Council 24 April 2003

The ‘Kerb and Channel Replacement Prioritisation Framework’ has been adopted as the process around which the Kerb and Channel programme is developed and maintained.

'Kerb and Channel Replacement Prioritisation Framework'


To ensure the programme for kerb and channel replacement (street renewal) is developed in accordance with good asset management practice so that lifecycle costs are minimised and at the same time maximising street improvements to enhance quality of life and making a positive contribution to achieving a sustainable Christchurch.


  • Meets Asset Management Plan requirements
  • Minimises life cycle costs
  • Makes a positive contribution to achieving a sustainable Christchurch
  • Maximises environmental benefits
  • Enhances quality of life
  • Maximises Transfund revenue.


  • Prime driver is kerb and channel condition, channel type and age so that good asset management practices are used and life cycle costs are minimised.
  • Recognition of street renewal as a means of improving the social fabric of the city by providing a more pleasant streetscape to encourage community involvement and activity.
  • Maximising environmental benefits that result from the upgrades by reducing traffic-induced noise and/or vibration, opportunities for enhanced stormwater disposal/quality, and an opportunity to add planting.
  • Recognition of the gradual rate of deterioration and the opportunity to shift projects within a three-four year band to meet community needs when technical considerations allow.
  • Where possible combining adjacent streets and completing areas of common community interest concurrently.
  • Resultant work will normally encompass the full street renewal and options other than concrete channels will be considered where appropriate.
  • Community Boards to have an opportunity to prioritise works within their areas within the years two to five of the new LTCCP (programme).
  • Process to be open and transparent so requests from residents can be treated fairly and objectively .
  • The first year of the next LTCCP (programme) be fixed to enable certainty for the implementation process and to provide a level of certainty for residents in those streets.


The proposed process is:

Step 1 - Initial Ranking - RAMM condition report detailing initial ranking of streets into broad bands as determined by condition and age.

Step 2 - Detailed Rating - Site inspection and detailed rating of street in accordance with agreed rating system. See below.

Step 3 - Ranking Adjustments - Ranking adjusted taking into account other related factors eg 'clustering' of adjacent streets, 'Living Streets' projects, other Council projects, area plans, undergrounding, economic benefits in combining adjacent streets etc. This step will be done for the two to five year period during each LTCCP cycle, ie every three years, so new information can be taken into account

Step 4 - Community Board Input – Community Board consideration of ranking and opportunity to make adjustments in their area to address ‘local’ issues, within years two to five of the new LTCCP. This step will be done during each LTCCP cycle, ie every three years.

Step 5 - Sustainable Transport and Utilities Committee Approval of programme and allocation of funding provided for Living Streets.

Note - Rating scores, ranking adjustments and Community Board changes will be clearly documented in a Database of Streets for the five year programme.

Rating System

Kerb and channel condition/functionality 45%
Carriageway condition 10%
Traffic hierarchy/volumes 10%
Existing shoulder crossfalls 5%
Maintenance cost savings - cleaning, street tree issues etc 5%
Proximity to schools, ‘special needs’ facilities, businesses, leisure facilities, etc 10% User related issues (including safety) – pedestrian, cyclist, motor-cyclist, car, passenger bus, tourist bus and heavy commercial vehicle) 15%

 A rating of 0–10 is determined for each factor based on technical and written guidelines and is multiplied by the weighting to give an overall score for each street.