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topography Terminology

Below are some definitions of the terminology of topography most commonly used reliability for a survey

Alignment: is the direction between two points as fair as can be in accordance with the topography .

horizontal alignment: is the projection of the center line of an engineering work on the horizontal plane, taking into account the position of the points made in the alignment.

Vertical alignment: or development is the central projection of a line taking into account the distance and elevation set points.

Gap: is the removal of the vegetation inside the dash line for the screening of a road or to delineate a topographic survey, this depends on the type of work performed.

Chain: are the distances ranging from one point to another set in meters and kilometers, used to traverse open in tracing routes comunicación.0 +000 (closed chain) 0 +020 (String partial) is 20 meters each

Catenary: this error is committed when the tape is not supported on the ground but remains suspended at its ends, thus forming a curve called catenary. This error is positive and is eliminated by applying the correction determined.

Sketch location: serves to indicate the location where it does the job of surveying.

deflections (Δ): is the steering angle of a polygon generally open with respect to a point, your address may be right or left as the survey.

Topographic Details: is the shape of the land with its own relief to take them into account in a survey.

Topographic Address: is the sense of a line with respect to magnetic north or astronomical site as appropriate.

Distance: is far over an area projected or raised with the use of any measuring equipment. The length between two fixed points.

Axis Stroke (center line): usually open polygon is used to line the road and waterworks.

Survey: is a set of operations and media implemented to determine the positions of points on the ground and their representation in a plane.

Lindero: is tagging, projection or division of property over another.

Marker: Base or sign structure which is usually the corner or vertex of a property and serves to define the boundary between two properties.

Magnetic North: is obtained by means of a compass where the orientation of the compass point to magnetic north by the attraction of the place where you get the guidance.

Orientation: is the direction of any line determined by the horizontal angle formed with some real or imagined reference.

Magnetic Orientation: numerical quantity is represented in degrees by the compass.

Traverse: is the succession of straight lines connecting a series of fixed points.

Traverse Closed: is one whose initial and final match ends, ie is a polygon.

Traverse Open: is a broken line of n polygonal sides or that the ends do not match their physical angular deflection is obtained by adding the positive and negative. The difference between the two sums must be equal to 360 degrees.

topographic slope: is the inclination (slope) in either ascending or descending according to the horizontal of a stroke, according to the projection type of terrain.

Planimetry: is a set of work done to take into the field of geographic data necessary to enable us to construct a figure similar to the field, projected on a horizontal plane.

Projection: is the numerical approach to the methodology established in accordance with preset alignments.

Radiation: topographic method for the establishment of auxiliary points to determine the location of the boundary of a property.

Stakeout: redraw is a project fueled by a flat field exists.

Graphic Representation: drawing is represented on a plane this being a property, a scale, a line of a road, etc. In the form of symbols or numbers.

Size: number is the amount of total or partial portion of the land or property given in m2 or hectares as the case required.

Legend: Interpretation graphical tools, ways of rivers, buildings, etc. Related to the area topography.

Tolerance: is the maximum permissible error in measuring angles, distances and elevations, with the method used to form topography.

Cabinet Work: data are taken into the field for further planning and calculation, and thus draw the plan of survey conducted.

Fieldwork: Is the data collected during surveys topographic, according to the method used.

Stroke: is a projection line basis points already established and thus obtained distance or chainage with their respective orientation (angles).

Vertex: Angle formed at a station auxiliary point, magnetic north, etc.., With respect to a line indicated where the turn led to another point generated by this vertex.

Station (Est): location is the beginning of the uprising, this being a number (0, 1, 2, 3 ...), radiation (R1, R2, R3, Rn). A string (0 +020, 0 +040, etc.) or any important data string.

Point Visa (PV): point is the location where the travel is rising, with a number, radiation or chain, all depend on the method used during the survey.

Distance (Dist): length usually measured in meters and can be used also cadenamiento.Angulo: It is expressed numerically in degrees (°), minutes (') and seconds ('') it can be in an azimuth or direction as appropriate.

Coordinates: numerical quantities are established during or after the uprising, these usually being sometimes X and Y Z.