This an online data visualization for runoff allowance balance in Stormwater Management Planning Support System for Trading Runoff Abatement Credits (SMPSS-TRAC).
Layers: Congress Run sub-watershed boundary (study area), Block-group boundary with demographic data, Runoff allowance balance for different scenarios

Baseline scenario: existing land use without any green infrastructure (GI) installation
Alter1 scenario: installed rain barrels on all suitable parcels
Alter2 scenario: installed rain barrels and rain gardens on all suitable parcels
Alter3 scenario: installed rain barrels, rain gardens, and shared detention basins on all suitable parcels
Alter4 scenario: installed rain barrels, rain gardens, shared detention basins, and porous pavements on all suitable parcels

Runoff allowance balance = the cap (allowed discharging runoff amount of a parcel) - the actual runoff discharged from a parcel (after GI installation). 

The Block-group boundary is to present the different races in total population, for example, white, black and African American, Asian, and two and more races. Other data include unemployment rate (%), house occupation rate (%), household median income, and population density (per square mile).
[]
nan
nan
nan