Translating the Information Needs to the Map

Gunneman GIS & Geomatics is specialized in the translation of the information needs to the map.

We offer Geo ICT Solutions based on FME software FME. Our Geo ICT Solutions are directed to the transformation of existing data to useful geographical information.

Our Geo ICT Solutions

Geographical information is only useful if it is reliable, if it is giving insight and if it engages with the user group. Gunneman GIS & Geomatics offers a wide range of consultancy and services to organizations during the entire information process, starting from the mapping of the information needs to the setup of the proper information flows.

Gunneman GIS & Geomatics offers a wide range of consultancy and services for organizations during the entire information process. We can answer any question, concerning the transformation of existing data to useful geographical information, with the information process.

Examples from the Market

SLide 1A logical data model for the river bank files

The investigation time for finding the proper river bank data was unacceptable high for a governmental organization. On their request Gunneman GIS & Geomatics investigated the information process of the river bank data.

During interviews with various departments a first view was obtained  of the information needs with respect to the river bank objects. While the department responsible for its maintenance needed information concerning the river bank construction and its construction parts, the department responsible for the policy of waterway management needed information concerning the ownership and (technical) life expectancy.

Further analysis of existing data concluded that different data sources existed and that a number of columns was not consistently filled. Reference of various construction parts was done by using numbers that, without the construction drawing, had no meaning to several users.

To reduce the investigation time the decision had been made to restructure the information model such that the various data files would converge into a single one. A number of columns were combined to a fewer number of columns resulting in a better filling of the columns. Also construction drawings were linked to the geographical data and have the construction parts been renamed to its technical terms.

This resulted in a widely supported river bank information file with a logical information structure for all parties. By implementing a multiple choice model in the future the information will be updated unambiguously.

29210715_mlFrom regulation to geographical information

In the Netherlands and Europe there exist several guideless for the maintenance of the waterway depths. These guidelines are expressed as measures in tables and can be found in various catalogues. Based on the waterway class the proper measures can be found.

For a governmental organization this information was not sufficient. In an interview it became clear that the measures were not easily assigned to areas of interests resulting in the desire to translate the guidelines to geographical maps. Also a request was made to introduce water lanes, based again on guidelines, to reach the berths in the same maps. Furthermore there was the desire to compare the bathymetric (read: measured) depth map such that new insight could arise for dredging purposes.

In an extensive and automatic transformation model various data sources were read. The combination of geographical data objects and table information was used for the automatic generation of a water depth profile data file. After conversion to imagery the water depth profiles were compared to the bathymetric map and a water depth difference map had been generated.

For obtaining the best result we decided that the water lanes could be best drawn manually, after which they were imported into the automatic transformation model. The automatic transformation model had been developed using FME and the Model Builder module of ArcGIS software. The model will be executed after any change in the berth file, resulting into an ever present up-to-date map.

32218252_mlAutomatic inventory lists of geographical objects

In order to obtain financial means every year a government organization needed to file a budget. As the organization is data driven the budget is based on the amount of a selection of objects from the Geographical Information System (GIS). In the past years the inventory list of objects were made manually. This was found to be too labor-intensive and therefore the organization had the desire to process the inventory list automatically in the future.

Except the automatic processing of inventory lists, the desire also existed to make inventory lists per road or waterway trajectory and to unlock these lists in a Dashboard. In this way users can select one or more trajectories and directly obtain the corresponding (sum) amount of objects.

The making of the inventory lists could be automated for the whole process. For about 150 trajectories entire inventory lists could be generated,  and easily reproduced the next year. The transformation model had been developed in FME software, while the Dashboard had been developed in Tableau software.

18913349_mlLines of minimum sight and obstructing objects on the map

Waterway users need to be visible for each other. In catalogues the minimum sight distance can be found per waterway class. These distances of minimum sight can be visualized by generating lines of minimum sight from the waterway axes. Due to turns some lines of minimum sight may cross land and be obstructed by objects. A governmental organization expressed their wish to map these lines of minimum sight and obstructing objects.

In an automatic data transformation model 70,000 lines of minimum sight have been generated and generalized to minimum sight areas. Subsequently altimetric data has been used to find all objects higher than a certain value with respect to the local water level and mask them as obstructing objects.

Using the new maps unlocked in a central visualization system, civil servants can nowadays check by their own if appropriate measures need to be taken into account. In some cases a local speed limit needs to be adjusted, while in other cases the obstructing object can be removed.

Company Profile

Contact information

Gunneman GIS & Geomatics is a small enterprise that was founded in the beginning of 2014 by Jochgem Gunneman. In the company knowledge and expertise in the field of Geographical Information Systems (GIS) and geomatics is present.

Gunneman GIS & Geomatics focusses on organizations that use geographical information, like governmental organizations, technical companies and geo-service companies. Most requests come from (object) management and policy makers. The company is active in the Netherlands as well as active Internationally.

The company has been subscribed to the Dutch Chamber of Commerce as number 57702543.

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