At 10.45am on Sunday, officers attached to Central West Highway Patrol were conducting a patrol of the Newell Highway at Parkes when they observed a B-double travelling north, about five kilometres south of Alectown.

"Police will allege the B-double was swerving heavily from the north bound lanes into the south bound lanes, before momentarily leaving the roadway causing both trailers to sway dramatically," officers said.

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"Officers stopped the B-double in the main street of Alectown and spoke with the driver."

Police said the driver, a 26-year-old man, returned a negative result to roadside alcohol and drug tests.

Among the police charges he received were: dangerous driving, negligent driving, drive without proper control of vehicle and not keep left of centre two-way road.

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He was granted conditional bail to appear before Parkes Local Court in October.

Western region traffic tactician, Acting Inspector Kelly Wixx of the Traffic and Highway Patrol Command said all motorists have a responsibility to keep other road users safe when behind the wheel.

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"Heavy vehicles have such a presence on our roads and as such a huge responsibility," she said.

"Lack of judgement can cause catastrophic consequences and significant devastation to other road users.

"This applies to all drivers, not just those of heavy vehicles."