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As part of the content review and update process on the now revised LINZ website, relevant content was moved from the old LINZ site to the Landonline website.
The following e-survey information is now in the e-survey best practice section of the Landonline website:
LINZ has recently revised the Landonline Pre-validation Report Explanation document as a result of feedback from surveyors.
The following C (Cadastral e-survey) rules have been updated:
The following Y (Cadastral Survey Integrity) rules have been updated:
Refer to the August 2007 edition of Landwrap for an overview of the pre-validation resource material available to you.
As part of the ongoing work to assist surveying in non-SDC (Survey-accurate Digital Cadastre) areas, LINZ facilitated a workshop with surveyors in June to discuss various improvement options.
The workshop followed a questionnaire conducted in April 2008, the results of which were reported in Landwrap in May 2008.
The option of supplying further survey control and fixing boundaries to a better accuracy was discussed at the June workshop. A pilot project is now underway to consider options for upgrading the cadastre by tying it into control so that spatial accuracy can be improved.
Team Manager Specialist Processing Graeme Blick says, "In some non-SDC areas, the cadastre can be up to 50 metres out of position. We're going to look at cost effective ways to re-align the cadastre to an accuracy of a few metres. We're not trying to upgrade it to survey accuracy."
Comments from surveyors and analysis of exception requests indicate that the Far North is a non-SDC area with significant challenges. Graeme says LINZ will be targeting that district to pilot a new approach to re-align the cadastre.
"We're trying to capture some cadastral observations from the control and tie it into the parcel fabric," says Graeme. "In some cases where we have minimal control, we may have to capture some boundary observations as well."
Graeme says the pilot project will be reviewed after three months. If it proves to be successful, it may eventually reduce the need to raise exception requests.
An enhancement proposed for Landonline Release 3.1 (scheduled for September 2008) will allow the exception process to be activated at any point during capture by the person working on the survey. This will remove the need for the signing surveyor to go through the 'submit' and 'certification' process to activate an exception.
A key benefit of this enhancement is that the exception process may be entered as soon as issues are identified, i.e. early in the capture process, therefore minimising delay towards the end of the survey. This may mean working in a different way for some surveyors who usually complete as much as possible before submitting and using the exception process.
Information on using the exception process more effectively is available. In July 2007, LINZ streamlined the process and information, including a checklist, was published in Landwrap. When to raise an exception request has also been published on this website.
LINZ has also been focussing on clearing the backlog of cadastral network adjustments. Since 1 September 2007, approved datasets awaiting network adjustments have reduced from 3,000 to 650.
"Surveys can now be quickly integrated into the cadastre and underlying issues addressed much faster," says National Processing Manager Lindsay Meehan. "This will assist surveyors who have further work to complete in the same area."
When encountering problems in non-SDC areas, some surveyors follow the practice of lodging two datasets. The first survey would be a control survey or redefinition to enable the cadastre to be adjusted prior to completing the subdivision. However, when following this practice, the surveyor needs to indicate in the survey report that an adjustment is required to better align the cadastre and request LINZ to let them know when the adjustment has been completed.
We will keep you updated on this project in future issues of Landwrap.
Further to the Landwrap article in March 2008, work on the high level design for 'Offline Plan Generation with Diagram Creation' is continuing.
We will provide further details in the September edition of Landwrap.
LINZ and survey industry representatives completed an e-survey prioritisation in July. The exercise required some pre-work and attending a one-day workshop at which existing and new enhancements to Landonline e-survey were discussed, reviewed and received a final rating.
The results of this workshop will feed into the normal Landonline release cycle planning and development.
As part of an improvement to the previous prioritisation process, business requirement documents have been prepared for each enhancement. These documents will provide clarification and context for each enhancement, and explain the purpose and benefit that will result once the enhancement is implemented.
Earlier this month, we invited NZIS branch members to participate in a four-week online pilot to test a new process for describing, discussing and ranking proposed enhancements.
The pilot requires 30-40 e-survey users to access a Wiki (a web-based application that allows users to collaborate on documents) where a sample of proposed enhancement details will be published, and be involved in online discussion and rating of the published enhancements. Participants will also be able to propose new enhancements.
If you haven't received an invitation from your NZIS branch and you are interested in participating, please email jlawrence@linz.govt.nz.
On completion of the pilot, the business requirement documents will be published in Landonline and will be accessible via the e-survey web forum.
We will provide a further update in the October edition of Landwrap.
The e-survey Tips and Hints on the Landonline website are continually being refined and added to.
See the updated tip and hint on this website.
How do you know if you are working over a survey that has already been captured in Landonline, either by the initial Landonline conversion project or a subsequent e-survey?
There are several ways of identifying existing survey data in Landonline:
Approved layers will now spatially display (if there are any in your area).
The following are tips for e-survey users who are either associated to multiple firms or are e-survey contractors:
The self-help information in the e-survey section is ordered by the experience level of the surveyor – novice, experienced and advanced.
Spanning a wide range of topics, the best practice section includes the tips and hints full index.
The e-survey training resources section has all the links and background on training materials provided by LINZ such as the user guide, computer based training (CBT) DVD, and the support available to surveyors.
