Elon Musk’s tunnel construction company, The Boring Company, is planning to propose a new underground transport project in Riyadh. The idea is to help reduce traffic in the city by building a network of underground roads. This announcement comes just a day before Musk's Tesla officially launches its electric vehicles in Saudi Arabia on April 10. Riyadh is one of the fastest-growing cities in the world. Its population is expected to jump to nearly 10 million by 2030 (+35% in 8 years). With more people and cars on the road, the city is looking for smart ways to manage traffic...