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Data quality report

Nottingham City Transport_Clifton_West Bridgford_20210117_4

83

Bus lines

99%

AMBER
Data quality

77

Critical observations

40

Advisory observations

Contents

Critical observations (77)

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

Timing (77)
Number of observations Observation category
12 Fast timing between timing points
3 First stop is not a timing point
62 Last stop is not a timing point

Advisory observations (40)

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 (19)
Number of observations Observation category
8 Missing stops
11 Stop(s) are not found in NaPTAN
Timing (11)
Number of observations Observation category
11 No timing point for more than 15 minutes
Journey (10)
Number of observations Observation category
2 Duplicate journeys
8 Journey overlap