People baffled over 'odd' speed limit - but it's 'proven to slow down drivers'

A quirkily set speed limit on a road sign has left drivers and people alike confused over why a road sign wouldn't be set at a more conventional speed of 10mph or 20mph

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Wisconsin , United States , California , Etom Vanderbilt , Priya Raghubir , University Of California , , Speeding , Driving Standards Agency , Driving Test ,