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Figure VII 4 -
Rearward Amplification:
Current and Scenario Vehicles

Arrows showing "Improvement" pointed leftward, and the following table

Rearward Amplification:
Current Vehicles
Current Vehicles Rearward Amplification
STAA Double: van, 28x28, 80,000 Pounds 2.15
Tractor Semi Trailer, van, Single- Trailer, 80,000 Pounds 1.244
Rocky Mountain Double, hopper, 35x20, 105,500 Pounds 2.294
Rocky Mountain Double, hopper, 38x20, 109,250 Pounds 1.859
Rocky Mountain Double, hopper, 44x31, 123,000 Pounds 1.619
Rocky Mountain Double, hopper, 38x28, 123,000 Pounds 1.663
Rocky Mountain Double, hopper, 38x27, 127,500 Pounds 1.678
Rocky Mountain Double, hopper, 38x27 128,000 Pounds 1.669

Rearward Amplification:
Scenario Vehicles
Scenario Vehicles Rearward Amplification
Turnpike Double, van, 45x45, 129,000 Pounds 1.37
Turnpike Double, van, 48x48, 129,000 Pounds 1.28
Rocky Mountain Double, van, 48x28, 117,000 Pounds 1.58
Rocky Mountain Double, van, 48x28, 113,000 Pounds 1.53
Triple A-train, van, 28x28x28, 118,500 Pounds 2.719
Triple C-train, van, 28x28x28, 118,500 Pounds 1.66
Truck Trailer, tanker, 38, 114,300 Pounds extended hitch offset 1.71
Truck Trailer, tanker, 38, 114,300 Pounds 1.45
Rocky Mountain Double, tanker, 41x22, 117,000 Pounds 1.92
B-train, tanker, 41x22, 117,000 Pounds 1.13

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