The move aims to limit road construction and excavations, which hinder traffic flow.
The municipality submitted their proposal during a workshop held in Riyadh in late-April 2014 to monitor excavation work.
The study revealed some of the most prominent problems resulting from roadwork, which mainly include congestion and weakening road infrastructure through repetitive digging operations at the same locations.
The study found that most contractors are not committed to the terms of their contracts, have failed to deliver tangible results and have done more harm than good to road infrastructure.
A single tunnel will help in distributing services, such as water and electricity networks, water floods drainage networks, communication lines, irrigation pipes, hard waste suction pipes and fire extinguishing network pipes, the study said.
The study found that soil and cement reinforcement is crucial prior to embarking on drilling or digging operations.
There are 13 bodies that are authorised to acquire licenses for digging and excavation works on the streets of Riyadh. Four of these companies are affiliated with the city’s municipality, in addition to the High Commission for the Development of Riyadh, the Traffic Department, the Ministry of Transportation, the General Organisation for Seawater Desalination, the National Water Company, communication companies and the Saudi Electricity Company.
