Langlands - Seafar Interchange

The Langlands - Seafar Interchange is a complex pair of interlinked junctions on the A8011 dual carriageway through Cumbernauld, which mirrors Muirhead - Braehead Interchange further east. The junctions opened in 1967. To simplify matters, the junction can be split into two, Seafar Roundabout to the west and Langlands Interchange to the east.

Seafar Roundabout

Seafar Roundabout is a Roundabout Interchange above the A8011. It connects three of the suburban distributor roads together, namely Seafar Road to the north, Greenfaulds Road to the south and North Carbrain Road which turns round to the north east to run parallel to the A8011. Each of these five approaches has two turning lanes, and while unlined there are two circulatory lanes. The north-east facing slips are intertwined with those of Langlands Interchange, the onslip curving around past that junction before reaching the A8011, and providing a direct link as well, while the offslip from the A8011 has a very short and wide weaving area alongside the main carriageway.

Routes

Route	To	Notes
A8011	Glasgow (M80), Kirkintilloch (B8048)
A8011	Carlisle (A73), Town Centre, Stirling (M80), South Carbrain
	Seafar
	Greenfaulds
	North Carbrain

Langlands Interchange

Langlands Interchange lies immediately to the north-east of Seafar Roundabout and is in the form of a squashed trumpet, connecting the northern end of the B8039 onto the A8011. As noted above, the loops on the northern side of the A8011 are squashed, partly to accommodate the eastbound onslip from Seafar, which has a connection across to the B8039. The two sliproads on the south side of the A8011 also curve tightly before a long section parallel to the A8011, the onslip having a short, wide weaving section with the offslip for Seafar. The B8039 to the south is dualled, and almost immediately has south facing slips connecting to North Carbrain Road, which itself links back to Seafar. A short distance further again it meets the B8054 at Janes Brae Interchange.

Routes

Route	To	Notes
A8011	Glasgow (M80)
A8011	Stirling (M80), Town Centre
B8039	Airdrie (A73), Blairlinn, Lenziemill, South Carbrain
	Seafar, North Carbrain

History

The intersection was due to be opened on 12 September 1967. Contractor was R.J.M. McLeod (Contractors) Ltd. cost £600,000. It included a short section of B8039 dual carriageway south to the future Jane's Brae Interchange.