Which urban roads prohibit overtaking for motor vehicles?

[Nellie]

Motor vehicles are prohibited from overtaking on urban roads with heavy traffic flow. Below are precautions for overtaking: 1. Comprehensive observation of traffic conditions: Before overtaking, not only should you observe the traffic ahead and to the left, but also check the traffic behind through interior and exterior rearview mirrors. During overtaking, turn your head to observe the dynamics of the vehicle being overtaken. 2. Reasonable selection of overtaking timing: Overtake when oncoming traffic does not affect the maneuver. Before overtaking, ensure the oncoming vehicle is far beyond the overtaking distance so that passing the front vehicle won't be hindered by opposing traffic. 3. Accelerate and merge into the adjacent lane: Accelerate straight past the vehicle to be overtaken until reaching a safe distance, then merge back into the original lane.