land surveys, site location and map reading

Download LAND SURVEYS, SITE LOCATION AND MAP READING

Post on 25-Feb-2016

36 views

Category:

Documents

2 download

Embed Size (px)

DESCRIPTION

LAND SURVEYS, SITE LOCATION AND MAP READING. Speaker : Engr. Merlito Castor Catolico PRC Accredited Speaker No. 071 Real Estate Broker/Appraiser /Consultant. (4 hours). WHAT IS GEODETIC ENGINEERING ? . GEODETIC ENGINEERING LAW (RA 8560 ) - PowerPoint PPT Presentation

TRANSCRIPT

LAND SURVEYS, SITE LOCATION AND MAP READING

LAND SURVEYS, SITE LOCATION AND MAP READING(4 hours)Speaker : Engr. Merlito Castor Catolico PRC Accredited Speaker No. 071Real Estate Broker/Appraiser /Consultant1

WHAT IS GEODETIC ENGINEERING ?

GEODETIC ENGINEERING LAW (RA 8560)

AN ACT REGULATING THE PRACTICE OF GEODETINC ENGINEERING IN THE PHILIPPINES

The practice of Geodetic Engineering is a professional and organized act of gathering physical data on the surface of the earth with the use of precision instruments.

2

3PRACTICE OF SURVEYING RELEVANT TO REAL ESTATE BROKERAGEDETERMINE METES AND BOUNDSis a system or method of describing land, real property (in contrast to personal property) or real estateMetes = boundary defined by distances and directionBounds = more general boundary description

SUBDIVISION / CONSOLIDATION SURVEYSSKETCH PLAN PARCELLARY SURVEYS

Source : http://www.mooresbay.co.nz/subdivision_planWHY IS IT IMPORTANT FOR BROKERS TO KNOW BASIC LAND SURVEYING ?Real Estate Brokers need to know basic surveyingThree elements of space in surveyingCardinal direction in surveying

How Real Property described

What are the different kinds of land survey

Read maps?Map symbolsScaleTopographic mapsImportant informations in a map?

DEFINITION OF SURVEYING TERMSWHAT IS LAND SURVEY?MAP?SITE?LOCATION?METES AND BOUNDS ?SUBDIVISION / CONSOLIDATION SURVEYS ?SKETCH PLAN ?PARCELLARY SURVEYS ?

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSCadastral Survey = creates or re-establishes, marks, and defines boundaries of tracts of lands.

Hectare = 10,000 square meters

Kilometer (km) = 1,000 meters

Meridian (or line of longitude) = true north and south line extending from an initial point in both direction

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSTrue Meridian = Line or plane passing through geographical north pole and geographical south poleAnte meridiem ? (from Latin Meridies or mid-day)Post meridiem ?

Magnetic Meridians = is an imaginary line connecting the magnetic south and north poles and can be taken as the magnetic force lines along the surface of the earth.

Magnetic Declination = angle between the magnetic and the true meridian

Metes and Bounds = A common method of land description that identifies a property by specifying the shape and boundary dimensions of the parcel, using terminal points and angles.

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSOriginal Survey = cadastral survey which creates land boundaries and marks them for the first time

Plat = A surveyed map of a town, section, or subdivision indicating the exact locations and boundaries of individual properties, streets, easements, and public recreation areas.

Setback = Zoning restrictions on the amount of bare land required surrounding improvements; the amount of space required between the lot line and the building line

Subdivision = Land that has been divided by the owner (subdivider) into individual parcels or lots which have been grouped into blocks. These lots, together with streets, alleys, parks, schools, planned commercial areas, and public utility easements, are recorded on a plat

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSSurvey = The process by which boundaries are measured and the locations or forms of land areas are determined

Easement = areas of land owned by the property owner, but in which other parties, such as utility companies, may have limited rights granted for a specific purpose.

Right-of-way = a parcel of land granted by deed or easement for construction and maintenance according to a designated use. This may include highways, streets, canals, ditches, or other uses

Latitude = A measure of relative position north or south on the Earth's surface, measured in degrees from the equator, which has a latitude of 0, with the poles having a latitude of 90 north and south

Longitude = is a geographic coordinate that specifies the east-west position of a point on the Earth's surface

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSPrime Meridian = the longitude that passes through the Royal Observatory, Greenwich, England, establishes the position of zero degrees longitude.

