The feature that most distinguishes topographic maps from maps of other types is the use of contour lines to portray the shape and elevation of the land. Valley - A valley is a stretched-out groove in the land, usually formed by streams or rivers. While common, it can be an exhaustive process — moving earth takes a great deal of labor, and mistakes can lead to costly rework. Smaller-scale projects with limited cut and fill needs may not require more than 2-dimensional diagrams. A cut-and-fill operation is a procedure in which the elevation of a landform surface is modified by the removal or addition of surface material. Topographic maps render the three-dimensional ups and downs of the terrain on a two-dimensional surface. I decided to order the Comm/Sensor Dish to use as a terrain feature, and objective on a 28mm wargaming board. Fill- A fill is a man-made feature that results from filling a low area, usually to for a level bed for a road or railroad track. 2. Cuts are shown on a map when they are at least 10 feet high, and they are drawn with a contour line along the cut line. With our tools and services, your business can gain detailed insights into your project to help make the most of your cut and fill terrain. Cut - A cut is a man-made feature that results from cutting through raised ground, usually to form a level bed for a road or railroad track. 2 Revision 11/6/2017 3. If you are standing in a valley, three directions offer high ground, while the fourth direction offers low ground. The grid method of calculation involves drawing a grid onto the plan for the earthwork project. Beyond this difference, the ability to use one type of diagram over another depends on access to the site and equipment availability. So what exactly does cut to fill mean? Contour lines on a map depict a spur with the U or V pointing away from the high ground. The US Army states that “A ridgeline is a line of high ground, usually with changes in elevation along its top and low ground on all sides from which a total of 10 natural or constructed terrain features are classified”. Edges can come in many forms, but most generally these are edges between two different types of terrain or cover. For each node of the grid, determine the existing and proposed ground level and calculate the cut or fill required. We work with data from Carlson, Leica, Topcon and Trimble equipment and can provide models in any format you need, whether your engineers use Civil 3D, MicroStation or another design software. The two terms are defined as follows: When railways, roads or canals are dug out, the cut material is pushed to fill out nearby hills and embankments. Commonly, a map with these features may be used as a base, with the final project laid over it to determine areas of potential cut and fill. The most basic maps utilize 2-dimensional diagrams, while more modern solutions use 3-dimensional modeling software. A variety of calculation methods are used to calculate cut and fill values, and some of these methods are detailed below. [Point elements such as cell, circles and text strings are typical MicroStation elements 1.1. So you’ve determined that you’ll need to use cut and fill excavation in your project, and you have an idea of what method you’ll be using. How would I cut a hole in a terrain for an underground scene? The term is also used in river management to speed a waterway's flow by short-cutting a meander. This is done for each adjacent pair of sections, then the total volumes are added together to create the complete cut and fill volumes for the project. However, it must be completed using software due to its technical complexity. Import a Surveyor DWG file for a Site Plan or Terrain Perimeter Video No. Contour lines for a saddle normally resemble an hour glass. 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