This paper investigates the effect of a new bus route on noise complaints of residents and the influence of noise on housing price. To overcome the challenge of mapping noise data with subjective emotion, we use a novel data source—text-based noise complaint records from residents in a town in Singapore—and apply natural language processing tools to conduct sentiment analysis. To address the endogeneity concern regarding the bus route, we use a hypothetical least cost path as an instrument for the existing bus route. We find that living closer to the bus route for every 100 m increases noise complaints by around 10 percentage points, and the effect is more severe on medium floor levels (5th–8th floors) and near bus stops (within 100 m). We further link noise with housing price and discover a price reduction of 3% with a 1-scale-point increase in noise complaints. This implies that bus noise offsets 17.8% of the benefit from convenience, which sheds light on the importance of noise insulation in transit-oriented developments.

中文翻译：

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公共交通、噪音投诉和住房：来自新加坡情绪分析的证据

本文研究了新公交线路对居民噪音投诉的影响以及噪音对房价的影响。为了克服主观情感映射噪声数据的挑战，我们使用了一种新颖的数据源——来自新加坡城镇居民的基于文本的噪声投诉记录——并应用自然语言处理工具进行情感分析。为了解决关于公交路线的内生性问题，我们使用假设的最低成本路径作为现有公交路线的工具。我们发现，住在离公交路线越近每 100 m 的地方，噪音投诉会增加约 10 个百分点，并且在中等楼层（5-8 层）和靠近公交车站（100 m 内）的影响更为严重。我们进一步将噪音与房价联系起来，发现噪音投诉每增加 1 个尺度点，房价就会下降 3%。这意味着公交车噪音抵消了便利带来的 17.8% 的好处，这揭示了隔音在面向公交的发展中的重要性。