Accredited official statistics status of road reliability and congestion - GOV.UK
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Accredited official statistics status means that our statistics meet the highest standards of trustworthiness, quality and public value, and it is our responsibility to maintain compliance
with these standards.
The designation of statistics on road reliability and congestion statistics as accredited official statistics, formerly known as national statistics, was confirmed in July 2012 following a
full assessment against the Code of Practice for Statistics by the Office for Statistics Regulation. The methodology changes in 2015 to 2016 was reviewed by UKSA and deemed as not requiring
a formal re-assessment.
Since the latest review by the Office for Statistics Regulation, we have continued to comply with the Code of Practice for Statistics, and have made the following improvements: