term of reference gps survey

TERM OF REFERENCE

GLOBAL POSITIONING SYSTEM (GPS) SURVEY FOR VILLAGE BOUNDARY DEMARCATION

PROJECT NAME: PARTICIPATORY MAPPING AND PLANNING (PMAP)

PREPARED BY: Abt Associates Gandaria 8 Office Tower, Suite 813 Jalan Sultan Iskandar Muda, Arteri Pondok Indah Jakarta Selatan

00 Final Novayanty Albertus Hadi Geoffrey Swenson 5 August 2015

Rev Description Prepared Checked by Approved Date

TERM OF REFERENCE GPS SURVEY FOR VILLAGE BOUNDARY DEMACRATION

Table of Contents

1. INTRODUCTION ................................................................................................................................... 4

1.1 SCOPE OF WORK ......................................................................................................................... 4

1.2 WORK AREA .............................................................................................................................. 5

1.3 PROJECT MANAGEMENT .............................................................................................................. 7

2. DEFINITION ........................................................................................................................................ 7

3. GEODETIC PARAMETER ........................................................................................................................ 6

4. PERSONNEL AND EQUIPMENT ............................................................................................................... 7

4.1 PERSONNEL ................................................................................................................................ 7

4.2 EQUIPMENT ............................................................................................................................... 7

5. METHODOLOGY .................................................................................................................................. 7

5.1 DATA COLLECTION PARAMETER .................................................................................................... 7

5.2 GROUND CONTROL POINT ............................................................................................................ 8

5.3 VILLAGE BOUNDARY PILLAR (PBU/PBA) ...................................................................................... 9

6. OPERATION ...................................................................................................................................... 10

6.1 EQUIPMENT VERIFICATION ......................................................................................................... 10

6.2 GPS OBSERVATION ................................................................................................................... 10

6.3 FIELD PROCESSING .................................................................................................................... 10

6.4 FIELD REPORT ........................................................................................................................... 11

6.5 TIME FRAME ............................................................................................................................ 12

7. DELIVERABLE .................................................................................................................................... 13


List of Figures

Figure 1 Jangkat Timur Sub District ........................................................................................................................ 5 Figure 2 Bonehau Sub District ................................................................................................................................. 6 Figure 3 GPS Static Observation ............................................................................................................................. 8 Figure 4 Fast-Static Observation ............................................................................................................................. 9

List of Tables

Table 1 List of Villages and estimated area of village in Jangkat Timur ................................................................. 6

Table 2 List of Villages and estimated area of village in Bonehau ......................................................................... 6

Table 3 Duration of GPS Static Observation (refer to appendix 1 of the Ministry Home Affair regulation 27 of

2006) ............................................................................................................................................................ 10

Table 4 Estimation number of GCP and PBU/PBA ................................................................................................ 10

Table 5 Work Plan and Schedule- GPS Survey Phase 1 ......................................................................................... 12


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1. INTRODUCTION

The Millennium Challenge Account (MCA) Indonesia and the Government of Indonesia want

to promote economic prosperity with low carbon growth. The program includes the Green

Prosperity Project, which has a component of Participatory Land Use Planning (PLUP)

Activity. The Activity covers the investment in administrative boundary setting, updating

and integration of land use inventories and enhancement of spatial plans at the district and

provincial levels. Recently MCA Indonesia launched Participatory Mapping and Planning

(PMaP) 1 project with project sites in the provinces of Jambi and West Sulawesi.

Abt Associates has been awarded a contract to carry out this project. The project has four

components: including Task 1: Participatory (with the community and local government)

determination, geo-location and physical demarcation of village boundaries (VBS), the

mapping of natural and cultural resource areas (RM) within the villages and the creation of

geo-spatial databases of the information collected – VBS/RM. The component has 18 stages

and one of the stages is to affirm boundary and place markers. For this purpose Abt

Associates seeks a consultancy service in geodetic measurement of village boundary pillars.

