15 NREL Changelog 
Version date: 2021-12-08 
 
Table name changes: 
 
    2015-pr2-hhsurvey-household.csv renamed to survey_household. 
    2015-pr2-hhsurvey-person.csv renamed to survey_person. 
    2015-pr2-hhsurvey-trips.csv renamed to survey_trip. 

Column name changes: 
 
    hhid renamed to sampno. 
    personid renamed to perno. 
    vehnum renamed to vehno. 
    tripid renamed to tripno. 
    placeno renamed to plano. 
    vehicle_details_year renamed to veh_year. 
    vehicle_details_make renamed to veh_make. 
    vehicle_details_model renamed to veh_model. 
    gdist renamed to distance_mi. 
    h_zip renamed to home_zipcode. 
    prev_home_loc_zip renamed to prev_home_loc_zipcode. 
    work_zip renamed to work_zipcode. 
    school_zip renamed to school_zipcode. 
    prev_work_loc_zip renamed to prev_work_loc_zipcode. 
    carshare_zipcar renamed to carshare_zipcode. 
    share_freq_zipcar renamed to share_freq_zipcode. 
    zip_start renamed to start_zipcode. 
    zip_end renamed to end_zipcode. 

Column redactions: 
 
    d_taz2010
    work_bg
    veh_model
    school_bg
    work_tractprev_work_taz2010school_taz2010
    o_tract
    prev_work_tract
    smartphone_ip9_r
    o_taz2010
    work_tract
    h_taz2010
    h_bg
    d_tract
    prev_home_taz2010
    h_block
    h_tract
    work_taz2010
    school_tract
    smartphone_dr14_r
    prev_work_bg
    o_bg
    d_bg

Column additions: 
 
    
