Changes

==Design==

==Design==

<h3>Modeling permeable paving in the Treatment Train Tool</h3>

===Modeling permeable paving in the Treatment Train Tool===

'''[[Permeable paving: TTT]]'''

'''[[Permeable paving: TTT]]'''

<h3>Sizing Stone Reservoirs</h3>

===Sizing Stone Reservoirs===

'''[[Permeable paving: Sizing and modeling]]'''

'''[[Permeable paving: Sizing and modeling]]'''

<h3>Materials</h3>

===Materials===

The manufacturer should be consulted for the design specifications of their product. In pervious concrete and porous asphalt systems, the concrete or asphalt mix specifications and construction procedure are key to proper functioning. These systems require well trained and experienced contractors for installation.<br>

The manufacturer should be consulted for the design specifications of their product. In pervious concrete and porous asphalt systems, the concrete or asphalt mix specifications and construction procedure are key to proper functioning. These systems require well trained and experienced contractors for installation.<br>

'''[[Specifications]]'''

'''[[Permeable paving: Specifications|Specifications]]'''

<h4>Stone Reservoir</h4>

====Stone Reservoir====

The stone reservoir must meet both runoff storage and structural support requirements.

The stone reservoir must meet both runoff storage and structural support requirements.

The bottom of the reservoir should be level so that water infiltrates evenly. If the system is not designed for infiltration, the bottom should slope at 1 - 5% toward the underdrain.  

The bottom of the reservoir should be level so that water infiltrates evenly. If the system is not designed for infiltration, the bottom should slope at 1 - 5% toward the underdrain.  

{{:Gravel}}

{{:Gravel}}

<h4>Geotextile</h4>

====Geotextile====

{{:Geotextiles}}

{{:Geotextiles}}

<h3>Landscaping</h3>

===Landscaping===

Landscaping plans should reflect the permeable pavement application. Landscaping areas should drain away from permeable pavement to prevent sediments from running onto the surface. Urban trees also benefit from being surrounded by permeable pavement rather than impervious cover, because their roots receive more air and water. Permeable pavers used around the base of a tree can be removed as the tree grows.

Landscaping plans should reflect the permeable pavement application. Landscaping areas should drain away from permeable pavement to prevent sediments from running onto the surface. Urban trees also benefit from being surrounded by permeable pavement rather than impervious cover, because their roots receive more air and water. Permeable pavers used around the base of a tree can be removed as the tree grows.