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Reporting NI 168 and NI 169
DfT Guidance for reporting NI 168 and NI 169 in 2009.
In 2009, local highway authorities in England are required to use SCANNER accredited surveys and a UKPMS accredited pavement management system to produce their NI 168 and NI 169 reports. The guidance urges authorities to check that the survey data have been produced from a survey machine that was accredited at the time of the survey, and that the calculations of the NI 168 & NI 169 values were carried out using a properly accredited version of the pavement management system.
Ideally, local authorities should plan to have SCANNER surveys carried out at approximately the same time each year to minimise variations due to seasonal effects and the impact of the annual maintenance works programme.
IAN 106/08: Guidance Note for Traffic Consultants working on HA Schemes
As traffic flows on the HA and surrounding network increase, there is generally more congestion and the traffic modelling required is becoming more complex. In addition, the current DfT and HA guidance on transport modelling is currently spread amongst a number of sources (DfT's WebTAG, DMRB, CHE Memos and Interim Advice Notes (IANs)).
IAN 106/08 is in effect a checklist to aid in ensuring that all the relevant guidelines is followed and will be of interest to HA staff and their consultants who are, or will be, involved in producing traffic and economic appraisals for major highway schemes, particularly those over £5m in HA's Major Programme of Schemes.
