The Application Of Google Earth In The Arrangement Of Industry And Trade Agglomeration Areas In Pekalongan City

Pekalongan City has a variety of potential areas that include the field of industry, services and trade or called agglomeration. The potential that exists is not only in the field of batik but also has beach tourism areas, culture, shopping, electronic trade, hotels, markets and so on. Based on the data from the Agency for Regional Development of Pekalongan City (Bappeda) in 2020 that in 2019 the investment growth was Rp. 3.29 trillion, the economic growth in the industrial sector was 4.84%, and the economic growth in the trade and services sector was 5.72%. Meanwhile, the economic income in 2019 in the Large Trade and Retail sector contributed the largest GDP of 21.79% while the smallest sector of the Water Supply, Waste Treatment, Waste and Recycling sector was 0.10%. With an area of 45.25 km² which has 4 sub-districts and 27 urban villages classified as a small area has limitation in choosing the ideal location, it is possible to have the emergence of centralization or concentration of industry in a certain area or on the other hand, there are several different types of centers and industries in one area because the area is very potential compared to other regions, this is in accordance with the spatial and regional planning (RTRW). For this reason, it is necessary to have a Geographic Information System (GIS) that is able to display the web-based agglomeration of industry and trade to ensure the quality and smooth flow of information about the existing potential. For this reason, the research that will be carried out uses the Research and Development (R&D) method, while the system development model used is Waterfall. In the creation and development of applications carried out with free and open-source software (Google Earth, global Mapper and others). The results of the research conducted can help the government in the context of making regional development policies based on the Geographic Information System of the Agglomeration of Industry and Trade so that between industry players there is no unfair competition but rather support and complement each other so as to increase the original income of the region, and investment for the achievement of the welfare of society


I. INTRODUCTION
Pekal ongan known as the City of Batik has various regional potentials that include the field of industry, service, and trade.The potential that exists is not only in the field of batik but also has beach tourism areas, culture, shopping, electronic commerce, hotels, markets and so on.Based on the data from the Agency for Regional Development of Pekalongan City (Bappeda) in 2020 that in 2019 the investment growth was Rp. 3.29 trillion, the economic growth in the industrial sector was 4.84%, and the economic growth in the trade and services sector was 5.72% [1].Meanwhile, the economic income in 2019 in the Large Trade and Retail sector contributed the largest GDP of 21.79% while the smallest sector of the Water Supply, Waste Treatment, Waste and Recycling sector was 0.10%.Based on the existing of Spatial and Regional Planning (RTRW) of Pekalongan City [2] has been compiled and drawn a map of the distribution of industrial estates, both trade and services or called agglomerations.Industrial agglomeration [3][4] [5] is the concentration of industrial activities aimed at more optimal and efficient management.The existing agglomerations include batik and textile centers located in Buaran Alit, Kradenan, Jenggot, Banyuurip Alit, Banyuurip Ageng, Medono, Kauman, Kergon, Sampangan, Poncol, Pasir Sari and Pabean; Electronic Trade Centers on Hayam Wuruk and Gajahmada street; hotels located on Gajahmada street, Dr. Cipto Mangunkusumo street; Beach and Cultural Tourism on Jetayu street, Panjang Wetan, Slamaran; Shopping Center on Nusantara Street, Urip Sumoharjo street and other centers or areas.Pekalongan City which covers an area of 45.25 km² / 4525 hectares with 4 sub-districts and 27 urban villages those are classified as a small area has limitations in choosing an ideal location, so it is very possible that there will be a centralization or concentration of industry in a certain area or in the other hand, there are several different types of centers and industries in one area because the area is very potential compared to other regions.For this reason, it is necessary to have a Geographic Information System (GIS) that is able to display the web-based agglomeration of industry and trade [6][7][8] [9] to ensure the quality and smooth flow of information about the existing of potential.Based on the existing conditions, research is needed to mitigate and find out the potential location in increasing economic activity as a step to equalize economic growth.For this reason, the research carried out using the Research and Development (R&D) method [10] [11] which is the method used to produce certain products and test the effectiveness of the product, while the system development model used is Waterfall [12].The creation and development of applications carried out with free and open-source software that provides data and information about the location and area of industry, services, and trade.
From the results of the research carried out, it can help the government in the context of making regional development policies in mitigating and managing the spatial and regional planning of Pekalongan City (RTRW) based on the Agglomeration Geographic Information System Industry so that between industry players there is no unfair competition but rather support and complement each other so as to increase the original income of the region, investment for the achievement of the welfare of society II.LITERATURE REVIEW Several studies are used as previous research that is used as a research reference.The previous researches were about the Agglomeration Geographic Information System [32][33] [34] in table 1 [13] [11], which is a method used to produce a particular product and test the effectiveness of the product as figure 2.1

