North America – narrow gauge maximum speeds map. Colour-coded speed limits across heritage, tourist and regional narrow gauge rail lines.
North America – maximum permitted operating speeds across the narrow gauge railway network. Narrow gauge lines typically operate at lower speeds than standard gauge equivalents — most heritage and tourist railways operate at 30–60 km/h, while modern narrow gauge regional railways can reach 100–130 km/h. Slower speeds indicate heritage or tourist operations where journey experience is the priority; higher speeds suggest functional regional or commuter narrow gauge services.
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