ICTAAL is the technical reference document for the designing of motorways in inter-urban areas, which are divided carriageway roads with at least two lanes in the link sections, with gap-graded junctions, isolated from their surroundings.

The document indicates the general principles to be taken into account when preparing new infrastructure projects or improving the existing network and provides the basic technical rules related
to definition of geometric elements of the planned infrastructure.

For the national road network, Circular No. 2000 – 87 dated 12 December 2000 gives this document the status of National Instruction on Technical Design Requirements for Rural Motorways.

For the other road networks, Regional Authorities may use this Technical Instruction to prepare projects under their responsibility.