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Data quality report

Notts & Derby Traction Co. Limited_Littleover_unknown_20171031_1

25

Bus lines

75%

RED
Data quality

75

Critical observations

103

Advisory observations

Contents

Critical observations (75)

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

Timing (51)
Number of observations Observation category
31 Fast timing between timing points
9 First stop is not a timing point
11 Last stop is not a timing point
Data set (24)
Number of observations Observation category
1 Incorrect NOC
23 Missing block number

Advisory observations (103)

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 (77)
Number of observations Observation category
12 Missing stops
65 Stop(s) are not found in NaPTAN
Timing (24)
Number of observations Observation category
24 No timing point for more than 15 minutes
Journey (2)
Number of observations Observation category
2 Expired lines