Email this article APLIKASI PENUGASAN TRAFIK DINAMIK MELALUI SIMULASI MIKROSKOPIK DALAM KAJIAN IMPAK TRAFIK DAN PERBANDINGAN DENGAN PENUGASAN TRAFIK STATIK
Abstract
Kajian impak trafik membantu pembuat keputusan menilai kesesuaian cadangan pembangunan serta mengenal pasti penambahbaikan infrastruktur pengangkutan bagi mengekalkan kelestarian. Kajian ini membandingkan output trafik seperti kelengahan, nisbah isipadu terhadap kapasiti (v/c), dan tahap perkhidmatan (LOS) antara model penugasan trafik dinamik AIMSUN dan model statik SIDRA. Model SIDRA telah diselaraskan dengan rangkaian AIMSUN dari segi geometri, permintaan trafik, dan komposisi kenderaan bagi membolehkan perbandingan merentas platform yang sah. Output simulasi termasuk kelengahan, LOS dan nisbah v/c telah diekstrak daripada kedua-dua platform, dengan AIMSUN menyediakan hasil dalam format agregat dan siri masa. Hasil kajian menunjukkan bahawa AIMSUN, terutamanya melalui simulasi siri masa, memberikan gambaran trafik lebih realistik dengan mengenal pasti perubahan mengikut masa, tingkah laku pemandu adaptif dan corak kesesakan setempat. SIDRA pula secara konsisten melebihi anggaran kelengahan, iaitu purata 46.1% (50.6 saat) berbanding kelengahan agregat AIMSUN dan 34.2% (47.9 saat) berbanding kelengahan maksimum AIMSUN (siri masa), terutamanya di persimpangan yang sibuk. SIDRA juga melebihi anggaran nisbah v/c berbanding AIMSUN, dengan purata 62.2% (agregat) dan 56.9% (siri masa). AIMSUN turut menunjukkan keupayaan yang lebih unggul dalam mengenal pasti gangguan aliran trafik serta fenomena limpahan barisan kenderaan, sekali gus menonjolkan kelebihan model penugasan trafik dinamik dalam penilaian yang tepat dan responsif terhadap rangkaian trafik bandar yang kompleks. Penemuan ini menyokong penggunaan kaedah analisis berasaskan simulasi serta meningkatkan kredibiliti model penugasan trafik dinamik untuk ramalan trafik yang lebih tepat dan perancangan infrastruktur mampan.
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