Urban Sprawl Metrics and the Hidden Cost of Low-Density Development

城市蔓延指标与低密度开发的隐性成本

课文音频

Listen to the full story · 完整逐句/整段音频可在解锁后使用。

您仍可先看下方课文摘要；在阅读器可查看该书试读与权益说明。

从第 4 课起，导读页仅展示部分正文，便于您了解难度与风格。

Per capita road lane-kilometers in U.S. metropolitan areas increased 28% between 1990 and 2020, while public transit ridership declined 19%—revealing infrastructure lock-in dynamics.
Life-cycle cost analyses show low-density housing generates 42% higher municipal service delivery expenses per household—primarily from extended water mains, sewer lines, and street lighting networks.

Unlock full vocabulary & bilingual guide · 完整课文、逐句音频与全部译文请在解锁学习权益后于阅读器中查看。

解锁学习权益后，您可在导读页继续浏览全课重点词汇、参考译文与语法提示；听全文、逐句点读与查词建议在阅读器中使用。