Changes

#Case that our infrastructure is degrading, hard to upkeep, so when we are changing to new infrastructure, change to LID

#Case that our infrastructure is degrading, hard to upkeep, so when we are changing to new infrastructure, change to LID

#Old infrastructure using old methods

#Old infrastructure using old methods

*“The built environment of an existing city is continuously changing by maintenance, modification and renewal. This inherent dynamics of the urban environment provide opportunities for retrofitting blue-green measures synergistically with other structural changes in the urban form. Opportunities for retrofitting arise for instance when existing paved areas are removed for works on cables or for sewer rehabilitation, when buildings are renovated, when infill development takes place, and with urban renewal projects. Linking implementation of blue-green climate adaptation measures with such ‘windows of opportunity’ is greatly beneficial for a reduction of implementation costs.” <ref name=Voskamp>Voskamp, I. M., and F. H M Van de Ven. 2015. “Planning Support System for Climate Adaptation: Composing Effective Sets of Blue-Green Measures to Reduce Urban Vulnerability to Extreme Weather Events.” Building and Environment 83. Elsevier Ltd:159–67. https://doi.org/10.1016/j.buildenv.2014.07.018.</ref>

*“The built environment of an existing city is continuously changing by maintenance, modification and renewal. This inherent dynamics of the urban environment provide opportunities for retrofitting blue-green measures synergistically with other structural changes in the urban form. Opportunities for retrofitting arise for instance when existing paved areas are removed for works on cables or for sewer rehabilitation, when buildings are renovated, when infill development takes place, and with urban renewal projects. Linking implementation of blue-green climate adaptation measures with such ‘windows of opportunity’ is greatly beneficial for a reduction of implementation costs.” <ref name=Voskamp/>

===Watershed-scale approaches to LID===

===Watershed-scale approaches to LID===

Single LIDs placed scarcely may not be able to tackle climate change. For this reason, there has to be a (sub)watershed scale effort.  

Single LIDs placed scarcely may not be able to tackle climate change. For this reason, there has to be a (sub)watershed scale effort.