Labels:text | screenshot | vehicle | land vehicle | car OCR: TYPES Roman road (materials varied according to locality) OF ROAD Paving stones Stones in Curb set in mortar concrete Flat stones Broken stone and mortar Flexible pavement Bituminous surface [bitumen with sand or gravel) Subgrade Base course [sand, gravel or Sub-base crushed stone, often mixed with cement or bitumen) course Concrete road Granular Concrete with shoulder steel bars inset Sub-base
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 (Disc 1) (1995).iso/mac/technolo/340-2/340-2.png)