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Data quality report

National Express West Midlands_Wolverhampton_Coventry_20220220_3

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

273

Bus lines

99%

AMBER
Data quality

323

Critical observations

3447

Advisory observations

Contents

Critical observations (323)

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

Timing (323)

Number of observations	Observation category
317	Fast timing between timing points
6	First stop is not a timing point

Advisory observations (3447)

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 (89)

Number of observations	Observation category
85	Missing stops
4	Stop(s) are not found in NaPTAN

Timing (3318)

Number of observations	Observation category
3318	No timing point for more than 15 minutes

Journey (40)

Number of observations	Observation category
2	Duplicate journeys
38	Journey overlap