As boggler12 mention, The a17 RWG does not include 'downtown' it seems.
Here is the files that contain 'downtown' only:
courthouse_med_01.xml
courthouse_med_02.xml
mp_waste_bldg_governer_08.xml
police_station1.xml
post_office_med_01.xml
post_office_sm_01.xml
prison_01.xml...
