The impact of geomorphological processes on the land road network in Muthanna Governorate

Abstract

Studying the impact of geomorphological processes on the land road network is one of the important studies in the field of applied geomorphology, as this research addressed one of the main problems in Muthanna Governorate, which is the impact of geomorphological processes on transportation roads, represented by weathering processes (physical, chemical, and biological) and erosion processes (water and wind) , from which the road network suffers to a very large extent. Especially since most of the lands of Al-Muthanna Governorate are located within the desert plateau, as geomorphological processes of various kinds play a prominent role in influencing the land road network in the governorate, which leads to the continuous deterioration of these roads and the rise in their maintenance costs. The study reached results, including that not taking geomorphological aspects into account in building transportation roads had a major impact on the poor quality of most transportation roads. The variation in climate seasons has a very influential role on the road networkThe study recommended taking into account the geomorphological and geological aspects and components in constructing land roads, including (the nature and type of rocks and soil, groundwater movement, encroachment of sand dunes, wind erosion, and dust storms). Adopting modern engineering methods and building materials resistant to environmental factors in building and extending transportation roads in the governorate.