@izzy@social.shadowkat.net A brief look tells that the Queensland narrow gauge decision goes to cost cutting measures in the 1890s. The Gold Coast decision seems to boil down to Bombardier having won the design contract, and they already had a standard gauge tram design with manufacturing ready to go, thus making their bid more economical (?). That last part is a little hard to nail down. So basically: moment-in-time cost decisions all around, consequences be damned.