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Chilmington Green, Ashford

Project: Chilmington Green, Ashford
Client: Chilmington Green Developer Consortium

Survey Date: January 2011 – March 2011

Aerial Image of Chilmington Green, Ashford Land Survey ExtentsBackground

To satisfy the problem of providing places for an ever increasing population to live, work & play the Government identified a number of towns throughout the UK and encouraged their local councils to develop strategic plans to include a dramatic increase in housing.

Ashford Borough Council adopted their core strategy in 2008 and identified a number of potential sites surrounding the town, one of which was Chilmington Green.

A developer consortium was formed with the plan to provide around 3,350 homes by 2021 with the potential to increase up to 7,000 at a later stage; the development will form a whole new community with a high street, schools, open space and around 1,000 jobs.

The process is at a very early stage and J C White Geomatics Limited was chosen to provide the base information for initial planning and design.

Survey Brief

To provide topographical survey of the whole development area for initial planning and design.

Survey Methodology

Aerial Image of Chilmington Green, Ashford Design

Prior to submitting a quotation the survey brief was discussed with the Project Engineer and the Consortiums planning advisor.  A detailed quotation was supplied and on instruction further discussions held to clarify specification and confirm amendments.

The specification required a local grid with an arbitrary orientation and a conversion to Ordnance Survey National Grid (OSNG); GPS RINEX data was used to establish a site wide plan grid with a scale factor of 1 which allowed both local & OSNG coordinates for a series of main control points. Level datum was based on GPS RINEX with checks to local benchmarks.

Spot heights and ‘soft’ detail within the open areas were surveyed using GPS with daily checks to control established at the outset of the project.

Detail within the main site, adjacent to and beneath the trees, was surveyed using Leica 700 series TCR instrument.

Within the survey area there were a number of roads to be surveyed, some of which involved rolling traffic management and temporary road closure all organised internally. Road detail within the live carriageway but outside of the area for traffic management was surveyed with Leica TS15 in reflectorless mode.

Initial control processing using GPS data was carried out in Leica GeoOffice to establish OSNG coordinates for all control with a conversion to a local plan grid; once local coordinates for survey control were established the survey was processed using N4ce survey software with all GPS and TCR control checks verified prior to detailed processing.  On completion of N4ce processing the project was exported to AutoCAD for drawing preparation and then initial checking by a Senior Surveyor prior to a site visit for field verification.

Quality Assurance

On completion of the final drawing using AutoCAD a rigorous final check covering all aspects of the survey with particular emphasis on cartographical standard, was completed by a Senior Surveyor following which the survey was issued to all interested parties as a 3D AutoCAD file and paper plans.

Following issue of all survey information the project Engineers and the Consortium were contacted to ensure the survey covered the necessary area and scope and were asked for any feedback.

  • Ports & Shipping

  • Architecture

  • Waste Management

  • Civil Engineering

  • Local Government & Councils

  • Solicitors

  • Health Services

  • Renewable Energy

  • Churches & Ecclesiastical

  • Schools & Education

  • Landscape Architecture

  • Commercial, Residential & Urban Development

  • Utilities

  • Heritage & Historical

  • Coastal & River Defences

  • Railways

  • Highways

Dave Johnson, Eurotunnel

'We have worked with J C White for over 16 years and have found them to be professional and a very favourable company who complete al work in a timely fashion.'

Sam Jarvis, Jarvis Homes

'We have worked with J C White for over 30 years and use them exclusively on all our developments. We have constantly found them to be a professional, efficient and cost-effective company that adds value to our projects.'

CMS Enviro

'J C White is a proficient, professional, relaxed and approachable company.'

Mr & Mrs D Crawley

'My wife and I are very pleased with the survey work that you carried out and our solicitor assures us that on the evidence of your survey, our position is secure for the future. We would like to thank your two young men who carried out the survey for their polite good manners, helpful attitude and professional workmanship.'

Mr Richard A Maltby, Director Maltby Land Surveys Ltd

'I would like to say that JC White Geomatics are relatively local to us and we have come across their work over the years which has always been of a very high standard. I have interviewed a couple of their staff for membership into the ICES and have found them a credit to the profession. The company seems to have a very contented workforce with the management investing heavily into training.'

Dean Bain, Survey Manager Costain

‘We have been working closely with J C White Geomatics for some 6 or 7 years now. They have proved to be accurate, honest, trustworthy and innovative. They also do what they say they will do. They are my first port of call for a wide range of external survey work.’