Commentary on Sections Transport Section 8 – Railways
18.Section 8 states that the construction of a railway is a Significant Infrastructure Project when:
	the railway will start, end and remain in Wales,
	the railway will be part of a network operated by an approved operator,
	the railway will include a stretch of track that is a continuous length of more than 2 kilometres, and
	the construction of the railway is not permitted development.
19.This section also states that the alteration of a railway is a Significant Infrastructure Project when:
	the part of the railway to be altered is part of a railway that starts, ends and remains in Wales,
	the railway is part of a network operated by an approved operator,
	the alteration of the railway will include laying a stretch of track that is a continuous length of more than 2 kilometres, and
	the construction of the railway is not permitted development.
20.Permitted development is development in relation to which planning permission is granted by article 3 of the Town and Country Planning (General Permitted Development) Order 1995 (as it has effect from time to time).
21.This section does not apply to the construction or alteration of a railway to the extent that the railway forms part of a rail freight interchange (see section 9).