On 2/10, the Traffic Police Department (CSGT) under the Ministry of Public Security proposed traffic reorganization on several expressways. Specifically, the proposal suggests increasing the minimum speed limit in lane 1 (the leftmost lane, adjacent to the median) by up to 20% of the maximum speed.

For example, on the Ha Noi - Hai Phong expressway, lane 1 currently has a maximum speed of 120 km/h and a minimum of 90 km/h. Under the proposed adjustment, the minimum speed would rise to 100 km/h. If an expressway's maximum speed is 100 km/h, the revised minimum speed would be 80 km/h.

The CSGT also proposes that vehicles in lane 1 must maintain a speed above the new minimum and below the maximum. Drivers failing to meet this speed requirement must move to lane 2 (immediately to the right of lane 1) or lane 3, allowing faster vehicles to use lane 1.

Proposed complete traffic organization on expressways. Photo: *CSGT*

This proposal follows an earlier CSGT initiative to pilot "passing lanes" on expressways. The goal is to optimize road capacity and enhance traffic safety.

Under this plan, lane 1 would be designated exclusively as a passing lane. Drivers would only enter this lane to overtake vehicles ahead. After completing the maneuver and ensuring a safe distance, drivers must return to the right-hand lanes. They are strictly prohibited from hogging or continuously driving in the passing lane if right-hand lanes are clear.

The proposal addresses a common issue: many heavy trucks, passenger buses, or other slow-moving vehicles frequently occupy the leftmost lane. This "snail-paced" driving reduces expressway throughput, impedes following traffic, and indirectly forces other vehicles into sudden right-hand overtaking maneuvers, increasing the risk of chain collisions.

The Ha Noi - Hai Phong expressway section passing through Ocean Park 1 and 2 urban areas. Photo: *Pham Chieu*

A CSGT representative stated that the "passing lane" proposal has been accepted by the Vietnam Road Administration. The administration has also sent official letters to management units of three expressways slated for pilot implementation: Ha Noi - Hai Phong, Phap Van - Cao Bo, and Vinh Hao - Phan Thiet.

Alongside adjusting road markings, signs, and electronic warning displays along the routes, authorities will upgrade artificial intelligence (AI) camera systems. These cameras will issue fines for intentional slow driving in the leftmost lane or improper lane changes.

Pham Chieu