Module 5: Occupation, Encroachments, Plans, and Government Processing - Worked Examples

A verified survey shows an existing fence is 0.42 m inside the client's retraced parcel boundary along one segment.

A straight, verified subject-parcel boundary course is stationed east from its identified starting corner. For this exercise, the subject-parcel side is positive. A fence point at Sta. $22.000\text{ m}$ has signed perpendicular offset $d_1=+0.600\text{ m}$; at Sta. $30.000\text{ m}$, it has $d_2=-0.600\text{ m}$. Estimate the station where the fence crosses the boundary between these observations.

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A straight boundary course is stationed in the stated direction. Signed perpendicular fence offsets, with positive on the subject-parcel side, are $+0.300\text{ m}$ at Sta. $10.000\text{ m}$, $-0.100\text{ m}$ at Sta. $15.000\text{ m}$, and $+0.200\text{ m}$ at Sta. $25.000\text{ m}$. Assuming linear change only between adjacent observations, find each zero crossing.

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A building wall is inside the parcel, but a roof projection extends approximately 0.18 m beyond the retraced boundary.

The wall can be measured accurately, but the boundary evidence at one corner remains materially conflicting after the first field visit.

A final plan lists one boundary as 36.250 m, while the draft technical description lists the same course as 36.520 m.

A client first asks for a relocation plan, then decides to divide the parcel into two lots for separate registration.

A DENR-approved subdivision plan is ready for a transaction that will be submitted for registration.

An encoded/electronic technical description for a resulting lot contains a distance that differs from the DENR-approved plan.

Two plotted approved-record sets appear to overlap by about 0.30 m along a common boundary.

Two synthetic adjoining record plots use the same project coordinate frame and show parallel common-boundary lines over Northings $0.000$ to $20.000\text{ m}$. Parcel Alpha's east line is at $E=100.000\text{ m}$; Parcel Beta's west line is at $E=99.700\text{ m}$. Describe the plotted discrepancy.

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