EVALUASI KINERJA LALU LINTAS PEMBANGUNAN UNDERPASS CIBITUNG KABUPATEN BEKASI DENGAN MENGGUNAKAN APLIKASI VISSIM (Kawasan Pasar Induk dan Stasiun Cibitung Kabupaten Bekasi)
DOI: 10.55511/jpsttd.v14i2.652
archive: archived pipeline: cataloged verified
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Summary
This study evaluates the traffic performance of the Cibitung Underpass construction in Bekasi Regency, Indonesia, focusing on the surrounding Main Market and Cibitung Station areas. Despite the underpass being built to alleviate congestion at the level crossing near the station, traffic conditions in the adjacent market area remain congested. The research aims to identify the causes of this persistent congestion and determine the most effective traffic engineering alternatives to reduce queue lengths and delays. The methodology employs microscopic traffic simulation using PTV VISSIM software. Primary data, including traffic volume and speed surveys conducted during peak hours on Tuesdays and Saturdays, were collected from field observations. Secondary data supplemented these findings. The simulation model was calibrated using driving behavior parameters from previous studies and validated against field data using the Geoffrey E. Havers (GEH) statistic and Mean Absolute Percentage Error (MAPE). The validation confirmed the model’s accuracy, with GEH values below 5 and MAPE values below 10% for both volume and speed metrics. Intersection optimization was calculated using the Indonesian Road Capacity Manual (MKJI). The analysis identified several causes for the existing congestion, including U-turn maneuvers by heavy vehicles blocking through traffic, excessive median openings, illegal parking, poor road conditions on Jalan Bosih Raya, and roadside loading/unloading activities. Two intervention scenarios were simulated and compared against the existing condition. The first alternative involved closing specific U-turn locations, reducing side friction, and implementing a permanent signalized intersection at the Main Market. This scenario improved average network speed by 6.47% (from 13.79 to 14.68 km/h) and reduced average delay by 5.55%. The second alternative combined the first scenario’s measures with road widening on Jalan Bosih Raya. This comprehensive approach yielded superior results, increasing average network speed by 28.97% (to 17.78 km/h), reducing travel time by 14.80%, and cutting average delay by 39.19% (from 177.90 to 108.18 seconds). The study concludes that while the underpass addresses the level crossing issue, surface-level traffic management is critical for the surrounding network. The combination of geometric improvements (road widening) and traffic engineering measures (signalization and U-turn restrictions) is significantly more effective than traffic engineering alone. The findings suggest that future interventions should also address roadside loading/unloading needs and ensure precise model calibration to reflect local vehicle characteristics.
Provenance
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | Crossref | — | — | 1 | 2026-06-20 |
| archive | success | canonical_url | — | — | 1 | 2026-06-26 |
| extract | success | cached | — | — | 2 | 2026-06-26 |
| clean | success | clean | — | — | 1 | 2026-06-20 |
| chunk | success | chunk | — | — | 1 | 2026-06-20 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-20 |
| promote | success | — | — | — | 1 | 2026-06-20 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-26 |
| tag | success | vector_similarity | — | — | 6 | 2026-06-20 |
| verify | success | — | — | — | 1 | 2026-06-26 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-26; verification: verified.
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