Data quality report

Notts & Derby Traction Co. Limited_Derby_Ilkeston_20171031_5

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

44

Bus lines

90%

AMBER
Data quality

62

Critical observations

54

Advisory observations

Contents

Critical observations (62)

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

Stops (28)

Number of observations	Observation category
28	Stop(s) are not found in NaPTAN

Data set (34)

Number of observations	Observation category
34	Missing block number

Advisory observations (54)

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 (20)

Number of observations	Observation category
20	Missing stops

Timing (34)

Number of observations	Observation category
4	First stop is not a timing point
4	Last stop is not a timing point
26	No timing point for more than 15 minutes