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Data quality report

Nottingham City Transport_Clifton_West Bridgford_20210530

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

84

Bus lines

99%

AMBER
Data quality

76

Critical observations

107

Advisory observations

Contents

Critical observations (76)

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

Timing (76)

Number of observations	Observation category
12	Fast timing between timing points
4	First stop is not a timing point
60	Last stop is not a timing point

Advisory observations (107)

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 (80)

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

Journey (8)

Number of observations	Observation category
4	Duplicate journeys
4	Journey overlap