This term of reference describe the scope of work, project management, geodetic

parameter, methodology, field execution and deliverable.

1.1 SCOPE OF WORK

The purpose of this work is to determine the coordinates of village boundary pillar through

GPS survey with GNSS receiver in order to achieve five (5) cm accuracy as requirement for

this project.

The detail of scope of work as below:

To provide GPS receiver equipped with GNSS receiver along with experienced survey

technician/operator

To provide equipment verification prior to field operation

To establish ground control point (GCP) order 3/4 derive from the nearest national

ground control point provide by BIG. A five (5) cm is required for each GCP

To carry out GPS survey to determine the coordinate of pillar boundary (PBU/PBA).

A five (5) cm is required for each PBU/PBA


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To provide summary of baseline processing of each point. The least square

adjustment method is required for baseline processing.

To provide daily activities report on twenty four (24) hourly basis

To provide station description of each village boundary pillar.

1.2 WORK AREA

The first phase of this work will be carried out a simultaneous GPS survey operation at two

locations that are Bohehau- Mamuju, Sulawesi Barat and Jangkat Timur- Jambi.

The detail of work area as presented below:

Kecamatan Jangkat Timur – Provinsi Jambi ( Lat 2°33’S; Long 101°59'E)

Figure 1 Jangkat Timur Sub District

Indicative list of village and estimated area of village in Jangkat Timur Sub district as detail

below:

DISTRICT SUBDISTRICT VILLAGES ESTIMATED AREA (ha.)

MERANGIN JANGKAT TIMUR

PEMATANG PAUH BERINGIN TINGGI TANJUNG BENUANG GEDANG RANTAU SULI TALANG TEMBAGO BARU TANJUNG MUDO KOTO TEGUH JANGKAT KOTO BARU TANJUNG ALAM

11,157.4 11,461.2 4,347.1 3,926.0 970.1 8,961.1 707.2 4,889.6 699.9 4,380.8 3,228.4 3,870.6


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64,599.3

Table 1 List of Villages and estimated area of village in Jangkat Timur

Kecamatan Bonehau – Sulawesi Barat ( Lat : 2°34'S; Lon 119°21'E)

Figure 2 Bonehau Sub District

Indicative list of village and estimated area of village in Bonehau Sub district as detail below:

DISTRICT SUBDISTRICT VILLAGES ESTIMATED AREA (ha.)

MAMUJU BONEHAU

TAMALEA LUMIKA HINUA KINANTANG SALUTIWO BANUADA MAPPU BONEHAU BUTTU ADA

2,369.2 2,548.3 3,262.5 24,816.5 5,531.6 12,420.9 5,716.2 14,514.6 24,462.0 95,642.4

Table 2 List of Villages and estimated area of village in Bonehau


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1.3 PROJECT MANAGEMENT

To ensure a smooth and project successful operation, below is the project management

diagram as reference for line command/communication:

2. DEFINITION

GNSS

GNSS (Global Navigation Satellite System) is a satellite system that is used to pinpoint the

geographic location of a user's receiver anywhere in the world. Three GNSS systems are

currently in operation: the United States' Global Positioning System (GPS), the Russian

Federation's Global Orbiting Navigation Satellite System (GLONASS) and Europe's Galileo

GPS

The Global Positioning System operated and maintained by the United States Department of

Defense. Consists of a constellation of space based orbiting satellites, and a network of earth

based ground control stations.

Surveyor Team Leader

Surveyor Technician

Surveyor Technician

Surveyor Technician

Field Processor

Chief of Party Geofferey Swenson

Geodetic Engineer Novayanty

Task 1 Coord. Albertus Hadi


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GLONASS

Another navigation system similar to GPS, but operated by Russia. The number of satellites

in use had decreased in recent years, although plans to reinvigorate the system are

underway. Some GPS receivers can receive GLONASS signals also.

Galileo

The European Union navigation system.

Carrier Phase

The phase measurement of the GPS signal carrier wave. The L1 carrier wave is a sinusoidal

waveform modulated to represent the C/A code whereas the L2 carrier wave is a sinusoidal

waveform modulated to represent the military restricted P-code.

WGS84

World Geodetic System 1984. The default operating datum of GPS receivers.

ITRF2000

International Terrestrial Reference Frame 2000.

PDOP

Positional Dilution of Precision – a measure of the satellite geometry and its effect on the

computed position. A larger number means poorer satellite geometry, and a less accurate

computed position.

UTM

The Universal Transverse Mercator (UTM) conformal projection uses a 2-

dimensional Cartesian coordinate system to give locations on the surface of the Earth.

PBU

Pillar Batas Utama- Main Pillar of the village boundary

PBA

Pilar Batas Antara-Additional pillar boundary, normally located in between of PBU


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3. GEODETIC PARAMETER

WGS 84 is a default datum of all GPS receivers.

Ellipsoid Reference : WGS-84

Semi-major Axis (a) : 6378137.000m

Inverse flattening (1/f) : 298.257223563

Horizontal Datum : DGN 95

Projection parameters

Projection : Transverse Mercator

Grid Projection System : Universal Traverse Mercator

Jangkat Timur

UTM Zone : 47S

Central Meridian : 990E

UTM Zone : 48S


Bonehau

UTM Zone : 50S


Latitude of origin : 00 (equator)

False Easting : 500 000 m

False Northing : 10 000 000 m

Scale Factor : 0.9996

Unit of Coordinates : International Meters


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4. PERSONNEL AND EQUIPMENT

4.1 PERSONNEL

The following number of personnel involves in survey operation at each work area, one

being appointed as team leader:

1x Team Leader, holding bachelor degree in Geodetic and Geomatics Engineering

with minimum five (5) years experience in GPS Survey

3 x Experienced- Technician/operator with working experience in remote rural area

1x Experienced-Field Processor , holding bachelor degree in Geodetic and

Geomatics Engineering with minimum two (2) years experience in GPS Survey

4.2 EQUIPMENT

Surface positioning shall be provided by a multi-reference differential GPS system. The GPS

receiver must have the ability to capture the GNSS signal.

Accuracy of the surface positioning system shall be checked at a known location prior to the

beginning of the survey operation.

Below are the lists of equipment to be provided at each work area:

4x GPS GNSS receivers

4x Radio Communication

Personnel Protective Equipment (PPE) of each field operator

1x Laptop or PC for field processing

1x Software Processing

All software use should be in original version

5. METHODOLOGY

5.1 DATA COLLECTION PARAMETER

The data collection parameters should be confirmed prior to commencing data logging using

a suitable software package (eg: Trimble GPS configurator), or a survey controller (eg:TSCe)

set or confirm the following parameters:

Elevation mask 10°-15° (satellites below 10° above the horizon will be ignored)

PDOP mask - 7 (observations with a PDOP greater than 7 will be ignored)

Measurement logging rate - 15 seconds


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Position logging rate - 15 seconds

Logging location – either receiver or controller

File splitting – do not split

5.2 GROUND CONTROL POINT

The ground control point (GCP) will be determined by GPS static method. Static GPS is a

technique that can be used to obtain high quality coordinates for unknown points. It can be

used as a means of establishing survey control marks level 2 or 3 in areas where none exist.

Static GPS surveying typically uses a network or multiple baseline approach for positioning. It

may consist of multiple receivers, multiple baselines, multiple observational redundancies

and multiple sessions. A least squares adjustment of the observations is required.

The survey control mark should ties to the Nearest National Spatial Reference System Point

issued by Badan Informasi Geospasial (BIG) or Badan Pertanahan Nasional (BPN)

Figure 3 GPS Static Observation

The two baselines will be used in network adjustment to derive geographical coordinate

level 2/ 3 of the unknown point. At least Four (4) hours observation for each GCP divided

into two (2) session observations are the minimum requirement to achieve a five (5) cm

accuracy.

