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GEOCODING AND CENSUS GEOCODING AND CENSUS MAPPING WITH GIS IN MAPPING WITH GIS IN THE PHILIPPINES THE PHILIPPINES Amador Trazo Amador Trazo Databank and Information Services Databank and Information Services Division Division National Statistics Office National Statistics Office
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Geocoding And Census Mapping With Gis In The Philippines

Jan 13, 2015

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Page 1: Geocoding And Census Mapping With Gis In The Philippines

GEOCODING AND GEOCODING AND CENSUS MAPPING WITH CENSUS MAPPING WITH GIS IN THE PHILIPPINESGIS IN THE PHILIPPINES

Amador TrazoAmador TrazoDatabank and Information Services DivisionDatabank and Information Services DivisionNational Statistics OfficeNational Statistics Office

Page 2: Geocoding And Census Mapping With Gis In The Philippines

Geocoding ConceptsGeocoding Concepts

To identify each area for which tabulations will be To identify each area for which tabulations will be made and to group EAs to form tabulation areas, a made and to group EAs to form tabulation areas, a system of identification scheme will be needed. Each system of identification scheme will be needed. Each EA will be identified by a unique series of numbers. EA will be identified by a unique series of numbers. These numbers are called the geographic These numbers are called the geographic identification code scheme.identification code scheme.

The Philippines have used this type of coding scheme The Philippines have used this type of coding scheme not only in the 2000 Census of Population and not only in the 2000 Census of Population and Housing but also on all its censuses and surveys. We Housing but also on all its censuses and surveys. We call this coding scheme PSGC or the Philippine call this coding scheme PSGC or the Philippine Standard Geographic Codes.Standard Geographic Codes.

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Geocoding ConceptsGeocoding Concepts

It contains 9 digits, first two for regional code, next It contains 9 digits, first two for regional code, next two for provincial code, next two digits for two for provincial code, next two digits for municipal/city code and lastly, three digits for the municipal/city code and lastly, three digits for the barangay (or village) code. barangay (or village) code.

Barangay is the smallest political unit in the Barangay is the smallest political unit in the country. Generally, its enumeration is assigned to country. Generally, its enumeration is assigned to one enumerator. For enumeration purposes, a one enumerator. For enumeration purposes, a large barangay is usually split into parts and each large barangay is usually split into parts and each part is called an Enumeration Area (EA). Usually part is called an Enumeration Area (EA). Usually an EA is composed of 350 to 500 householdsan EA is composed of 350 to 500 households

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Sample: PSGCSample: PSGC

Geocoding ConceptsGeocoding Concepts

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Uses of PSGCUses of PSGCAside from being an instrument of securing uniformity and Aside from being an instrument of securing uniformity and comparability of various statistics relating to geographic comparability of various statistics relating to geographic areas, the PSGC has the following other uses: areas, the PSGC has the following other uses: 1. As a guide in national as well as local development planning1. As a guide in national as well as local development planning 2. As a comprehensive area frame in the conduct of censuses 2. As a comprehensive area frame in the conduct of censuses

and sample surveys and market studiesand sample surveys and market studies3. 3. As a comprehensive list of LGUs in the internal revenue As a comprehensive list of LGUs in the internal revenue

allocation (IRA)allocation (IRA)

4. 4. As basis in the establishment of precincts/voting centersAs basis in the establishment of precincts/voting centers

5. Establishment of databases5. Establishment of databases

6. 6. Development of geographic information systems (GIS). Development of geographic information systems (GIS).

7. Updating of maps.7. Updating of maps.

Geocoding ConceptsGeocoding Concepts

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Enumeration AreaEnumeration Area

For censuses and For censuses and surveys, the surveys, the Philippine National Philippine National Statistics Office Statistics Office uses 2-digit uses 2-digit enumeration area enumeration area code and maintains code and maintains an Enumeration an Enumeration Area Reference Area Reference Code (EARF) that is Code (EARF) that is used for the conduct used for the conduct of censuses and of censuses and surveys. surveys.

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After the geographic identification code scheme After the geographic identification code scheme is established and the EA boundaries are final, is established and the EA boundaries are final, the EAs will be numbered on the maps. A good the EAs will be numbered on the maps. A good method of numbering EAs on map is to begin at method of numbering EAs on map is to begin at the northwest corner of each area and number the northwest corner of each area and number in serpentine fashion; that is, go back and forth in serpentine fashion; that is, go back and forth across the area. across the area.

Thus, the lower numbers will be at the northern Thus, the lower numbers will be at the northern edge and higher numbers at the southern edge edge and higher numbers at the southern edge of the area. of the area.

Enumeration AreaEnumeration Area

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Sample map with EA delineationSample map with EA delineation

Enumeration Enumeration Area (EA) Area (EA) CodeCode

Enumeration AreaEnumeration Area

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Geographic IndentificationGeographic Indentification

In our census questionnaires, there is a portion called In our census questionnaires, there is a portion called Geographic Identification.Geographic Identification.

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It is composed of It is composed of Province, Province, City/Municipality, City/Municipality, Barangay, Barangay, Enumeration Area Enumeration Area Number, Building Number, Building Serial Number Serial Number (BSN), Housing (BSN), Housing Unit Serial Number Unit Serial Number (HUSN), (HUSN), Household Serial Household Serial Number (HSN), Number (HSN), etc.etc.

Geographic IndentificationGeographic Indentification

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We consider the We consider the Province at the Province at the highest level and not highest level and not the Region because the Region because all provinces have a all provinces have a unique code, unique code, regardless of its regardless of its Region. While the Region. While the City/Municipality City/Municipality code is unique only code is unique only in its province, same in its province, same with Barangay, with Barangay, Enumeration Area, Enumeration Area, BSN, HUSN, and so BSN, HUSN, and so forth.forth.

Geographic IndentificationGeographic Indentification

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The BSN The BSN represents all the represents all the buildings and buildings and houses found in a houses found in a given EA. It can given EA. It can be composed of be composed of one or more one or more housing unit. The housing unit. The HUSN represents HUSN represents the housing unit the housing unit within a building, within a building, the HSN within a the HSN within a housing unit.housing unit.

Geographic IndentificationGeographic Indentification

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Two-digit line Two-digit line numbers are numbers are assigned for assigned for every household every household member. In this member. In this way every record way every record in our census in our census data can have a data can have a unique identifier unique identifier or code. or code.

Geographic IndentificationGeographic Indentification

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A household is a A household is a social unit social unit consisting of a consisting of a person living person living alone or a group alone or a group of persons who of persons who sleep in the same sleep in the same housing unit and housing unit and have a common have a common arrangement in arrangement in the preparation the preparation and consumption and consumption of food. of food.

Geographic IndentificationGeographic Indentification

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Experiences In Census 2000Experiences In Census 2000

The latest mapping innovation introduced in the The latest mapping innovation introduced in the millennium census was the use of digitized millennium census was the use of digitized maps translated from topographic aerial photos maps translated from topographic aerial photos of all barangays in Metro Manila. This project of all barangays in Metro Manila. This project was a result of the agreement signed between was a result of the agreement signed between the National Statistics Office and BayanMap the National Statistics Office and BayanMap Corporation (BMC), a domestic and private Corporation (BMC), a domestic and private corporation. The undertaking commenced on corporation. The undertaking commenced on January 17, 2000 and expected to be January 17, 2000 and expected to be completed on September 15, 2000. completed on September 15, 2000.

Digitized Aerial MapsDigitized Aerial Maps

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Anticipating the need to come up with a comprehensive Anticipating the need to come up with a comprehensive digitized map. BMC undertook an extensive field survey digitized map. BMC undertook an extensive field survey in the barangays of Metro Manila to gather basic map in the barangays of Metro Manila to gather basic map information such as house numbers, street names, and information such as house numbers, street names, and other relevant map information to supplement the quality other relevant map information to supplement the quality of the digital translation. of the digital translation.

Eventually, BMC provided NSO with the printed copies of Eventually, BMC provided NSO with the printed copies of digitized maps and household list of barangays. An digitized maps and household list of barangays. An estimated total of 1,694 barangays in Metro Manila, estimated total of 1,694 barangays in Metro Manila, comprising of 4,883 EAs, were taken aerial photographs comprising of 4,883 EAs, were taken aerial photographs for the digital translation.for the digital translation.

Digitized Aerial MapsDigitized Aerial Maps (cont) (cont)

Experiences In Census 2000Experiences In Census 2000

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However, due to two (2) barangays in Manila that were However, due to two (2) barangays in Manila that were merged and abolished and unavailability of BMC merged and abolished and unavailability of BMC coverage for the municipalities of Pateros and Taguig, coverage for the municipalities of Pateros and Taguig, the final count of barangays the NSO expected to receive the final count of barangays the NSO expected to receive from BMC was reduced to 1,664 barangays.from BMC was reduced to 1,664 barangays.

As reported by our regional office in National Capital As reported by our regional office in National Capital Region, only 99.6 percent printed digitized barangay Region, only 99.6 percent printed digitized barangay maps were received. After verification/delineation, only maps were received. After verification/delineation, only 91.3 percent segmented EAs were received for use 91.3 percent segmented EAs were received for use during the census operations. during the census operations.

Digitized Aerial MapsDigitized Aerial Maps (cont) (cont)

Experiences In Census 2000Experiences In Census 2000

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Due to unforeseen volume of paper maps, EA maps from Due to unforeseen volume of paper maps, EA maps from BMC were received very late. Just more than fifty (50) percent BMC were received very late. Just more than fifty (50) percent were received on the first week of May 2000. were received on the first week of May 2000.

Not all the EA maps prepared by BMC were used for the Not all the EA maps prepared by BMC were used for the census operations as majority of these were transmitted after census operations as majority of these were transmitted after the start of the enumeration period. The delay in transmitting the start of the enumeration period. The delay in transmitting the EA maps to the enumerators (ENs) caused problems the EA maps to the enumerators (ENs) caused problems during census operation like omission or duplication of certain during census operation like omission or duplication of certain areas, thus, the census operation in the National Capital areas, thus, the census operation in the National Capital Region (NCR) had to be extended to ensure the complete Region (NCR) had to be extended to ensure the complete count of the population. Moreover, some teacher-ENs count of the population. Moreover, some teacher-ENs personally followed up their EA maps from BMC.personally followed up their EA maps from BMC.

Digitized Aerial MapsDigitized Aerial Maps (cont) (cont)

Experiences In Census 2000Experiences In Census 2000

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Problems EncounteredProblems Encountered

1. 1. One district in NCR encountered a delay in delineating One district in NCR encountered a delay in delineating barangays during the pre-enumeration phase.barangays during the pre-enumeration phase.

2. 2. The BMC maps were not detailed in terms of street names, The BMC maps were not detailed in terms of street names, house numbers, and other notable features.house numbers, and other notable features.

3. 3. Inaccuracy of BMC maps caused more confusion among Inaccuracy of BMC maps caused more confusion among the hired teacher-enumerators as the BMC maps did not the hired teacher-enumerators as the BMC maps did not contain complete addresses of buildings and of other contain complete addresses of buildings and of other structures and did not even define the geometric figures structures and did not even define the geometric figures on the digitized maps.on the digitized maps.

4. 4. BMC maps for some areas in NCR were delivered late. BMC maps for some areas in NCR were delivered late. And some building features did not match with the actual And some building features did not match with the actual buildings during the ocular inspection. buildings during the ocular inspection.

Experiences In Census 2000Experiences In Census 2000

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Action TakenAction Taken

On the delayed distribution of barangay/EA maps and land On the delayed distribution of barangay/EA maps and land outdated maps. The concerned District Statistical Officer and outdated maps. The concerned District Statistical Officer and Census Area Supervisors approached the proper Census Area Supervisors approached the proper government agencies for clarification and technical support.government agencies for clarification and technical support.

In spite of the voluminous work, some provincial offices In spite of the voluminous work, some provincial offices managed to pull out some of their staff to do cartographic managed to pull out some of their staff to do cartographic works for census 2000, although some provincial works for census 2000, although some provincial personnel were not fully equipped nor fully prepared to do personnel were not fully equipped nor fully prepared to do cartographic works.cartographic works.

Experiences In Census 2000Experiences In Census 2000

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RecommendationsRecommendations

1. Updating of barangay lists, verification of maps, delineation 1. Updating of barangay lists, verification of maps, delineation of barangay boundaries, and other similar mapping and of barangay boundaries, and other similar mapping and cartographic jobs should be undertaken six months to one cartographic jobs should be undertaken six months to one year prior to the actual census enumeration. year prior to the actual census enumeration.

2. 2. A bigger budget allocation for future mapping operations, A bigger budget allocation for future mapping operations, which includes the hiring of cartographers at the provincial which includes the hiring of cartographers at the provincial offices.offices.

3. Maps should contain the buildings, the streets and other 3. Maps should contain the buildings, the streets and other geometric figures on the maps. It should also be properly geometric figures on the maps. It should also be properly labeled before distribution.labeled before distribution.

The following were recommended for successful future data-The following were recommended for successful future data-gathering activities:gathering activities:

Experiences In Census 2000Experiences In Census 2000

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Data DisseminationData Dissemination

C2KPUF data files for the whole C2KPUF data files for the whole Philippines are stored in Philippines are stored in compact disc which can be compact disc which can be accessed using standard accessed using standard CDROM readers. It comes with CDROM readers. It comes with the Integrated Microcomputer the Integrated Microcomputer Processing System (IMPS) Processing System (IMPS) version 4.1 developed by the version 4.1 developed by the US Bureau of Census. It is a US Bureau of Census. It is a software that allows creation software that allows creation and maintenance of data and maintenance of data dictionaries, perform cross-dictionaries, perform cross-tabulations, and viewing of tabulations, and viewing of tables and text files. tables and text files.

Census 200 Public Use File (C2KPUF)Census 200 Public Use File (C2KPUF)

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Data DisseminationData Dissemination

It contains population characteristics for the whole Philippines down It contains population characteristics for the whole Philippines down to barangay level: to barangay level:

Census 200 Public Use File (C2KPUF) (cont)Census 200 Public Use File (C2KPUF) (cont)

1.1. Relationship to household headRelationship to household head2.2. Whether or not a person was an Whether or not a person was an

overseas workeroverseas worker3.3. Age as of last birthdayAge as of last birthday4.4. SexSex5.5. AgeAge6.6. Civil StatusCivil Status7.7. DisabilityDisability8.8. EthnicityEthnicity9.9. Highest Grade CompletedHighest Grade Completed10.10. Trade SkillsTrade Skills11.11. Economic Activity Economic Activity

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Data DisseminationData Dissemination

Statistics come alive when plotted Statistics come alive when plotted with interactive maps. NSO is now with interactive maps. NSO is now using Geographic Information using Geographic Information System (GIS) to present its census System (GIS) to present its census and survey data. This tool enables and survey data. This tool enables researchers to visualize and researchers to visualize and present data that is more relevant present data that is more relevant to data users. to data users.

Data Kit of Official Philippine Statistics (Datos) Data Kit of Official Philippine Statistics (Datos)

The Data Kit of Official Philippine The Data Kit of Official Philippine Statistics is an information package Statistics is an information package in compact disc that offers you easy in compact disc that offers you easy access to the statistical database of access to the statistical database of the country, region, province, the country, region, province, city/municipality or barangay. city/municipality or barangay.

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Data DisseminationData DisseminationData Kit of Official Philippine Statistics (Datos)Data Kit of Official Philippine Statistics (Datos)Datos contains the following physical and economic profile:Datos contains the following physical and economic profile:

1.1. Population size (1980, 1990, 1995 and 2000)Population size (1980, 1990, 1995 and 2000)2.2. Number of establishments Number of establishments 3.3. Characteristics of the barangayCharacteristics of the barangay4.4. Number of employed in each establishment in the business and industry Number of employed in each establishment in the business and industry

sector sector 5.5. Membership in legal and economic organizations Membership in legal and economic organizations 6.6. Characteristics and services that can be found in a barangay.Characteristics and services that can be found in a barangay.

1.1. Start your own GIS by adding layers of dataStart your own GIS by adding layers of data2.2. Do instant analysis. (For example, you can find out where the population Do instant analysis. (For example, you can find out where the population

and manufacturing establishments are concentrated.and manufacturing establishments are concentrated.3.3. Compute simple calculations using the data included in this product.Compute simple calculations using the data included in this product.4.4. Create or print thematic maps of the geographic level of your choice.Create or print thematic maps of the geographic level of your choice.5.5. Download the database file in Excel.Download the database file in Excel.

Using Datos, you can do the following: Using Datos, you can do the following:

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Data DisseminationData DisseminationData Kit of Official Philippine Statistics (Datos)Data Kit of Official Philippine Statistics (Datos)

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Data DisseminationData DisseminationData Kit of Official Philippine Statistics (Datos)Data Kit of Official Philippine Statistics (Datos)

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Current GIS DevelopmentCurrent GIS Development

The Updating of the List of Establishments is one of the The Updating of the List of Establishments is one of the regular activities of the Philippine National Statistics. It regular activities of the Philippine National Statistics. It is undertaken primarily to provide an updated and is undertaken primarily to provide an updated and reliable sampling frame for the census and survey of reliable sampling frame for the census and survey of establishments. establishments.

The ULE involves (1) capturing “new” establishments The ULE involves (1) capturing “new” establishments and listing their characteristics; (2) updating the status and listing their characteristics; (2) updating the status and characteristics of “old” establishments; and (3) de-and characteristics of “old” establishments; and (3) de-listing “closed” establishments that should no longer listing “closed” establishments that should no longer form part of the List of Establishments (LE).form part of the List of Establishments (LE).

2004 Updating of the List of Establishments (ULE)2004 Updating of the List of Establishments (ULE)

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The 2004 ULE was conducted in preparation for the 2005 The 2004 ULE was conducted in preparation for the 2005 Census of Philippine Business and Industry (CPBI). Part Census of Philippine Business and Industry (CPBI). Part of its field operation is to introduce the use of GPS of its field operation is to introduce the use of GPS (Global Positioning System) receivers in plotting the (Global Positioning System) receivers in plotting the relative location of establishments, with Quezon City as relative location of establishments, with Quezon City as pilot area. pilot area.

Quezon City is a highly urbanized city situated at the Quezon City is a highly urbanized city situated at the Northeast portion of Manila. It is the richest local Northeast portion of Manila. It is the richest local government in the country in terms of current assets, government in the country in terms of current assets, cash in banks, share on internal revenue allotment, gross cash in banks, share on internal revenue allotment, gross income, and gross net income. income, and gross net income. During this activity, we During this activity, we have recorded the coordinates of 2,087 buildings with have recorded the coordinates of 2,087 buildings with establishment.establishment.

2004 Updating of the List of Establishments (ULE)2004 Updating of the List of Establishments (ULE)

Current GIS DevelopmentCurrent GIS Development

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This pilot activity was conducted after the enumeration This pilot activity was conducted after the enumeration period. Several teams were formed for this activity, period. Several teams were formed for this activity, each team having two members will use a GPS each team having two members will use a GPS receiver, printed copy of barangay maps with plotted receiver, printed copy of barangay maps with plotted buildings with establishments and a ULE Form 8 to buildings with establishments and a ULE Form 8 to record the coordinates and basic building information. record the coordinates and basic building information.

The idea is to have one team member familiar with ULE The idea is to have one team member familiar with ULE concepts and the other (usually from the NSO mapping concepts and the other (usually from the NSO mapping group) familiar with the GPS mapping operation.group) familiar with the GPS mapping operation.

2004 Updating of the List of Establishments (ULE)2004 Updating of the List of Establishments (ULE)

Current GIS DevelopmentCurrent GIS Development

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During this operation, each team is required to record 70 During this operation, each team is required to record 70 waypoints per day as an output. Those recorded waypoints per day as an output. Those recorded waypoints were composed of a minimum of 40 waypoints were composed of a minimum of 40 coordinates of buildings with establishments, and the rest coordinates of buildings with establishments, and the rest are prominent landmarks and updated road networks.are prominent landmarks and updated road networks.

Since our GPS receivers (Garmin Etrex) has a Since our GPS receivers (Garmin Etrex) has a maximum capacity of 500 waypoints or coordinates, maximum capacity of 500 waypoints or coordinates, each team is required to report to the Mapping Group each team is required to report to the Mapping Group at least once a week for downloading of recorded at least once a week for downloading of recorded waypoints.waypoints.

2004 Updating of the List of Establishments (ULE)2004 Updating of the List of Establishments (ULE)

Current GIS DevelopmentCurrent GIS Development

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Some coordinates of establishments that are out of Some coordinates of establishments that are out of bounce have a very high GPS accuracy or poor bounce have a very high GPS accuracy or poor satellite connection ranging from 25 to 50 meters. These satellite connection ranging from 25 to 50 meters. These are unavoidable situations where GPS signals are are unavoidable situations where GPS signals are blocked by cloudy skies or tall buildings/structures. blocked by cloudy skies or tall buildings/structures.

Most of these buildings with establishments were Most of these buildings with establishments were adjusted to its proper location or rectified during adjusted to its proper location or rectified during uploading process. The acceptable GPS accuracy must uploading process. The acceptable GPS accuracy must be at least 15 meters. be at least 15 meters.

Some teams used bicycles for areas where buildings Some teams used bicycles for areas where buildings with establishments are distant from each other. with establishments are distant from each other.

2004 Updating of the List of Establishments (ULE)2004 Updating of the List of Establishments (ULE)

Current GIS DevelopmentCurrent GIS Development

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One big advantage of this activity is the one hundred One big advantage of this activity is the one hundred percent verification of the location of buildings with percent verification of the location of buildings with establishments. The team found some establishments establishments. The team found some establishments that were not included during enumeration. that were not included during enumeration.

They recorded the coordinates of these buildings and They recorded the coordinates of these buildings and report it to the concerned subject matter division for report it to the concerned subject matter division for action matter. They also found some establishments that action matter. They also found some establishments that are plotted in the wrong area or streets. are plotted in the wrong area or streets.

2004 Updating of the List of Establishments (ULE)2004 Updating of the List of Establishments (ULE)

Current GIS DevelopmentCurrent GIS Development

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Recommendations:Recommendations:1. Additional information on buildings/houses must be included like 1. Additional information on buildings/houses must be included like

name of buildings or owner’s name, type of building (industrial, name of buildings or owner’s name, type of building (industrial, commercial, residential, etc.) and number of floors.commercial, residential, etc.) and number of floors.

2. 2. Since GIS road networks in Quezon City are drawn to scale or Since GIS road networks in Quezon City are drawn to scale or have accurate location and our GPS receivers yield 8 to 12 have accurate location and our GPS receivers yield 8 to 12 meters accuracy, it is better to plot some buildings/houses meters accuracy, it is better to plot some buildings/houses directly on the printed GIS maps without getting its GPS directly on the printed GIS maps without getting its GPS coordinates, especially those located on road corners.coordinates, especially those located on road corners.

3. Nowadays, most data users use GIS in their studies and 3. Nowadays, most data users use GIS in their studies and researches, and it is better to have one BSN for both researches, and it is better to have one BSN for both Household and Establishment surveys and censuses.Household and Establishment surveys and censuses.

