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Data quality report

Arriva UK Bus_Colchester_Welwyn Garden City_20230108_24

326

Bus lines

92%

AMBER
Data quality

226

Critical observations

315

Advisory observations

Contents

Critical observations (226)

These observations are considered critical in terms of data quality. An operator should aim to have zero critical observations in their data.

Data set (226)
Number of observations Observation category
226 Missing block number

Advisory observations (315)

These observations suggest there may be an error in the data. However, for some types of services these may be intended by the operator. Advisory observations should be investigated and addressed. If the observation is a result of intended behaviour, an operator can suppress the observation.

Stop (87)
Number of observations Observation category
87 Missing stops
Timing (135)
Number of observations Observation category
1 Fast running time between stops
128 No timing point for more than 15 minutes
6 Slow running time between stops
Journey (93)
Number of observations Observation category
93 Expired lines