11191.</ref> provides a bare minimum to which public spaces must be designed. Consider designing landscapes to universal design principals instead<ref>Universal Design.com. 2018. “The Leading Source for News and Information on Universal Design - The Leading Source for News and Information on Universal Design.” 2018. http://www.universaldesign.com/.</ref><ref>Institute for Human Centered Design. 2018. “Principles.” 2018. https://www.humancentereddesign.org/inclusive-design/principles.</ref>.  
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The Accessibility for Ontarians with Disabilities Act<ref>Ontario. O. Reg. 191/11: INTEGRATED ACCESSIBILITY STANDARDS, 2011. https://www.ontario.ca/laws/regulation/r11191.</ref> provides a bare minimum to which public spaces must be designed. e.g. cross slope not to exceed 2 %.
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Consider designing landscapes to universal design principals instead<ref>Universal Design.com. 2018. “The Leading Source for News and Information on Universal Design - The Leading Source for News and Information on Universal Design.” 2018. http://www.universaldesign.com/.</ref><ref>Institute for Human Centered Design. 2018. “Principles.” 2018. https://www.humancentereddesign.org/inclusive-design/principles.</ref>.  
    
{|class= "wikitable" "style=text-align: center;"
 
{|class= "wikitable" "style=text-align: center;"
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*[[File:Matusik 2004.pdf]]
 
*[[File:Matusik 2004.pdf]]
 
*[[File:Tiner 2014.pdf]]
 
*[[File:Tiner 2014.pdf]]
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*http://www.slopemeter.com/images/Slope_Conversion_Tables.xls - external resource
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[[Category: Calculations]]
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