Figure 2. 2 Spatial and Regional Planning (RTRW) of Pekalongan City
Planning and development are very closely related in realizing an ideal city.Regional development must be based on land needs and planned economic needs [4] [30].Globalization that is growing is one of the significant causes in influencing the development in Indonesia, both city and regency governments to carry out physical development [3].The development activities are so significant that they require the Government in Indonesia to issue policies that regulate development.
Industrial agglomeration [31] is the centralization of industrial activities aimed at more optimal and efficient management.The factors causing the occurrence of agglomeration those are a.The existence of an area or area of production growth center that is designed according to the spatial layout and function of the region.b.
Similarity of business locations based on one of the production factors.c.The existence of a similarity in the need for complete infrastructure and service facilities.d.The existence of cooperation and mutual need in producing a production.
The benefits of agglomeration in some regions produce something positive for the region and industry, including a. Reducing environmental pollution, because with such concentration it is easier to prevent it b.Facilitate supervision and monitoring by relevant institutes on industries that do not follow the rules.c.It can promote the region easily.d.It can reduce transportation costs and production costs to a minimum.
From the research conducted obtained data on the place of trade based on the type of trading facilities based on the source: https://pekalongankota.bps.go.id/ as in table 2.1:

Table 2.1 Types of Trading Facilities
There is a distribution of areas based on Regional Regulation No.30 of 2011 concerning the Regional Spatial Plan of Pekalongan City [18] as in table 2.2: For coding activities in creating a website using codeigniter framework, bootstrap, CSS to make it look attractive and responsive.
This testing phase will test the app's system before it is published.Testing on the system uses the Black Box method.This test aims to find out which systems is running according to the analysis and design at the time of the development.Testing with black Box method has the aim to test every function that runs (functional) in the software.Indicators of success for each section tested by testing each section and the functions of menus, submenus, forms and buttons on the system.System testing and success indicators are created using tables for easy reading.Testing starts from the functional needs of the system.The system functional needs testing table is shown in Table 2 There is a form for providing criticism and suggestions Available 3 There is Admin page to manage data and information Available 4 There are pages to display photo and video galleries Available 5 There is a page for changing data Available 6 There is a page that displays a visualization map of the agglomeration map of Pekalongan City

IV. RESULTS AND DISCUSSION
The design and manufacturing process of the Regional Agglomeration GIS in Pekalongan City is as follows: 1. Preparation and Application Spatial data collection is carried out using the help of the Android GPS application.The GPS application used is Polaris Navigator, which is one of the GPS applications with excellent accuracy capabilities for latitude and longitude locations besides that there are some quite interesting features.Download Polaris Navigator App And Install It.

Spatial data collection
Activate then select on the Main menu will be displayed Latitude and Longitue, the existing data is recorded written in document Excel and stored in the form of cvs as in table 2.4:

Enter data into Google Earth
Excel data that has been saved in the form of a csv file is then entered using the import command into Google Earth.Data will be displayed in the form of dots with labels 1 to 32, then using the polygon tool it is drawn by connecting one point with another.The starting point will meet the end point so that it is closed, hence the name closed polygon.Blend the appropriate colors to make them look more attractive 4. Save polygon image data in the form of KML then uploaded into cloude / hosting, then called via the program usually invocation is made via View on the Front-end if using CodeIgniter.With the command var variable-name= new google.maps.KmlLayer({ url: 'https://nama-doamain.com/file-kml.kml',map: peta }); The results of the exit are as follows

Figure 2.3 Agglomeration Area
The yellow picture shows the Hotel area which includes the Sidji Hotel, Pesona and Namira Hotel which is 4star.For shopping centers, among others, there are Matahari and Jogya.The area is a modern area in the city of Pekalongan V. CONCLUSION Summarize sentences the primary outcomes of the study in a paragraph.Explain if the claims in this section supported by the results, and if they seem reasonable.Also, describe whether the result support or contradict previous theories, and explain how the research has moved the body of scientific knowledge forward.

Table 1 .
: Related Research The Agglomeration Geographic Information System Research conducted using Research and Development (R&D)