# Basic Usage

Ops 'OB Mobility' page seeded with realistic OPFlow-spec sample data: 4 vans (OB01/OB04/OB05/OB10 with the spec's tiered tech specs - OB10 is the 26-cam UHD 4K flagship, OB05 is the 6-cam HD 1080I lightweight). City Schedule + Timeline cells reproduce the OB10 "Al Akhdoud vs Al Batin" two-day block at Al Bukayriyah (Wed = rigging/yellow, Thu = production/ green) called out at OPFlow lines 3398-3403 / 3463-3466. Monthly Stats validates the spec's reverse-engineered utilisation formula at line 3543 (OB10: 2 active days / 31 days in May = 6.5%). Default tab is 'fleet'.