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Data quality report

Arriva UK Bus_Crewe_Sale_20211219

• Please find your data quality observations below.
• What are the different type of observations?
• Download data quality report.csv

368

Bus lines

98%

AMBER
Data quality

60

Critical observations

441

Advisory observations

Contents

Critical observations (60)

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

Timing (2)

Number of observations	Observation category
2	Last stop is not a timing point

Data set (58)

Number of observations	Observation category
58	Missing block number

Advisory observations (441)

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 (31)

Number of observations	Observation category
31	Missing stops

Timing (410)

Number of observations	Observation category
3	Fast running time between stops
407	No timing point for more than 15 minutes