Auralia National Motorways

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Standards

 * Controlled Access: All access onto and off the motorway is to be controlled with interchanges and grade separations (including railroad crossings). Interchanges should provide full access.
 * Minimum number of lanes: At least two lanes in each direction, and more if need for an acceptable level of service.
 * Speed limit: Minimum of 90 km/h in urban areas and 105 km/h in rural areas. Maximum limit of 130 km/h
 * Vertical clearance: Minimum vertical clearance of 5 m in rural areas and 4.5 m in urban areas.

Numbering System
The numbering scheme is derived from the scheme used for the national highways. East-west motorways are assigned even numbers and north-south motorways are assigned odd numbers.