DIPA2010
A one day conference addressing topical issues surrounding pavement assessment
13 July 2010
Outline Agenda
Keynote policy presentation: Ten years planned
Edward Bunting, Senior Policy Adviser, Department for Transport
Edward will look back at Government policy over the past ten years, including the 10 Year Plan, Local Transport Plans, and performance indicators; he will review the unexpected events that have sprung up along the way; and he will consider the impacts of the economic downturn.
Keynote technical presentation:
Where realistically will we be in 2020?
Les Hawker, Asset Manager, Transport for London
Have the expectations of the last 10 years been realised? With this perspective, Les will consider what the industry will achieve by 2020.
Managing the pothole plague in Devon
Keith Grant, Scientific Officer, Devon CC
The combination of two successive severe winters, a large evolved road network, restricted funding and a changing climate have led to an unprecedented crop of potholes across Devon. Faced with the challenge
of dealing with in excess of 60,000 new potholes Devon County Council had to find an approach to restore the network to a safe standard and address the concerns of the public. This is a brief presentation on a saga that is full of holes.
Addressing the challenges of highways surface water management
Scott Tompkins, Asset Manager, Gloucestershire Highways
A review of progress with regard to flood risk management in Gloucestershire since the 2007 floods, including working with the EA and districts, and building a record of drainage assets. The presentation will also address issues raised by the Flood Water Management Legislation facing local authorities with respect to drainage inventories.
Rational pavement rehabilitation – a new approach
Alistair Hunter, Technical Director – Scott Wilson
Structural overlays and inlays form a significant component of the pavement works undertaken in the UK and have an impact in terms of cost and road user delay. Currently, there is no clear and consistent method for evaluating whether structural pavement treatment is required and if so, defining the right treatment. A recent review of lead design consultancies has revealed significant differences in their approach. This paper describes the findings of an HA sponsored project aiming to develop a consistent method based on good practice and optimising whole life costs.
Structural evaluation of pavements using
moving deflection measurements – past, present and future
Gonzalo Rado, Senior Consultant, Fugro Consultants, USA
The falling weight deflectometer (FWD) represents the state-of-the-practice, but it is not without shortcomings – it is a stop-and-go operation that requires lane closures, which cause traffic disruption and create a safety hazard. A number of organisations have therefore developed devices to measure pavement deflections continuously. Despite the potential of these systems, however, a number of equipment–, measurement– and application-related challenges remain. This presentation looks at the evolution of deflection testing, with particular emphasis on the present and future.
Dr Behzad Rahimzadeh, Principal Pavement Engineer, Halcrow
An update on the often misunderstood principles of FWD; case studies describing the role of FWD along with CVI and DVI as a network ‘screen’ to select schemes and the subsequent use of FWD and GPR data in their design. Further case studies will describe the use of FWD to help design and monitor ‘crack and seat’ refurbishment.
Using high performance 3D laser transverse profiling
sensors for the measurement of road surface conditions
Jean-François Hébert, Co-Founder & Director, Pavemetrics Systems Inc.
The LCMS (Laser Crack Measurement System) is based on two high performance transverse 3D laser profilers scanning the 4m width of the
road surface with 1mm resolution at 100 km/h. In collaboration with the National Optics Institute of Canada and the Quebec Ministry of Transportation several years of tests were conducted to refine this system to detect road characteristics ranging from cracks and rutting to macro-texture and ravelling. The presentation will describe progress in implementing the automated dectection of each of these surface conditions and will reveal the latest results.
Mini-Scanner – example of use on the Devon network
David Fergie, Highways Technician Engineer (PMS), Devon CC
An introduction to the use of Scanner in Devon. Issues covered will include the need for the surveys; an outline of the 15 year development contract
and the 5 to 7 year survey contract with WDM, and uses of the data including safety and asset management applications. Other aspects covered will include the value of video as a possible source of inventory data, the development of a local weighting set within the WDM UKPMS/PMS and input to a financial model to calculate maintenance financial backlog.
[Full event leaflet [pdf]][Booking online] [Printable booking form [pdf]]