Definition of judder bar in English:

judder bar

noun

NZ
  • A speed bump.

    • ‘Actually, once I'd insert them fully, I didn't notice I had them in at all… unless I was driving round lots of corners… or judder bars… oh my, the judder bars!’
    • ‘There were none of the modern judder bars to slow traffic, but the corrugations in unsealed roads especially on hills and on corners could have the same effect.’
    • ‘The Government plans to install judder bars or traffic islands on the main road around Rarotonga in an effort to curb speeding drivers.’
    • ‘Anyway just take it easy around Innes Common as it's only 40 (this speed limit is ridiculous, and as for those judder bars now!)’