With R4WO, the Flemish Government is investing in a safer and smoother R4, with attention to liveable residential areas and better cycling connections. This large‑scale project, the second largest construction site in Flanders after Oosterweel, covers both the west side of the Ghent–Terneuzen Canal (from Wondelgem to Zelzate) and the east side (from Oostakker to Wachtebeke).
The works include new bridges, tunnels and cycle paths, carefully designed to remain part of the public space for many years. According to the current schedule, the works will be completed at the beginning of 2031. It involves an investment of 726 million euros.