Table describing typical rail possessions:
| Type of Possession | Duration | Typical Uses | Key Characteristics |
|---|---|---|---|
| Weekend Possession | 48-54 hours | Track replacement, bridge works, signaling upgrades | Starts late Friday/Saturday, ends early Monday |
| Bank Holiday | 72-96 hours | Major infrastructure works, station renovations | Takes advantage of reduced commuter traffic |
| Blockade | 1-8 weeks | Complete route modernization, major engineering works | Full line closure, replacement bus service |
| Night Possession | 4-8 hours | Routine maintenance, inspections, minor repairs | Between last and first service |
| Christmas/Holiday | 1-2 weeks | Complex engineering projects, multiple work sites | During reduced holiday service period |
| Midweek Off-Peak | 4-8 hours | Emergency repairs, urgent maintenance | During low-traffic periods |
| Single Line Working | Variable | Track maintenance while keeping service | One track remains operational |
| Rules of the Route | 2-4 hours | Regular inspections, light maintenance | Pre-planned maintenance windows |
