RIYADH: Saudi Crown Prince Mohammed bin Salman has ordered the development of main roads in the heart of Riyadh in order to upgrade the city’s transportation system.  The project aims to transform Riyadh to be a major hub in providing sustainable transportation services as well as logistics services in the Middle East, the Saudi Press Agency said. The program will work on developing junctions between Riyadh’s ring roads and main routes. It will develop 400 kilometers of road network, by adding new roads and upgrading existing junctions. Among the main projects will be: *Improving the First Ring Road with an additional length of 80 kilometers and continued work on the Second Ring Road.  *Developing the main junctions of the King Fahd Road to increase its capacity.  *Increasing the capacity of the Imam Saud bin Faisal Road from King Khalid Road until its junction with the second eastern ring road, with a length of 23 kilometers. *Improving the Prince Turki bin Abdulaziz I road and its extension to the south until its meeting point with the second southern ring road, with a length of 45 kilometers. *Developing the extension of the Abu Bakr Al-Siddiq Road to the south from Makkah Al-Mukarramah Road to the Eastern Ring Road, and its extension south to the Dhahran Street to the Southern Ring Road with a length of 17 kilometers. *Developing the Othman Bin Affan Road from King Salman Road to Al-Urouba Road, and from Makkah Al-Mukarramah Road to the the Southern Ring Road with a length of 16 kilometers.