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How Madrid built its metro cheaply (2024)
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Overview
Madrid's metro system expanded from 71 miles (114 kilometers) in 1995 to 197 miles (317 kilometers) in 2007, making it one of the fastest-growing metro systems globally. The expansion was completed at a significantly lower cost compared to similar projects in other cities.
Summary from worksinprogress.co.
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How Madrid built its metro cheaply (2024)
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Based on 5 sampled comments from this thread. Analyzed 2026-06-18.
- Praise: Madrid's approach to infrastructure, with in-house engineers overseeing projects, fosters expertise and leads to better planning and outcomes, which could serve as a model for other cities.
- Praise: The ability to execute projects efficiently in Madrid, thanks to detailed planning and oversight, highlights the importance of skilled labor in successful infrastructure development.
- Concern: High construction wages in the US compared to Madrid significantly inflate project costs, raising concerns about the sustainability of infrastructure development in cities like San Francisco.
- Concern: The reliance on external consultants in US infrastructure projects often leads to inefficiencies and increased costs, contrasting sharply with Madrid's in-house engineering model.