AI Analysis: Railway industry length of track operated at the end of the year, by company

Executive Summary

Canada's railway network shrank by 17.9% over nearly four decades, falling from a peak of 93,369 km in 1987 to 75,456 km in 2024, with the steepest low point of 61,856 km recorded in 2016. The industry is heavily concentrated among a small number of large operators — Canadian National and Canadian Pacific dominate — creating a strongly right-skewed distribution where the mean track length (11,049 km) is more than three times the median (3,566 km). A dramatic 21.4% single-year surge in 2018 (+13,208 km) stands out as the dataset's most significant anomaly, partially reversing a long-term consolidation trend.

Key Findings

• Canada's total railway track peaked at 93,369 km in 1987 and declined 34% to a low of 61,856 km in 2016, before partially recovering to 75,456 km by 2024 — a net loss of 16,479 km (-17.9%) over the full 39-year period.
• The 2018 single-year surge of +13,208 km (+21.4%) is the largest anomaly in the dataset, sharply reversing a prolonged contraction trend that had persisted through the 2000s and early 2010s.
• The mid-1990s saw back-to-back network contractions of 3.9% (-3,239 km) in 1995 and 3.6% (-2,877 km) in 1996, likely reflecting major railway restructuring or privatization activity in Canada.
• The distribution of track lengths is strongly right-skewed, with a mean of 11,049 km versus a median of 3,566 km, a standard deviation of 17,451 km exceeding the mean itself, and values ranging from 0 to 93,369 km.
• The middle 50% of company-year observations fall between approximately 497 km and 12,558 km (IQR of 12,061 km), reflecting the vast size gap between small regional operators and the dominant national carriers.
• Total track operated is strongly correlated with both owned and leased/contracted line categories, as these are its direct components, while owned and leased sub-categories each show strong internal correlations within their respective groups.
• The dataset contains 198 missing values across 1,539 total records, suggesting gaps in reporting for certain company-year combinations, particularly among smaller or regional operators.