What is the meaning of aerial drone aerial photography of rural roads to draw arrows?

Provide navigation services. Aerial unmanned aerial vehicles (UAVs) take aerial photographs of arrows on rural roads to provide navigation services and help people find the correct road direction or indicate specific areas more conveniently. Due to the relatively few rural road networks and imperfect road signs, people often get lost or go in the wrong direction. Therefore, by drawing arrow marks on the road, the visualization effect of road traffic is enhanced, which makes it easier for drivers and pedestrians to find the correct road direction and reduce the occurrence of wrong roads.