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All Journal Georeference: Jurnal Kajian Ilmu dan Pembelajaran Geografi
Khumairah, Mutiari
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Humanities Earth & Planetary Sciences Education Environmental Science Social Sciences

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MODELING PROJECTIONS OF THE DEPENDENCY RATIO OF THE NON-PRODUCTIVE AGE POPULATION TO THE PRODUCTIVE AGE POPULATION IN EAST JAVA PROVINCE Arini, Audi Cindra; Frizqy, Zea Zildha Nadya; Khumairah, Mutiari; Putri, Rany Riandhani
GEOREFERENCE Vol 2, No 2 (2024)
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/gr.v2i2.78610

Abstract

The understanding of demographic trends, particularly in terms of population dependency ratios, is crucial for formulating responsive and sustainable policy. This research employs a descriptive quantitative method using data from the number of inhabitants based on age in Jawa Timur from 2015 to 2022, projected to 2023 to 2030. The data analysis is performed using arithmetic and geometric methods. According to the arithmetic population projection method, the relative increase in population remains constant each year. On the other hand, the geometric method, which is the second method, assumes that population growth will increase geometrically using a compound interest formula. However, both population projection methods result in decreasing dependency ratios each year. Using the arithmetic method, the increase in the working-age population remains stable. In contrast, the geometric method indicates an increase in the working-age population each year, resulting in a higher annual growth rate. For non-productive age groups, both methods are classified as low growth rates, as the results are less than 1%. This projection provides a foundation for understanding demographic trends that are essential for policy planning and development in the future.
PERHITUNGAN LALU LINTAS HARIAN RATA-RATA PADA PERSIMPANGAN ADI SUCIPTO Hadi, Febrian; Khumairah, Mutiari; Melianti, Ikce; Widiyanti, Vina
GEOREFERENCE Vol 1, No 1 (2023)
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/gr.v1i1.64350

Abstract

Lalu lintas Harian Rata-rata adalah volume lalu lintas rata-rata dalam satu hari dari cara memperoleh data dikenal 2 jenis lalu lintas harian rata-rata, yaitu lalu lintas harian rata-rata tahunan dan lalu lintas rata-rata harian. Lalu lintas Harian Rata-rata dapat di hitung dengan cara menjumlahkan volume lalu lintas dalam satu periode tertentu yang lebih dari satu hari dan kurang dari satu tahun. Pada Persimpangan Adi Sucipto volume lalu lintas harian rata-rata dihitung dengan metode pencacahan arus lalu-lintas yang dihitung pada peak hour dengan interval waktu 15 menit. Selama pengamatan tercatat jumlah kendaraan yang melintas pada persimpangan Adi Sucipto sebanyak 28.425 kendaraan dengan jumlah lalu-lintas harian rata-rata adalah 9.475 kendaraan/jam. Persimpangan Adi Sucipto terdiri dari empat ruas jalan yang saling bertemu dan merupakan jenis simpang sebidang dengan bentuk simpang empat bersinyal. Pergerakan arus lalu lintas kendaraan pada persimpangan Adi Sucipto terdiri dari 12 arah pergerakan dengan bentuk kombinasi dari tiga pergerakan arus lalu lintas yaitu Diverging, Merging dan Crossing.
Co-Authors Arini, Audi Cindra Frizqy, Zea Zildha Nadya Hadi, Febrian Melianti, Ikce Putri, Rany Riandhani Widiyanti, Vina