Rail transport in Spain operates on four rail gauges and services are operated by a variety of private and public operators. The total route length in 2012 was 16,026 km (10,182 km electrified). Most railways are operated by Renfe Operadora; metre and narrow-gauge lines are operated by FEVE and other carriers in individual autonomous communities. It is proposed and planned to build or convert more lines to standard gauge, including some dual gauging of broad-gauge lines, especially where these lines link to France, including platforms to be heightened.