<Tr> <Td> Break - of - gauge Dual gauge Conversion (list) Bogie exchange Variable gauge </Td> </Tr> <Tr> <Th> By location </Th> </Tr> <Tr> <Td> <P> North America South America Europe Australia </P> </Td> </Tr> <P> North America South America Europe Australia </P>

What is the symbol of broad gauge railway