整せい備び新しん幹かん線せん

noun

planned Shinkansen extensions; five Shinkansen routes proposed in 1973

Refers specifically to the five Shinkansen route extensions planned under the 1973 Nationwide Shinkansen Railway Development Act. Often used in policy, construction, and regional development contexts.

• 整せい備び新しん幹かん線せんの建けん設せつには多た額がくの費ひ用ようがかかる。

  Construction of the planned Shinkansen extensions requires enormous costs.

• 整せい