Initially, four GCP will be established at each work area and one of them will be located at

Government Sub District Office (Kantor Kecamatan ). The final number of GCP will be advise

latter depend on the field condition.


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5.3 VILLAGE BOUNDARY PILLAR (PBU/PBA)

In accordance with the Indonesia Government Home Affair Regulation - PP no. 27 tahun

2006, the PBU will be located at the beginning point of village boundary to the end and the

PBA is installed in between of PBU.

Frequency of boundary markers (according to PP no. 27 tahun 2006):

For village boundaries with high potentials (population density, economic value,

cultural value, etc.), the frequency of each pillar should be at least every 0.5 km to 1

km.

For village boundary pillars where potentials are lower, the pillars can be installed

between 1 km and 3 km apart.

A fast-static survey method will use to determine the coordinate of PBU/PBA. This will allow

shorter occupation times (i.e., 8 to 20+ minutes) using a radial baseline technique, network

technique, or a combination of the two. Baseline lengths may not exceed 20 kilometers.

Figure 4 Fast-Static Observation


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6. OPERATION

6.1 EQUIPMENT VERIFICATION

Equipment verification should be done prior to the survey operation commencement.

The result of equipment verification must be approved by Geodetic Engineer before the

survey operation start.

6.2 GPS OBSERVATION

During GPS observation, the control point/pillar should be cleared from any obstructions to

GPS satellite signal.

In general, the time offset between GPS observations as followed:

Baseline Length (km)

Minimum Observation Time

Single Frequency Dual Frequency 1-3 15 minutes 10 minutes

3-5 20 minutes 15 minutes

5-10 30 minutes 20 minutes

10-20 2 hours 1 hours

20-100 4 hours 2 hours

100-200 6 hours 3 hours Table 3 Duration of GPS Static Observation (refer to appendix 1 of the Ministry Home Affair regulation 27 of 2006)

The estimation of the number of GCP and PBU/PBA at each work area as presented below:

Sub District No of Pillar

GCP PBU PBA

Jangkat Timur 4 24 55

Bonehau 4 21 81

Table 4 Estimation number of GCP and PBU/PBA

The final number of PBU/PBA will be advised later, depend on the number of PBU/PBA as an

agreement between villagers, and also government during the village boundary workshop.

If there are any observations beyond the accuracy requirement due to human error or

equipment failure, the second observation for those pillars should be carried out on the

following day.

6.3 FIELD PROCESSING

A field processing will be generated daily to verify the quality of the GPS observation. As an

indicator of the survey quality, a project summary should be printed as supplied by the

software. It will indicate the information about the baseline processing and the adjustment


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routine. Such things as histograms and bell curves, ratios of precision for each point, etc. are

generally available for review.

6.4 FIELD REPORT

The field reports include station description and daily activities should be made available at

daily basis - the next day after the GPS survey carried out.


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6.5 TIME FRAME

Work Plan and Schedule- GPS Survey Phase 1

Days

No Task 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Jangkat Timur-Jambi

1 Mobilization

2 Equipment Verification

3 GCP Measurement

4 PBU/PBA Measurement

5 Field Processing

6 Demobilization

Bonehau-Sulawesi Barat

1 Mobilization

2 Equipment Verification

3 GCP Measurement

4 PBU/PBA Measurement

5 Field Processing

6 Demobilization

Table 5 Work Plan and Schedule- GPS Survey Phase 1


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7. DELIVERABLE

The list of deliverable submitted at the end of project as detailed below:

Raw data /DAT/RINEX data of each GCP and pillar

Summary of baseline processing of each GCP and pillar

Report of equipment verification

Daily activities

Personnel and equipment time sheet

Station description

Field observation form

term of reference gps survey

Documents

village boundary pillar

gps observation

equipment verification

project management

geodetic parameter

scope of work

work area

field processing