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Data quality report

Uno_Welwyn Garden City_St Albans_20190518_7

70

Bus lines

89%

RED
Data quality

154

Critical observations

50

Advisory observations

Contents

Critical observations (154)

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

Timing (96)
Number of observations Observation category
78 Fast timing between timing points
6 First stop is not a timing point
12 Last stop is not a timing point
Data set (58)
Number of observations Observation category
58 Missing block number

Advisory observations (50)

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
29 Missing stops
3 Stop(s) are not found in NaPTAN
Timing (18)
Number of observations Observation category
2 Fast running time between stops
16 No timing point for more than 15 minutes