Railways - Track Gauge

Track Gauge: The distance between two rails. - Standard Gauge: 1435mm, adopted by 60% worldwide, Korea also uses standard gauge. - Narrow Gauge: 1067mm, 9% market share, used in Japan, Taiwan, etc. 1000mm, 7% market share, Southeast Asia, South America, Africa. Narrower than standard gauge, Construction costs are lower than standard gauge, allowing for faster construction. - Broad Gauge: 1520mm, 14% market share, Russia, former Soviet regions, Mongolia. 1676mm, 10% market share, India, Pakistan. Superior in transport capacity and running stability compared to standard gauge. Japan's Shinkansen was also developed with standard gauge due to the lack of running stability in existing narrow gauges, especially at high speeds. However, the reason high-speed rail was not developed with broad gauge, which has superior high-speed running stability, is due to economic issues such as maintenance costs and construction standards. Global compatibility (60% market share) is another reason.