Figure 3 | Scientific Reports

Figure 3

From: How congestion shapes cities: from mobility patterns to scaling

Figure 3

Variation of CO2 emissions due to transport with city size.

In blue, excess CO2 (in tons) due to congestion, as given by the Urban Mobility Report (2010) for 101 metropolitan areas in the US39. In green, we show the estimated CO2 emissions (in tons) due to transports, as given by the OECD for 268 metropolitan areas in 28 different countries (Data about the total CO2 emissions due to transportation in major metropolitan area in the OECD can be found online41). The dashed yellow lines represent the least-square fit assuming a power-law dependency with multiplicative noise, which gives respectively for the US data and for the OECD data.

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