Rail Laurentia project is the proposed broad-gauge railways for North America.
Design guidelines:
*Track gauge should be 5 ft (1,524 mm) and 5 ft 6 in (1,676 mm).
*Electrification should be 2x25kV AC overhead lines.
*Railroad ties should be concrete.
*Passenger platform height should be 5 inches (127 mm) or 8 inches (203 mm) above rail.
*Minimum platform length should be 2,000 feet (609.6 metres).
*Minimum overhead wire height should be 6.5 metres (21 ft 4 in).
*Rail profile should be 152 lb/yd or 155 lb/yd.
*Minimum passing loop length should be 1 mile (1,609 metres).
