Traffic Control

Traffic control refers to statutory administrative enforcement measures executed by public security traffic management authorities to safeguard road safety and maintain smooth traffic flow. It is implemented during emergencies, natural disasters, large-scale public events, or severe weather conditions to impose restrictions, prohibitions, directional shifts, or designated route diversions on vehicles and pedestrians within specific areas and timeframes. It serves as an essential regulatory mechanism for the state to exercise road traffic jurisdiction, maintain public order, and ensure road user safety.

Core Classifications and Applicable Scenarios

Based on different operational triggers and traffic management requirements, traffic control is primarily categorised into the following statutory types: 

Temporary and Emergency Traffic Control:

Severe weather emergency control: When extreme weather conditions—such as heavy blizzards, dense fog, road icing, or typhoons—severely impair visibility or cause hazardous road conditions on expressways and elevated highways, traffic authorities may enforce highway closures, vehicle diversions, or convoy-escorted speed limits. 

Traffic accident and emergency response control: Following major road collisions, hazardous chemical spills, natural disasters, or sudden public safety incidents, temporary road closures and advance diversions are enacted around the scene to facilitate emergency rescue operations, forensic investigations, and site clearance.

Event and Security Traffic Control: 

Major events and sports security: During national-level events, international conferences, marathon races, or large-scale public celebrations, authorities enforce phased road closures or one-way traffic schemes around core venues.

Roadworks and construction control: When major road resurfacing, utility network upgrades, or bridge construction works compromise traffic safety, statutory long-term or overnight lane closures and diversions are put in place. 

Routine Regional Traffic Control:

Statutory measures implemented to ease traffic gridlock and reduce environmental impacts within specific central business districts, commercial areas, or tourist zones. These include area-based vehicle restrictions, number-plate rotation schemes, heavy commercial vehicle (lorry) permit requirements, or scheduled access bans for non-motorised vehicles and pedestrians.

Statutory Authority and Enforcement Bodies

As an administrative coercive measure that restricts the public's freedom of movement, the establishment and execution of traffic control are governed by strict legal procedures and jurisdiction limits:

Authorised Enforcement Bodies:

The traffic management departments of public security authorities at or above the county level serve as the statutory enforcement bodies. Unauthorised organisations or individuals are strictly prohibited from closing roads or imposing traffic restrictions. 

Notice and Announcement Procedures:

Planned traffic control: When traffic control is required for large-scale public events or scheduled long-term roadworks, traffic authorities must issue prior public notices detailing the effective duration, affected road corridors, diversion routes, and targeted vehicle categories. 

Emergency traffic control: In the event of unexpected incidents or severe weather necessitating urgent intervention, on-scene traffic police may set up temporary physical cordons and traffic diversions, with real-time advisories broadcasted via Variable Message Signs (VMS), GPS navigation apps, and mainstream media outlets. 

Compliance Requirements and Legal Liabilities

When navigating traffic control zones, all road users are legally obliged to adhere to the following rules:

Compliance with On-Site Directives and Diversion Signs:

When encountering traffic control zones, motorists and pedestrians must strictly follow the manual directions of traffic police officers and adhere to traffic signs, warning boards, or detour indicators. Forcibly breaching roadblocks, crossing physical barriers, or entering closed road corridors is strictly prohibited.

Legal Penalties and Consequences: 

Individuals who breach traffic control regulations or forcibly proceed against lawful instructions are liable to administrative penalties by enforcement authorities. Those causing severe traffic gridlock, traffic collisions, or obstructing public officers in the execution of their duties will face formal legal prosecution.