172
4 “Manuale d’uso del foglio di lavoro Excel per il calcolo del RIE” – Comune di Bolzano – Ufficio
Tutela dei Beni Ambientali.
It uses the same action categories envisaged by the BAF (yards with green
areas or permeable areas, green roofs or green walls) and those added by the
GSF (rainwater collection, trees and bushes, urban agriculture), enlarging
them by means of in-depth technical details. From a quantitative point of
view, it is absolutely similar to the BAF, although it has a much more specific
approach (the administration provides a spreadsheet for processing the index).
The peculiarity of the Green Factor is to carry out a cost analysis relative
to each single action, in order to simplify the cost/benefit estimate, and it
attributes bonuses for certain actions, such as improving the landscape publicly visible.
Seattle was the first American city to apply an index of this type, later it has
served as a model for other cities, such as Bellingham, Portland, Chicago,
DC, Bewark (etc.).
Building Impact Reduction Index (RIE) – Bolzano
Since 2004, the Municipality of Bolzano has been applying a Building Impact
Reduction index (RIE), which defines the ratio between green areas and nongreen areas, within the framework of its Building Regulations. The index
applies to all newly built elements and on actions involving existing buildings,
as well as actions which involve external surfaces exposed to rainwater. From
a qualitative point of view, the index aims to reorder rainwater and lower
urban temperatures. The index is mostly based on permeability of materials,
assessing the presence of green surfaces (agricultural, non-agricultural or for
sports facilities), trees, water bodies, partially permeable grounds and green
roofs. From a quantitative point of view, the calculation algorithm is slightly
more complex than the one used for the previous indexes, and results in a
value between 0 and 11 (approximately,
4 the administration provides a spreadsheet for calculating the index). The higher the value, the better the result
obtained in the building lot planning. Depending on the various actions to
implement, minimum values of the index are set between a minimum of 1.5
to a maximum of 4.0.
What is peculiar in the RIE is the technical analysis of various types of
green hanging covers on roofs (synthetically: intensive and extensive).
S. Zauli Sajani et al.
4 “Manuale d’uso del foglio di lavoro Excel per il calcolo del RIE” – Comune di Bolzano – Ufficio
Tutela dei Beni Ambientali.
It uses the same action categories envisaged by the BAF (yards with green
areas or permeable areas, green roofs or green walls) and those added by the
GSF (rainwater collection, trees and bushes, urban agriculture), enlarging
them by means of in-depth technical details. From a quantitative point of
view, it is absolutely similar to the BAF, although it has a much more specific
approach (the administration provides a spreadsheet for processing the index).
The peculiarity of the Green Factor is to carry out a cost analysis relative
to each single action, in order to simplify the cost/benefit estimate, and it
attributes bonuses for certain actions, such as improving the landscape publicly visible.
Seattle was the first American city to apply an index of this type, later it has
served as a model for other cities, such as Bellingham, Portland, Chicago,
DC, Bewark (etc.).
Building Impact Reduction Index (RIE) – Bolzano
Since 2004, the Municipality of Bolzano has been applying a Building Impact
Reduction index (RIE), which defines the ratio between green areas and nongreen areas, within the framework of its Building Regulations. The index
applies to all newly built elements and on actions involving existing buildings,
as well as actions which involve external surfaces exposed to rainwater. From
a qualitative point of view, the index aims to reorder rainwater and lower
urban temperatures. The index is mostly based on permeability of materials,
assessing the presence of green surfaces (agricultural, non-agricultural or for
sports facilities), trees, water bodies, partially permeable grounds and green
roofs. From a quantitative point of view, the calculation algorithm is slightly
more complex than the one used for the previous indexes, and results in a
value between 0 and 11 (approximately,
4 the administration provides a spreadsheet for calculating the index). The higher the value, the better the result
obtained in the building lot planning. Depending on the various actions to
implement, minimum values of the index are set between a minimum of 1.5
to a maximum of 4.0.
What is peculiar in the RIE is the technical analysis of various types of
green hanging covers on roofs (synthetically: intensive and extensive).
S. Zauli Sajani et al.