Kuverengera, senzira itsva yerubatsiro rwechiratidzo chetraffic traffic mumaguta, inowiriranisa nekuratidzwa kwemarambi emotokari.Inogona kupa nguva yasara yemwenje tsvuku, yero uye yegirini kune vatyairi uye shamwari.Inogona kuderedza kunonoka kwenguva kwemotokari dzinopfuura nemumharadzano uye nekuvandudza kushanda kwetraffic.Iyo kambani ichangobva kuvandudzwa countdown kuratidza ine masaizi matatu, 600 * 820mm, 760 * 960mm uye pixel tube kuratidza countdown (saizi inogona kugadziridzwa zvisina tsarukano).Saizi yega yega yakakamurwa kuita matatu ekuratidzira modhi: imwechete tsvuku kuratidza, tsvuku-girini kaviri-ruvara kuratidza uye tsvuku-yero-yegirini-mavara matatu kuratidza.