Editing Inca road system (section)

====Roadway and pavement====
In the mountains and the high forests, precisely arranged paving stones or cobbles were used for paving, placing them with their flat face towards the top, trying to produce a uniform surface. 
Nevertheless, not all the roads were paved; in the Andean puna and in the coastal deserts the road was usually made using packed earth, sand, or simply covering grassland with soil or sand.<ref name="Cartwright"/> 
There is also evidence of paving with vegetable fibers such as in the road of Pampa Afuera in Casma (Áncash department, Peru).<ref name="guia"/>

The width of the roadway varied between {{convert|1|and|4|m|ft}},<ref name="D'Altroy2002a" />{{rp|245}} although some could be much wider, such as the {{convert|25|m|ft}} road leading to Huánuco Pampa. 
The Cusco to Quito portion of the Road system, which was the most trafficked one, had a width always exceeding {{convert|4|m|ft}} even in agricultural areas where the land had high value. Some portions reached a width of {{convert|16|m|ft}}.<ref>Brown, Jeff L. (2016). Highways to the Empire: the Inca road system" - Civil Engineering, January 2016</ref>
Near urban and administrative centers there is evidence of two or three roads constructed in parallel.<ref name ="Cartwright"/>
The maximum recorded width on the north coastal road is {{convert|35|m|ft}}, while the average width in the south coastal road is {{convert|8.5|m|ft}}.<ref name="guia"/>