Data quality report

Arriva UK Bus_Colchester_Welwyn Garden City_20210411_21

323

Bus lines

97%

AMBER
Data quality

80

Critical observations

184

Advisory observations

Contents

Critical observations (80)

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

Data set (80)
Number of observations Observation category
80 Missing block number

Advisory observations (184)

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.

Stops (52)
Number of observations Observation category
52 Missing stops
Timing (117)
Number of observations Observation category
7 First stop is not a timing point
110 No timing point for more than 15 minutes
Journey (15)
Number of observations Observation category
15 Expired lines