1, traffic regulations: Jinan City has strict traffic regulations, including the prohibition of riding certain sections. These regulations are based on traffic safety considerations, such as narrow roads and large traffic flow.

2. Road conditions: Liu Jing Road has some road conditions, such as poor road quality and no bicycle lane, which is not suitable for cycling.

3. Mixed traffic: There are a lot of mixed traffic of motor vehicles and non-motor vehicles on Liu Jing Road, which leads to traffic congestion and increased accident risk. Therefore, cycling is forbidden to reduce traffic chaos and safety hazards.