Expertise

A geodetic control network provides the framework on which continuous and consistent mapping, Geographic Information Systems (GIS), and land surveys are based. Since a map is a flat representation of the curved world it must be an authentic representation of the real world. Geodetic Control is the mechanism that enables us to perform this transition from a curved to a flat surface seamlessly, accurately and consistently.

 

Traditionally, geodetic control points are established as permanent physical monuments placed in the ground and precisely marked, located, and documented. Locating spatial features with respect to geodetic control enables the accuracy assessment of these features. Interest and activity regarding geodetic control has dramatically increased at all private and government levels because of the need for accurate maps and surveys used in geographic and land information systems.

 

A topographic map is a detailed two-dimensional representation of natural and human-made features of a particular site. These maps are used for a number of applications, from urban planning, resource management, to site design and can be produced through land surveying techniques. The most distinctive characteristic of a topographic map is that the three-dimensional shape of the land surface is modeled by the use of contour lines or, in the case of digital mapping, a digital terrain model (DTM). Contours are imaginary lines that connect locations of similar elevation. Topographic maps also use a variety of symbols to depict both natural and human made features such as roads, buildings, quarries, lakes, streams, and vegetation.

 

Quantity, or volumetric surveys, are a type of topographic survey completed to obtain the quantity of stockpiled materials or excavated quantities from a borrow pit. Typically reported in cubic yards, the information is used for excavations, stock piles, borrow pits, landfills, pond volumes, etc. 

 

Field measurements are used to produce a digital 3-dimensional model from which the necessary quantities are calculated. The final deliverable of quantities can be delivered as a report, 2-dimensional drawing or even a 3-dimensionnsional digital model of the material.

 

A boundary survey determines the locations of legally defined boundary lines of a parcel of land as described in a filed deed or other recorded document. It may also indicate the extent of any easements or encroachments and may show the limitations imposed on the property by state or local regulations. Such surveys may be completed to differing standards, including those established by the American Land Title Association (ALTA), statewide land surveying organizations or regional affiliates.

 

These surveys are routinely used in the transfer of land from one owner to another; usually coordinated through the owners’ attorneys. Our survey team understands the stress levels that can be generated as a transaction approaches the closing deadline. We strive to minimize that stress for all parties involved.

 

During construction of new roads, buildings and site infrastructure, survey measurements, based on design documents, are made to control elevation, horizontal positions, dimensions and configurations of the constructed features. The surveying services may also include the locations of the actual as-build condition as compared to design intent and for the measurements of various pay item quantities.

Terrestrial laser imaging, also known as 3D Laser Scanning, is a land based system that allows for the creation of accurate three-dimensional images of land objects, for use in standard computer-aided design software packages. This powerful technology not only allows for the completion of traditional land surveying services more quickly and accurately, it also opens new avenues to provide added value to our clients.

 

Use of the technology can help in solving even the most complex land surveying and engineering problems. It allows for accurate measurements in places that were previously impossible or too dangerous to gather needed measurements. The resulting 3D scan and digital photo images that can be produced provide a greater level of confidence in the accuracy and comprehensiveness of the data collected for a particular project. This approach to survey data collection provides an unobtrusive method to obtain accurate as-built information of any indoor or outdoor man-made or natural structure quickly and efficiently, under virtually any lighting conditions and generally regardless of site conditions, often within just a few hours of field work.

 

Refer to this digital 3D model recently completed by Wendel of an historical lighthouse located on the shoreline of Lake Ontario.