When driving a bus in rainy conditions, is it appropriate to use the retarder or electric brake?

Question

DentroTest · Accepted Answer

The electric brake, or electromagnetic retarder, acts on the vehicle's auxiliary transmission and is usually adjusted through several intensity steps. When driving in rain, the asphalt becomes slippery and the grip of the tires decreases considerably. If the retarder is applied abruptly by engaging all the steps at once, excessive retarding torque is applied to the drive wheels, which can cause them to lock or slip and cause an uncontrolled skid. For that reason, it can be used, but always with prudence, gradually and step by step. The option stating that it gains effectiveness is false, since the retention capacity on the ground depends on the available grip, and the one stating that the weather is irrelevant ignores the basic principle of adapting driving and braking to the condition of the roadway.

When driving a bus in rainy conditions, is it appropriate to use the retarder or electric brake?

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