Partial replacement or complete renewal?
Both approaches are valid; they simply address different constraints.
|
Targeted replacement |
Complete renewal |
| Operational downtime |
Limited to the affected workstation, often manageable during a slow period. |
Longer, to be scheduled during a planned closure. |
| Work |
Minimal if the layout is retained. |
Opportunity to redesign the layout and traffic flow. |
| Line consistency |
Equipment of different ages and generations must coexist. |
A homogeneous system, simplifying supervision and maintenance. |
| Investment |
Spread out over time, station by station. |
Concentrated, but with visibility spanning several years. |
In practice, many centers proceed in stages, starting with the most resource-intensive station—often the brake test stand, because it involves civil engineering—and then gradually bringing the rest of the line up to standard.