2004 Updating of the List of Establishments (ULE)2004 Updating of the List of Establishments (ULE)

Current GIS DevelopmentCurrent GIS Development

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Most of our GIS maps don’t have road networks, only political Most of our GIS maps don’t have road networks, only political boundaries down to the barangay level. Our barangay/ea boundaries down to the barangay level. Our barangay/ea maps are sketch maps drawn by the enumerators. Most of maps are sketch maps drawn by the enumerators. Most of the barangay/ea maps when put together will not the barangay/ea maps when put together will not correspond to its municipal boundary. correspond to its municipal boundary.

The main problem in census mapping is on highly congested The main problem in census mapping is on highly congested areas, where our field men are having a hard time plotting areas, where our field men are having a hard time plotting the road networks or alleys even with the use of GPS and the road networks or alleys even with the use of GPS and high-resolution images. Most of the residents in these high-resolution images. Most of the residents in these areas are informal settlers. areas are informal settlers.

Current StatusCurrent Status

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Future GIS DevelopmentFuture GIS Development

We have inventoried existing GIS in all Local Government We have inventoried existing GIS in all Local Government Units (LGU) last 2005 and plans to acquire features of their Units (LGU) last 2005 and plans to acquire features of their GIS that are useful in census mapping in exchange for our GIS that are useful in census mapping in exchange for our census data.census data.

I.I. Capitalizing on GIS Development in the Capitalizing on GIS Development in the Local Government UnitsLocal Government Units

GIS Training will be conducted this coming October to all GIS Training will be conducted this coming October to all Regional Offices. This training will focus on the Regional Offices. This training will focus on the downloading, geo-referencing, and digitization of satellite downloading, geo-referencing, and digitization of satellite images from Google Earth. images from Google Earth.

II.II. Utilization of Google Earth Satellite Utilization of Google Earth Satellite ImagesImages

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III.III. Updating of GIS Maps Updating of GIS Maps

A pilot activity in updating our GIS maps will be conducted A pilot activity in updating our GIS maps will be conducted this year in one of our major city (Angeles City, Pampanga) this year in one of our major city (Angeles City, Pampanga) with available Google Earth map. The idea is to map all the with available Google Earth map. The idea is to map all the road networks and prominent landmarks and make an road networks and prominent landmarks and make an assessment on its accuracy. This mapping activity will assessment on its accuracy. This mapping activity will acquire the method of Mobile Mapping System (MMS) and acquire the method of Mobile Mapping System (MMS) and combined use of magnetic compass with pacing combined use of magnetic compass with pacing techniques.techniques.

Future GIS DevelopmentFuture GIS Development

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III.III. Updating of GIS Maps (cont) Updating of GIS Maps (cont)

MMS is the process of using GPS to determine the MMS is the process of using GPS to determine the coordinates of the center of a roadway. With road coordinates of the center of a roadway. With road centerline, we can easily define political boundaries and centerline, we can easily define political boundaries and determine approximate location of prominent landmarks. In determine approximate location of prominent landmarks. In the last ten years, the mobile mapping technology has the last ten years, the mobile mapping technology has grown from the theory to a standard mapping tool. It differs grown from the theory to a standard mapping tool. It differs itself with other mapping method (satellite imagery and itself with other mapping method (satellite imagery and aerial photo) mainly by its fast data collection speed and its aerial photo) mainly by its fast data collection speed and its low cost.low cost.

Future GIS DevelopmentFuture GIS Development

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III.III. Updating of GIS Maps (cont) Updating of GIS Maps (cont)

For the Philippine National Statistics Office, we design our For the Philippine National Statistics Office, we design our own Mobile Mapping System. A team composed of two own Mobile Mapping System. A team composed of two field personnel, preferably with motorcycle, and a GPS field personnel, preferably with motorcycle, and a GPS receiver. One will drive the motorcycle and the other will receiver. One will drive the motorcycle and the other will handle the GPS mapping procedures. They will get the handle the GPS mapping procedures. They will get the road centerlines by recording tracks from the GPS receiver road centerlines by recording tracks from the GPS receiver while moving at varying speed, at the same time plot the while moving at varying speed, at the same time plot the location of prominent landmarks.location of prominent landmarks.

