ヘイジュンカ is the principle of production leveling or smoothing within the Toyota Production System. It involves averaging out the production volume and mix over a fixed period to eliminate peaks and valleys in workload. This creates a predictable and stable manufacturing environment, which is a prerequisite for implementing ジャストインタイム (ジャストインタイム)方式と標準化された作業を効果的に実施した。

















