The effectiveness of new 3D visual effect speed hump in speed reduction
DOI: 10.1051/matecconf/201825002001
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Summary
This study investigates the effectiveness of temporary 3D visual effect speed humps in reducing vehicle speeds at priority intersections. Motivated by high accident rates associated with driver negligence and excessive speed at junctions, the research aims to determine if optical illusions mimicking physical traffic calming measures can improve compliance with speed limits and stop/giveway rules. The study focuses on residential areas in Batu Pahat, Malaysia, where intersections serve as shortcuts and present potential safety hazards due to traffic conflicts. The experimental design involved three residential intersections: Jalan Murni (Taman Murni), Jalan Raja Udang (Kampung Merdeka), and Jalan Bintang 8 (Taman Koperasi Bahagia). Jalan Murni served as a control location due to existing physical speed humps, while the other two sites received temporary 3D visual speed hump stickers measuring 3.5m by 0.6m. Data collection occurred over three days, from 9:00 am to 12:00 pm, capturing 1,500 vehicle samples per location. Speeds were measured using laser guns for motorcycles, cars, and vans/light trucks. Statistical analysis, including Chi-Square tests via SPSS, compared speed data and compliance rates before and after the installation of the visual humps. The results demonstrated a statistically significant reduction in vehicle speeds and an increase in compliance. At Jalan Raja Udang, the 85th percentile speed dropped from 45 km/h to 34 km/h, and maximum motorcycle speeds decreased from 60 km/h to 42 km/h. Similarly, at Jalan Bintang 8, the 85th percentile speed reduced from 34.5 km/h to 32 km/h. Compliance with speed limits improved dramatically; before installation, 73.4% of vehicles exceeded the limit, whereas after installation, only 26.6% did so (χ² = 291.575, p < 0.05). Additionally, the frequency of vehicles failing to stop at intersections decreased significantly. For instance, at Jalan Raja Udang, non-stopping motorcycles dropped from 58 to 36 instances. Chi-Square analysis also indicated that motorcycles and cars had higher non-compliance rates compared to vans, likely due to vehicle size and engine capacity differences. The study concludes that 3D visual effect speed humps are an effective, non-physical traffic calming measure. By creating a perception of a physical barrier, these visual cues induce drivers to brake and reduce speed, thereby enhancing intersection safety. The findings suggest that such optical interventions can successfully mitigate speeding and improve adherence to traffic rules without the need for permanent infrastructure changes, offering a viable strategy for improving road safety in residential areas.
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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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