Mean Sea Level = is a measure of the average height of the ocean's surface (such as the halfway point between the mean high tide and the mean low tide)

Datum = is a reference from which measurements are made

Contour Lines = a line on a map joining points of equal height above or below sea level

Topographic Map = is a type of map characterized by large-scale detail and quantitative representation of relief

Sample Contour Lines

How to Determine Elevation Using Topographic Map Find the location of the point in the mapLook for the Index ContourFind the elevationDetermine the direction of the slopeCount the contour intervalsInterpolate

http://raider.mountunion.edu/~mcnaugma/topographic%20maps/contour.htm

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSBearings = Bearings are used to indicate angular orientation with respect to the earth

Benchmark = A survey mark made on a monument having a known location and elevation, serving as a reference point for surveying.

Tie Line = A survey line that connects a point to other surveyed lines

Property Line = describes the legal boundary of a parcel of land

BLLM = Bureau of Lands Location Monument

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSTCT = Transfer Certificate of Title

OCT = Original Certificate of Title

Free-Patent = is a legitimate proof of ownership of public land in the Philippines granted by the Philippine government. It is an agreement between the government and the grantee, that he or she is charged of developing the land within a specified period of time.

Consolidation and Subdivision Survey = land survey of more than two contiguous lots merging to form a single lot, and a single lot subdivided into two or more lots, respectively.

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSCAD = Cadastral Survey

Csd = subdivision survey of Cadastral Lot

Psd = subdivision survey of a titled properties. All Psd surveys are conducted by a Private Geodetic Engineer

Bsd - Is a subdivision survey on government titled properties conducted by a Government Geodetic Engineer. If a private titled land is being surveyed by a Government Geodetic Engineer thru court order, the resulting survey is a Bsd.

Psu - is a survey on original land (not yet surveyed) by a private Geodetic Engineer. This kind of survey will be used by titling thru judicial proceedings (means thru court order).

FP - Free Patent survey by a Private Geodetic Engineer

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSTriangulation = a series of connected triangles which adjoin or overlap each other, with angles being measured from determined fixed stations

Trilateration = uses electronic distance measuring equiAMent to directly measure the lengths of the sides of triangles from which the angles can be calculated

Traverse = consists of a series of lines, whose lengths and directions are measured, connecting points whose positions are to be determinedopen traverse begins at a point of known position and ends at a station whose relative position is unknown.closed traverse begins and ends at the same point whose position is known

COMMON SURVEYING TERMS FOR REAL ESTATE BROKERS BROKERSLeveling is the operation of determining differences of elevation by measuring vertical distances directly on a graduated rod with the use of a leveling instrument such as a dumpy level, transit or Theodolites. This method is called Direct Leveling or Differential leveling

Indirect leveling can be done using the principle that differences in elevation are proportional to the differences in atmospheric pressure

Radiation is a surveying technique often used in conjunction with a plane table

Total Station

Traditional Transit

LAND SURVEYSFOR REAL ESTATE BROKERS

Land Surveying is the science and art of making all essential measurements to determine the relative position of points or physical and cultural details above, on, or beneath the surface of the Earth, and to depict them in a usable form, or to establish the position of points, or details.Surveying Uses :MathematicsGeometryTrigonometryPhysicsEngineering LawTWO TYPES OF SURVEYPlane surveying = considers the earth to be a flat surface-- a planeGeodetic surveying = takes into account the true shape of the earth. Detailed Engineering:These are carried for engineering feasibility studies, ground terrain analysis, design planning and during actual construction phase.

Topographic Survey Contour Mapping Hydrographic Survey Construction Layout Highway & Bridge Design Survey As-built Construction Survey

TYPES OF SURVEYING ACCORDING TO USETYPES OF SURVEYING ACCORDING TO USEGround Control Establishment :These are carried in surveys that require a high degree of accuracy with regards to both relative and absolute geodetic position.

GPS Geodetic Control Survey Vertical Control Leveling

TYPES OF SURVEYING ACCORDING TO USEProperty Boundary :

These surveys are carried primarily to determine and establish the legal boundary of real properties.

Cadastral Survey Parcellary Survey Subdivision Consolidation Survey Boundary Relocation Survey

Route Alignment :These services are required during the design & actual construction of road alignment and river embankment structures to determine the condition of the existing terrain.