Transportist

We compile operating track lengths for US streetcar and interurban systems from the McGraw American Street Railway Investments Directories for 1894–1926, aggregated by state and by metro area, with a national total. The United States network reaches an observed maximum of 80{,}660 km (50,120 miles) in 1918, with a logistic asymptote of 84,208 km, inflection year 1901, and R²=0.89.

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