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Data quality report

Stagecoach_Chester_Liverpool_20200419

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

153

Bus lines

99%

AMBER
Data quality

18

Critical observations

769

Advisory observations

Contents

Critical observations (18)

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

Stop (3)

Number of observations	Observation category
3	Incorrect stop type

Timing (3)

Number of observations	Observation category
1	Fast timing between timing points
2	Last stop is not a timing point

Data set (12)

Number of observations	Observation category
12	Missing block number

Advisory observations (769)

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 (103)

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

Timing (622)

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

Journey (44)

Number of observations	Observation category
10	Expired lines
34	Journey overlap