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Data quality report

Arriva UK Bus_Colchester_Welwyn Garden City_20230108_28

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

314

Bus lines

91%

AMBER
Data quality

226

Critical observations

233

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 (233)

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.

Stop (66)

Number of observations	Observation category
66	Missing stops

Timing (155)

Number of observations	Observation category
1	Fast running time between stops
148	No timing point for more than 15 minutes
6	Slow running time between stops

Journey (12)

Number of observations	Observation category
12	Expired lines