W.D.M. Limited North View, Staple Hill, Bristol BS16 4NX Telephone: Web: London wide skid policy November 2009 Martin Sachs, Mark Stephenson

London-wide work by LoTAG HMSG Skid Resistance Policy one of several London-wide projects Aims of project and project initiation Overview of work carried out by WDM for roads 2000 London wide skid policy and guidance documents Overall benefits of policy Deficiency listing and site investigation Case studies Presentation outline

Highways Maintenance Steering Group set up in 1997 Set up to bring “practitioner” voice to LoTAG Group 2 Aims- to identify and encourage best practice in Highways Maintenance Federal structure- Steering Group made up of Sector Chairs Activist agenda- benchmarking, sharing solutions and joint projects LoTAG Highways Maintenance Steering Group

London-wide Asphalt Project Trials Database CDM Competences Training Site Card Winter Service London-wide Skid Resistance Project London-wide Projects

To provide generic policy for use across London To develop consistent approach and draw on existing standards To focus (for now) on TLRN and principal roads Project placed with WDM as extension to Road2000 work Project Board appointed by HMSG Delivery- Generic policy and guidance ed out last Thursday! Project Aims and Delivery

Analysis of accidents and SCRIM data Development and agreement of Initial Investigatory Levels Policy and Guidance documents Training (March/ April 2009) Production of deficiency listing and maps for 2008 In productions – deficiency listing for 2009 London wide site ranking? WDM work on project

Skid policy and guidance documents Policy is template for adaption by boroughs Guidance document gives procedures to follow Issued as draft in April, final last week Together will assist in casualty reduction and risk management

Guidance document gives overview of benefits at network level Can apply same principle to each borough Is it correct to apply network wide assumptions to individual site? Adopt process similar to that used in local safety schemes – first year rate of return (FYRR) = cost of accident x no of accidents saved cost of scheme Policy benefits

Deficiency listing Combines accident and SCRIM data Is a tool to prioritise sites for investigation deficiency listings to be provided that consider 2009 survey data, and 3 year accidents to April 2009

Case study 1: South London bend

Top ranked site in borough on deficiency listing Site is 0.12 deficient 8 injury accidents, of which 5 in wet, all involving loss of control Investigation –Surface condition –Geometry At initial level a surface treatment is likely to bring some accident savings and have good FYRR Case study 1: South London bend

Case study 2: North London crossing and junction

high ranked site in borough on deficiency listing. Classified as approach to crossing, but close to junction as well. Site is 0.13 deficient. 19 injury accidents in 3 years, of which 6 in wet. 4 pedestrian casualties. A lot going on at the site – may warrant wider review and additional treatment as well as surface. Case study 2: North London crossing and junction

Case study 3: East London crossing V1 approached controlled pelican crossing. Traffic light were flashing amber ready to go green. Injured pedestrian rain into the carriageway from the north footway on

15 th ranked site in borough on deficiency listing Classified as approach to crossing Site is 0.11 deficient 1 serious injury accident in wet Deficiency cause for concern Lower priority to treat – but harder to make the decision Case study 3: East London crossing

Included in guidance document Suggests overall programme for survey, production of deficiency listing and investigations Likelihood is that sites identified in year 1will be treated in year 3 May need mechanism to fast track sites with high accidents rates/ high deficiency Timeline

WDM can: Produce 2010 deficiency listing On site training in carrying out investigations Review policy and guidance v new HD28 Assist in developing policy for other roads Miscellaneous training for boroughs Audit implementation of policy Further work

London-wide Skid Resistance Policy Project Board LBHF for project governance TfL support TRL LB’s of Islington and Hammersmith and Fulham for hosting meetings. Thanks to

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