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Data quality report

Uno_Hatfield_St Albans_20190518_4

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

53

Bus lines

90%

RED
Data quality

89

Critical observations

51

Advisory observations

Contents

Critical observations (89)

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

Timing (46)

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

Data set (43)

Number of observations	Observation category
43	Missing block number

Advisory observations (51)

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 (32)

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

Timing (18)

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

Journey (1)

Number of observations	Observation category
1	Expired lines