OPEX Savings Sensitivity Matrix
Gross OPEX savings over 15 years · one variable flexed at a time
— UTILIZATION
BASE CASE - R59.4M
Lower Utilization (2,500 T/yr)
— DISTANCE
BASE · 1,200 km round-trip
Shorter Corridor (400 km round-trip)
— EXCHANGE RATE
BASE · USD/ZAR 19.50
Stronger ZAR (USD/ZAR 16.00)
R20M
R30M
R40M
R50M
Cumulative Gross OPEX Savings
by Milestone
Base case · 88 fewer trips/yr × R45,000 tariff
R19,800,000
Year 5
R3.96M × 5
R39,600,000
Year 10
R3.96M × 10
BASE CASE OPTIMUM
R59,400,000
Year 15
R3.96M × 15
Model Qualification & Exclusions
The R59.4M base case represents the maximum theoretical gross operational savings on a high-throughput 1,200 km corridor. The model explicitly excludes financing costs, asset depreciation profiles, and differential maintenance burdens between dedicated semi-trailers and skeletal ISO chassis combinations. Sensitivities will alter the payback crossover timeline.
Excluded from Model
Financing costs
Asset depreciation profiles
Differential maintenance burdens