Changes

==Total Cost & Design Summary==

==Total Cost & Design Summary==

As previously discussed the three [[Permeable Pavement]] configurations total cost summary vary greatly dependent on whether you want your feature to possess full infiltration, no infiltration, or partial infiltration. In short the most expensive of these options is the [[Bioretention: Partial infiltration]] option ($113,800.83 vs. $109,113.76 - no infiltration and $80,392.33 - full infiltration). The same can be said for construction + associated retrofit costs with each configuration design ($132,008.97 vs. $126,571.96 - no infiltration and $93,255.10 - full infiltration) This configuration allows for the greatest storage volume (187.5 m³) compared to its counterparts at 145³ for no infiltration and 107.5³ for full infiltration; all while having the exact same surface area footprint of 250m². As a note it is important to understand your site's surrounding native soil infiltration rate to ensure you are selecting the appropriate design.<br>

As previously discussed the three [[Permeable pavement]] configurations total cost summary vary greatly dependent on whether you want your feature to possess full infiltration, no infiltration, or partial infiltration. In short the most expensive of these options is the '''Bioretention: No infiltration''' option ($113,800.83 vs. $109,113.76 - no infiltration and $80,392.33 - full infiltration). The same can be said for construction + associated retrofit costs with each configuration design ($132,008.97 vs. $126,571.96 - no infiltration and $93,255.10 - full infiltration) This configuration allows for the greatest storage volume (187.5 m³) compared to its counterparts at 145³ for no infiltration and 107.5³ for full infiltration; all while having the exact same surface area footprint of 250m². As a note it is important to understand your site's surrounding native soil infiltration rate to ensure you are selecting the appropriate design.<br>

A final note in the accuracy of the LCCT. A follow up sensitivity analysis study was conducted by CVC & STEP back in 2019 to test the tool's accuracy. The analysis took designs from 6 completed projects (4 [[bioretention]], 1 [[permeable pavement]], and 1 [[infiltration trench]]), and ran them through the tool comparing construction costing results from the LCCT to actual construction costs for the projects. The accuracy target set for the tool was plus-or-minus 30% of actual construction costs.<br>

A final note in the accuracy of the LCCT. A follow up sensitivity analysis study was conducted by CVC & STEP back in 2019 to test the tool's accuracy. The analysis took designs from 6 completed projects (4 [[bioretention]], 1 [[permeable pavement]], and 1 [[infiltration trench]]), and ran them through the tool comparing construction costing results from the LCCT to actual construction costs for the projects. The accuracy target set for the tool was plus-or-minus 30% of actual construction costs.<br>