Trolley assisted haulage involves feeding power to haul trucks from overhead lines.

Trolley assist performance is defined by a separate Trolley Assist Rimpull curve in the Trucks tab.
Segments have a trolley property which can be toggled on or off for haul calculations.

To enable trolley assist:

Open SampleModelWithNodes from the samples folder.
Go Setup > Models > CAT785D
Go to the Rimpull graph and press "Copy to Clipboard"
Go to the Trolley Assist rimpull > add a new data set > toggle as active > "Paste from Excel"
Go to the Network tab > select some segments on the pit ramp
In the Properties tab, tick the "TrolleyAssist" property to true. The trolley assisted segments should now appear in green.

When the CAT785 travels over the trolley assisted segments, it will switch from its regular rimpull curve to the trolley assisted rimpull curve.

The trolley force must be enough to drive the truck up the ramp. As a rule of thumb, it should be comparable to the engine-driven force.

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