The main advantage of road transport is that it is

The main advantage of road transport is that it is convenient and flexible. Road transport allows for easy and direct movement of goods and people from one location to another. It is not limited by specific routes or schedules, and can be used to transport goods of various sizes and types. Additionally, road transport can reach remote areas and is not affected by the availability of other modes of transport like railways or airways. The flexibility of road transport makes it a popular choice for both short and long distance travel and transportation of goods.