Downgrade risk assessment:

**Key Variables** - Grade percentage - Length of descent - Total weight being controlled - Brake type and capacity (engine brake, service brakes, trailer brakes) - Road surface and conditions

**Analysis Process** 1. Calculate braking demand based on weight and grade 2. Compare to available braking capacity 3. Account for brake fade on long descents 4. Identify runaway scenarios and escape routes 5. Plan speed management approach

**Risk Indicators** - Sustained grades over 6% - Descents exceeding 2 miles - No engine braking available - Drum brakes on trailer - Hot weather conditions

**Mitigation Measures** - Pre-descent brake checks - Mandatory cooling stops - Speed restrictions - Engine brake protocols - Identified runaway truck ramps

The consequences of brake failure on a heavy load are severe. Conservative analysis is appropriate.