Monday 30 June to Thursday 3 July 2008

Accurate and appropriate measured survey data is a fundamental requirement for the effective conservation, management and understanding of our built heritage. Such data needs to be appropriate, timely and sensitive to the nature of the site and the interventions proposed.

An extensive array of differing measured survey techniques is available today, from traditional hand-drawn survey through to total stations, 3D laser scanners and other advanced digital methods.  Both survey practitioners and those procuring survey need to know the range of techniques available and understand their benefits and limitations in any given situation.

This three-day intensive Summer School is designed to introduce the range of measured survey techniques currently available and to provide participants with both theoretical and practical instruction, focussing on the production of scaled drawings of selected buildings in the gardens at Wrest Park.

Instruction will be provided by English Heritage staff who have extensive experience in the use of both traditional and advanced methods of survey.

The summer school is directed by Jon Bedford, Metric Survey Team, English Heritage.

Summer School

The Summer School will take place over 3 days with an optional tour of the grounds taking place on the afternoon of Monday 30th June.

The principal aim is to provide a broad understanding of the processes and practices involved in the metric survey of historic buildings and ancient monuments. This will be achieved by:

Formal lectures

Lectures will cover measured survey techniques and the application and procurement of measured survey for conservation projects.

Demonstrations

Using the monuments in the grounds at Wrest Park, participants will be able to apply, or see the practical application of, the techniques introduced in the lectures.

Practical sessions

Participants will be able to engage in the practical application of measured survey techniques, as outlined below. CAD facilities will also be available to demonstrate the construction of survey drawings from fieldwork.

Measured Survey Techniques

The different measured survey techniques used by the English Heritage Metric Survey Team will be introduced and their application demonstrated by practical field sessions.

• Hand Survey - This fundamental skill will be demonstrated with a view to producing a measured architectural drawing.
• Instrument Survey - Students will see how electronic survey instruments (total stations) can be effectively used to provide a framework for the production of the measured drawing. There will also be a demonstration of laser scanning and discussion of this relatively new technology in Heritage recording.
• Image-based Survey  - This term covers a range of techniques (photogrammetry, ortho-photography, rectified photography) which will be explained by demonstrations, practical sessions and viewing of the resulting data.
• Procurement – Procuring measured survey from a third party contractor usually requires a specification and a brief to control the work. Participants will be shown why this is, and how to use these instruments to ensure the right product is procured.

Who should attend?

The course is intended to meet the needs of those already working in the field of buildings conservation who wish to develop a broader understanding of survey techniques, their application and the procurement of survey.

Outcomes

At the end of the course participants will have an understanding of:

• the majority of measured survey techniques currently used in the survey historic buildings,
• the suitable selection and application of appropriate survey techniques,
• CAD as the data capture, modelling and presentation environment,
• the issues to be addressed prior to commissioning a survey from a survey contractor,
• recent technical developments in this field of conservation.

Wrest Park

Wrest Park, in the guardianship of English Heritage, forms an ideal venue for the Measured Survey Summer School of historic buildings. Once the home of the de Grey family, Wrest Park today comprises a country house of the 1830s and an important garden landscape containing many fine buildings and monuments.

Course fee

The fee of £445 includes three nights B&B (Monday 30th June – Thursday 3rd July), lunch, light refreshments, evening meals and course documentation.

CPD

This course may be put forward under professional schemes for CPD:

• for IHBC members
• depending on the member’s Personal Action Plan, it may contribute to an IFA member’s CPD.

Course lecturers

David Andrews, Photogrammetrist

David is responsible for English Heritage’s externally procured measured surveys and photogrammetric projects. He also undertakes image-based surveys and the production of survey drawings.

Jon Bedford, Senior Historic Buildings Surveyor

Jon undertakes and presents field survey of historic structures using a variety of techniques, refining technical survey processes and evaluating and integrating different technologies for metric survey. He is the course director.

Bill Blake, Measured Survey Manager

Bill has developed the measured survey of historic buildings using REDM and real-time CAD interfaces. He is responsible for the day to day management of the Measured Survey Unit.

Paul Bryan, Head of the Metric Survey Team

Paul has a long involvement in the use of image-based techniques for surveying historic buildings and landscapes. He is currently developing the application of 3D laser-scanning techniques.

Mick Clowes, Senior Photogrammetrist

Mick is one of a group of English Heritage surveyors whose work and development has seen photogrammetry become an essential tool in the recording and conservation of historic buildings. He is currently responsible for digital photogrammetry and CAD editing.

Andy Crispe, Computer Graphics Artist

Andy uses CAD survey data to develop 3D models. He also undertakes field survey using REDM with real-time CAD and the subsequent production of CAD survey drawings.

Heather Papworth, Historic Buildings Surveyor

Heather has responsibility for the team’s publication programme. She works with 3D visualisation, and undertakes field survey using REDM and real-time CAD.

Steve Tovey, Photogrammetrist

Steve is a photogrammetric operator with a wide range of experience throughout the geomatics sector including heritage recording. He is currently responsible for digital photogrammetric projects including the production of line drawings and ortho-photography.

Course Administrator

Sarah Prince, Metric Survey Team, English Heritage, NMRC, Kemble Drive, Swindon,
SN2 2GZ.  Tel: 01793 414809 
Email: WrestMs@english-heritage.org.uk