孟加拉国道路安全审计数据集(BD-ARSA)
首个开放的孟加拉国视觉道路安全审计数据集,含21,947条图像-审计记录,覆盖全国63个地区,用于低资源环境下的道路安全审计。
基本信息
资源简介
BD-ARSA是首个开放的专家基础视觉道路安全审计数据集,由孟加拉国工程技术大学事故研究所创建。包含21,947条图像-审计记录,覆盖孟加拉国63个地区、155条道路走廊,数据形式包括专家黄金级与银级标注及街景图像。主要用于低资源环境下基于视觉的道路安全审计任务。
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使用方式
数据集说明
孟加拉国道路安全审计数据集(BD-ARSA) 对应论文数据集(arXiv 预印本)。
数据获取指引
- 打开论文页面获取作者与项目信息:https://arxiv.org/abs/2608.23563v1
- 论文 Data Availability / Code Availability 章节标注了数据实际托管位置;
- 获取到实际数据链接后,按对应平台标准方式下载。
论文摘要:Abstract:Road traffic injuries remain a major challenge in low- and middle-income countries, where proactive road safety auditing is limited by incomplete crash records, shortages of qualified auditors, and the high cost of large-scale field inspections. To address this problem, we propose Expert-Grounded Distillation (EGD), a novel artificial intelligence framework that transfers institutional road safety expertise into a compact vision-language model for scalable visual road safety auditing. The key innovation is a quantified expert-grounding stage in which the teacher vision-language model is calibrated against authoritative field audits. Large-scale annotation is permitted only after the teacher reaches substantial agreement with expert risk assessments (Cohen's kappa = 0.74). The calibrated teacher then generates structured supervision that is distilled into an 8-billion-parameter student vision-language model using Low-Rank Adaptation and a single leakage-free prompt. We also introduce Bangladesh Road Safety Audit (BD-ARSA), the first open, expert-grounded Bangladeshi visual road safety audit dataset containing 21,947 image-audit records with near-national coverage, and Expert-Grounded Road Safety Auditor (EG-ARSA), the first vision-language model developed specifically for this task. Experimental results show that grounded fine-tuning substantially improves ordinal risk assessment over the zero-shot baseline, while blind expert evaluation demonstrates that the compact student outperforms both its 31 billion-parameter teacher and Gemini-2.5-Flash. These findings d
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