Fill in the Blanks CompleteOnline version Complete the words by JEFERSON CASTELLANOS SERRATE 1 purpose tertiary primary land arterial Mountainous street Expressway National Undulating local Type of roads , They are divided into two aspects : 1 . Based on its , they are that are divided into three types of roads ; they are , secundary and , and urban roads , they are five ; , street , sub - arterial street , collector's and street . 2 . Based on , they are 4 types ; Flat land , land , land and Sheer land .