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planning > PPT 5 > Flashcards

PPT 5 Flashcards

1
Q

Types of Base Map

A

Sketch Plan
Relocation Plan
Subdivision Plan
Consolidation Plan

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2
Q

This may be a rough sketch or any official base plan
of a property.

A

Sketch Plan

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3
Q

A sketch plan of a property based on the relocation survey.

A

Relocation Plan

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4
Q

From subdivision survey or splitting a tract of land into smaller parcels.

A

Subdivision Plan

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5
Q

Re-mapping of two or more adjacent lots or parcels
of land, combining them into one larger parcel.

A

Consolidation Plan

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6
Q

Components of a Lot Plan

A

Technical Description
Benchmark
Sketch
Property Owner
Vicinity Map
Approval of LRA
Location
Lot No. / Title No.
Lot Area & Scale
Surveyor

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7
Q

How do we Sketch the Plan?

A

Direction of Lines
1. Interior Angles
2. Deflection Angles
3. Angles to the right
4. Bearing Azimuth

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8
Q
  • Angles between adjacent
    lines in a closed polygon.
  • They may be measured
    clockwise or counter-
    clockwise.
  • Re-entrant angles are
    interior angles greater than
    180 degrees.
  • The sum of the interior angle
    of any polygon is equal to
    (n - 2)(180 degrees), where
    n is the number of sides.

Exterior Angles
* Angles located outside a
closed polygon.

A

Interior Angles

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9
Q
  • The angles between a line and the prolongation of the preceding
    line.
  • May be turned to the right (clockwise) or turned to the left
    (counterclockwise) and appended with letters R or L.
  • Right deflections have the opposite signs of left deflections
  • Positive signs normally defines angle with deflection to the right.
  • May have values 0 to 180 degrees but often not used to angles
    greater than 90 degrees.
  • In a close polygon, the algebraic sum of the deflection angle should
    always equal 360 degrees.
A

Deflection Angles

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10
Q
  • These are angles measured clockwise from the preceding line to the
    succeeding line.
  • This is also called Azimuths.
A

Angles to the Right

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11
Q
  • Acute horizontal angles between the reference meridian and the line.
  • Contains angles that are between 0 to 90 degrees.
  • It always starts on either N or S and will turn E or W.
  • Bearings can be measured in reference to True or Magnetic meridian.
A

Bearings

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12
Q
  • The angle between the meridian and the line measured clockwise.
  • Contains angles that are between 0 to 360 degrees.
  • Reference meridian can be the N or S.
  • Azimuths can be true, magnetic, grid or assumed.
A

Azimuth

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13
Q

An imaginary line
between the North Pole
and the South Pole, drawn
on maps to help to show
the position of the place.

In surveying, it is the
direction of a line defined
by the horizontal angle
between the line and an
arbitrarily chosen
reference

A

Meridian

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14
Q

Types of Meridians:

A
  1. True Meridian
  2. Magnetic Meridian
  3. Grid Meridian
  4. Assumed Meridian
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15
Q

Also called astronomic or
geographic meridian.

A

True Meridian

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16
Q
  • A line of reference parallel to the
    magnetic lines of force.
  • Magnetic meridian is not parallel
    to the True meridian.
A

Meridian Magnetic

17
Q

A fixed line of reference
parallel to the central
meridian of a system plane
rectangular coordinates.

A

Grid Meridian

18
Q
  • This is an arbitrary chosen reference point
    taken for convenience.
  • This utilizes a well defined and permanent
    reference point.
  • Applicable plane surveys of limited extent.
A

Assumed Meridian

19
Q

are control points of permanent
location where other surveys are
referenced from.

A

Bureau of Lands Location
Monument (BLLM)

20
Q

Three attributes of a topographic map

A
  1. Elevation
  2. Slope
  3. Aspect
21
Q

*Elevation data are portrayed on topographic
maps as contour lines and spot elevations.
*For site planning purpose, an effective way to
visualize topographic relief is to create a
choropleth map of elevation.

A

Elevation

22
Q

*A contour line is the graphic representation of a contour on a plan or
map indicating locations with equal elevation.

A

Contours and Form

23
Q

*Spatial variation in a site’s elevation
creates slopes that have both a gradient
and an orientation.

A

Slopes

24
Q

*Slope orientation of the compass direction that the slope faces (for
example, north or northeast).

A

Aspect

25
Q

Contour Signatures and Landform

A
  • Ridge
    *Valley
    *Summit
    *Depression
26
Q

______ is raised, elongated landform. At
the narrow end of the form the contours
point in the downhill direction.

A

Ridge

27
Q

______ is an elongated depression that
forms the space between two ridges.

A

valley

28
Q

_______ is a landform, such as a knoll, hill, or mountain, which contains the highest point relative to the surrounding terrain.

A

Summit

29
Q

________ is a landform that contains the lowest point relative to the surrounding
terrain.

A

depression

30
Q

_______ are characterized by
contour lines that are spaced at increasing
distances in the downhill direction.

A

Concave slopes

31
Q

______ is the reverse of a
concave.

A

convex slope

32
Q
  • Along a _______, contour lines are
    spaces at equal distances.
  • The change in elevation occurs at a
    constant rate.
A

Uniform Slope

planning (8 decks)

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