According to the proposal of the Maintenance Board, the construction unit will organize a corrugated iron barrier combined with a B40 net to repair the road surface structure on the section from Km9+00 - Km10+00. The construction work is divided into 4 segments, carried out according to the construction method of half of the road surface. Each barrier section is 7.2m wide and 500m long; the remaining road surface is 7.3m wide for vehicles to travel in 2 lanes through the construction area. Only when the construction is completed can we continue to move to the next section.
The road signaling system will be fully installed, including construction site signs, narrowed roads, "slow" signs, lighting systems, and night warning lights according to TCCS 14:2016/TCDBVN standards. Manocanh combines warning lights arranged in front of the barrier to increase recognition for traffic participants.
Regarding remote traffic flow, the authorities will place signs I.441 at locations 500m, 200m and 50m away from the construction area; at the same time, arrange signs limiting speed to 80km/h (500m from the starting point of the barrier) and 60km/h (300m from the starting point of the barrier). The hat top system combined with reflective wire is arranged before - behind the barrier area, connecting from the corrugated iron guardrail on the median strip and the roadside to the edge of the barrier with a length of 200m. Signs and warning devices will be moved according to the progress of each construction stage.
The construction period lasts from December 10, 2025 to January 15, 2026.
