PBA50scenarios

Plan Bay Area 2050 Scenarios

S21: Blueprint Basic

• This is the "base" scenario in the sense that we are doing it first and the others build off of it
• Uses s21 control total files
• Uses s21 zoning modifications: major upzoning in all growth geogs
• Has almost all strategies in

s20: Baseline for PBA50 (so the lower HH count without policy change)

• This is the "baseline" scenario in the sense that it doesn't have any pba50 change and so it also has far lower control totals
• Uses s20 control total files (these are minus the additional units built bc of housing policy in pba50)
• Uses s20 zoning modifications: these are minimal in that the do typical No Project treatment (UGB, upzoning within) but may also need UGB expansion to fit control totals
• Has no new strategies from PBA50

s22: Blueprint Plus Fix It First

• This is the higher funding scenario
• Uses s22 control total files
• Uses s22 zoning modifications: same as s21
• Adds/modifies these strategies:

s23: Blueprint Plus Crossing

• This is the higher funding scenario with the New Transbay Crossing
• Uses s23 control total files
• Uses s23 zoning modifications: slightly higher upzoning than s21 and s22 at a few new/upgraded stations
• Same strategies as s22