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Data quality report

D&G Bus_Crewe_Nantwich_20210901_35

216

Bus lines

89%

RED
Data quality

197

Critical observations

120

Advisory observations

Contents

Critical observations (197)

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

Data set (197)
Number of observations Observation category
197 Missing block number

Advisory observations (120)

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 (34)
Number of observations Observation category
34 Missing stops
Timing (79)
Number of observations Observation category
79 No timing point for more than 15 minutes
Journey (7)
Number of observations Observation category
1 Expired lines
6 Journey overlap