Saldhigyada isku-dhafan ee DC-gu waxay ku habboon yihiin saldhigyada dadweynaha ee magaalooyinka ( basaska, tagaasida, baabuurta rasmiga ah, baabuurta fayadhowrka, baabuurta saadka, iwm.).Saldhigyada dadweynaha ee magaalada (baabuurta gaarka loo leeyahay, rakaabka, basaska, iwm.) waxaa ka mid ah baarkinno kala duwan, xarumo ganacsi, goobo ganacsi oo koronto ah, iwm;Xaaladaha ay DC u baahan tahay dallaca degdega ah, sida jidadka waaweyn ee isku xidha iyo saldhigyada dallaca waddooyinka, waxay si gaar ah ugu habboon tahay in si degdeg ah loo geeyo meelo xaddidan.