Road surface repair work (the second) within the Kokubunji area in 2018

Area of pavement replacement work = 1,120m², Area of milling and overlay (t = 10 cm) = 13,240 m²,
Area of milling and overlay (t = 5 cm) = 2,340 m², Length of pavement markings drawing = 4,800 m, Replacement of gutter inlet cap : 29 locations

This project involves repairing the road surface at four locations on National Route No. 4 (also known as New Route No. 4). This route has heavy traffic with a high proportion of large vehicles. In this project, the main challenges were ensuring safety during nighttime traffic control and managing the process effectively. Additionally, because the construction sites were scattered, coordination among multiple organizations was necessary.

During the construction, appropriate safety measures and process management were implemented to suit on-site conditions. Additionally, meetings among participating organizations were held promptly, leading to the successful completion of the project within the designated period without any accidents. When repairing the road surface, the on-site conditions, including cracks and wheel tracks, were thoroughly assessed. Based on this assessment, the use of crack-resistant asphalt, developed with new technology, and ultra-tough asphalt was actively recommended. These recommendations led to effective construction management and a high-quality finish.