Reduce memory of summarize step by dropping unused variables before wide merge - #1125

Reduce memory of summarize step by dropping unused variables before wide merge#1125

i-am-sijia wants to merge 3 commits into

ActivitySim:mainActivitySim/activitysim:mainfrom

wsp-sag:reduce-summarize-memwsp-sag/activitysim:reduce-summarize-memCopy head branch name to clipboard