Kernrechtsfrage
Whether the old taxi concessions constitute vested rights protected by property guarantee and good faith.
Extrahierter Entscheid
The old concessions were not vested rights protected as alleged; the municipality could set a temporal limit and reform the regime.
Extrahierte Begründung
The right mainly concerned use of public ground as intensified common use, not an exclusive special-use concession. Even if a concession-like position existed, the authority could reassess it after a reasonable time. The 10-year transition and conversion option adequately respected legitimate reliance interests.