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Non-principal roads where maintenance should be considered (40) Metric type
- Description
- The performance indicator is derived from a survey of the surface condition of the local authority's classified carriageway network, using survey vehicles that are accredited as conforming to the SCANNER (Surface Condition Assessment for the National Network of Roads) specification and processing software that is accredited as conforming to the UKPMS (UK Pavement Management System) standards.Results reported are a combination of (a) 100% of the B-class network surveyed in both directions; and (b) 100% of the C-class network surveyed in one direction. For any given length of road, data from either the current financial year or the previous financial year may be used.Authorities should aim to cover the required network lengths; where it is not physically possible to survey all parts of the network, grossed-up figures from shorter surveys (at least 90% of the total B-road requirement and 80% of the C-road requirement) will be permitted.Formula: The indicator is the length of classified non-principal carriageway identified as having a road condition indicator (RCI) greater than or equal to 100, as a percentage of the total length surveyed.(x/y) *100 where:x = length of non-principal classified carriageway surveyed identified as having a road condition indicator (RCI) greater than or equal to 100y = total length of non-principal classified carriageway surveyed.Results are calculated automatically by the UKPMS software.Worked example: Results are calculated automatically by the UKPMS software .Annual survey is carried out at any point during the financial year.
- Help text
- This is the percentage of the local authority's B-road and C-road carriageways where maintenance should be considered. This indicator was previously reported as NI 169, and is an updated version of the former Best Value Performance Indicator (BVPI) 224a (formerly BVPI 97a). Note that there are some differences from how this data was collected as a BVPI which may hide / increase differences in performance.
- Modified
- 16 Dec 2020
- Data last updated
- 29 Jan 2024
- Also known as
- NI 169 Non-principal classified roads where maintenance should be considered
- NI 224a Condition of Non-Principal Roads
- NI 97a Condition of non-principal roads
- Short label
- Non-principal roads where maintenance should be considered
- Status
- Live
- Output precision
- 0
- Polarity
- a low value is good
- Measure
- Percentage of the total length surveyed
- Dataset
- Non-principal roads where maintenance should be considered
- Collection
- Road conditions statistics
- Source
- Department for Transport
- is found in the following lists
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