Bangkok railway track gauge map. Standard gauge (1435mm), broad gauge, narrow gauge, Iberian gauge (1668mm) and mixed-gauge rail lines on one filterable map.
Bangkok track gauge across every railway line, colour-coded by type. Standard gauge (1435mm) is used across most of Europe, China, North America and the Middle East. Broad gauge variants include Russian/CIS gauge (1520mm), Indian gauge (1676mm) and Iberian gauge (1668mm). Narrow gauge lines — typically 1000mm, 914mm, 762mm or 600mm — are common in heritage railways, mountain lines and regional rail networks across Africa and Asia. Mixed-gauge track carries two gauges simultaneously using a third rail. Gauge breaks at borders — such as between Spain and France or Ukraine and Poland — require gauge-changing axles, bogie exchange or a change of train.