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SCOTTISH ROAD NETWORK LANDSLIDES STUDY SUMMARY REPORT

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FOREWORD

The landslide events of August 2004 had a substantial impact on Scotland's road network. Although the effects were principally experienced by local and commercial road users, the tourist industry, which reaches its peak in the summer months, was also significantly disrupted.

The Scottish Executive, together with other governments, is committed to protecting the environment, aiming to tackle global warming. However, climate change is already happening. In response to the events last summer two studies were instigated. One concerns the effects of climate change on Scotland's road network, which is being published separately. This study though focuses on how we develop our procedures for assessing, ranking and managing the hazards associated with landslides. This report presents the results of the first stage of the landslides study. It highlights debris flows, a particular type of landslide, as representing a hazard to the road network and its users. The report details means by which areas susceptible to such hazards may be identified and the methods by which we might deal with them.

I am pleased that we have been able to facilitate contributions to this report from a wide range of experts, who have worked together in such a collaborative fashion. The report that has emerged from their efforts is a forward-looking document that sets out the future for landslide management in Scotland. The work will now continue into the second stage of the study with the development of a standardised system for assessing hazards and managing the consequences. These efforts will make Scotland's roads safer and help to maintain Scotland's reputation as both an area of vibrant economic growth and a premier tourist destination.

I am pleased to offer my support to the work presented in this report and to the continued progress towards assessing and managing the hazards which landslides present.

Nicol Stephen

Nicol Stephen signature

Nicol Stephen MSP
Minister for Transport

WORKING GROUP MEMBERS AND REPORT CONTRIBUTORS

This Summary Report is based upon a more detailed Technical Report prepared in response to the instruction of the Minister for Transport following the landslide events of August 2004.

The Technical Report (also available from the Scottish Executive) is intended to assist the professionals charged with taking forward the study work on landslides to implementation and also for the wider professional community. This Summary Report is intended to inform a wider audience of the Scottish Executive's actions both since the events of August 2004 and planned for the future.

The study commenced with a Project Workshop, held in September 2004. Acknowledged experts were invited to give presentations in order to capture the wide knowledge vested with individuals. The presentations were followed by focussed discussion sessions designed to open out the knowledge base and determine the way forward with the project.

Following the Project Workshop the Technical Report Editors, who are also the authors of this Summary Report, assigned tasks to individuals (including themselves) in terms of the preparation of the full Technical Report. The speakers at the Project Workshop, most of whom were assigned tasks in terms of preparing the Technical Report, and their colleagues who assisted them, are listed in alphabetical order, as follows:

Dr David Brown, W A Fairhurst & Partners/Amey.
Alan Forster, British Geological Survey.
Andrew Heald, Jacobs Babtie/ BEAR.
Dr Steve Hencher, Halcrow.
Forbes Macgregor, Scottish Executive.
Stewart Martin, Halcrow.
Paul McMillan, W A Fairhurst & Partners/Amey.
Dr Roger Moore, Halcrow.
Ian Nettleton, EDGE Consultants.
Julie Parsons, Jacobs Babtie/ BEAR.
Lawrence Shackman, Scottish Executive.
Andy Sloan, Donaldson Associates.
Matt Willis, Arup.
Dr Mike Winter, TRL Limited.

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Page updated: Monday, June 13, 2005