Question juridique clé
Whether the compensation claim arose only after completion of the noise barriers, and which date controls valuation and interest
Solution extraite
The relevant date is 1995-11-15, when the noise protection works were completed; the 1987 OIF entry-into-force date was not decisive.
Motifs extraits
The claim concerned only residual excessive immissions after remediation. Because the barriers were finished in 1995 and the excessive immissions persisted thereafter, the expropriated neighbor rights were effectively taken as of that date, which also governs interest.