Future GIS DevelopmentFuture GIS Development

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III.III. Updating of GIS Maps (cont) Updating of GIS Maps (cont)

Combined use of magnetic compass with pacing techniques Combined use of magnetic compass with pacing techniques can serve as a backup should a GPS fail to operate properly. can serve as a backup should a GPS fail to operate properly. GPS receivers may fail electronically or encounter field GPS receivers may fail electronically or encounter field conditions whereby satellite signals are unable to reach the conditions whereby satellite signals are unable to reach the receiver, such as heavy tree canopy or high-relief terrain, receiver, such as heavy tree canopy or high-relief terrain, high rise establishments, highly congested areas, etc. A high rise establishments, highly congested areas, etc. A magnetic compass can indicate the direction you are headed magnetic compass can indicate the direction you are headed relative to magnetic north, and pacing is a simple means of relative to magnetic north, and pacing is a simple means of measuring linear distance by walking. measuring linear distance by walking.

This activity is designed to be a continuing program. The idea This activity is designed to be a continuing program. The idea is to have a mapping operation on every surveys or censuses is to have a mapping operation on every surveys or censuses to be conducted. to be conducted.

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IV.IV. Proposed Collaborative Mapping Project with Proposed Collaborative Mapping Project with Colleges and Universities Colleges and Universities

The NSO proposes a collaborative arrangement with The NSO proposes a collaborative arrangement with selected Colleges and Universities to provide opportunities selected Colleges and Universities to provide opportunities for their students to learn concepts of GIS and Global for their students to learn concepts of GIS and Global Positioning System (GPS) technologies and to apply such Positioning System (GPS) technologies and to apply such concepts in a real world setting. Under the program, the concepts in a real world setting. Under the program, the University allows its students to be involved in the digital University allows its students to be involved in the digital mapping project of the NSO as on-the-job trainees. The mapping project of the NSO as on-the-job trainees. The students will then earn equivalent hours that will be students will then earn equivalent hours that will be credited towards fulfillment of the needed on-the-job credited towards fulfillment of the needed on-the-job training (OJT) hours normally required by the University. training (OJT) hours normally required by the University.

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IV.IV. Proposed Collaborative Mapping Project with Proposed Collaborative Mapping Project with Colleges and Universities (cont)Colleges and Universities (cont)

1. Technical introduction on the concepts of GIS and GPS 1. Technical introduction on the concepts of GIS and GPS

2. 2. Orientation on the operation of a GPS receiver unitOrientation on the operation of a GPS receiver unit

3. 3. Opportunity for students to apply the conceptsOpportunity for students to apply the concepts

A.A. What the NSO will provide under the program:What the NSO will provide under the program:

4. 4. Acknowledgment of contribution of the UniversityAcknowledgment of contribution of the University

5. 5. OJT allowance per-8-hour completed assignment.OJT allowance per-8-hour completed assignment.

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IV.IV. Proposed Collaborative Mapping Project with Proposed Collaborative Mapping Project with Colleges and Universities (cont)Colleges and Universities (cont)

1.   1.   Enhancement of its academic program through actual Enhancement of its academic program through actual student exposure to the technologystudent exposure to the technology

2. 2. University gets a complimentary copy of the digital map University gets a complimentary copy of the digital map output for the area where its students were involvedoutput for the area where its students were involved

B.B. Benefits of the University:Benefits of the University:

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IV.IV. Proposed Collaborative Mapping Project with Proposed Collaborative Mapping Project with Colleges and Universities (cont)Colleges and Universities (cont)

1. 1. Access to professors and graduate students who are Access to professors and graduate students who are highly skilled at data analysis and have a GIS highly skilled at data analysis and have a GIS infrastructure in place infrastructure in place

2. 2. Possible access to funding sources that support Possible access to funding sources that support community-university partnershipscommunity-university partnerships

3. 3. Low cost of manpowerLow cost of manpower

C.C. Advantages of collaborative tie-up with universities:Advantages of collaborative tie-up with universities:

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Thank You.Thank You.Salamat Po.Salamat Po.