Glamis Junction

Glamis Junction lies on the Forfar bypass where the A94 crosses the dualled A90 bypass. In some respects it is therefore an important junction, from a historical view anyway, as it is where the old main road from Perth to Aberdeen is crossed by the modern usurper. Indeed, beyond Forfar, the A90 has assumed the route of the A94 as far as Stonehaven, thus reducing the length of the A94 by around half.

The junction is also of some interest. It is a form of dumbbell, but not the normal type. With a 'normal' dumbbell layout, the connecting route passes directly from one roundabout to the next, either over or under the main route. However, at Glamis Junction, the connecting route makes a loop to the north to pass under the A90. This means that the sliproads loosely follow the old line of the A94 to meet the new dual carriageway, whilst the A94 itself undertakes a circuitous route involving a series of bends (partly facilitated by the roundabouts).

The reasons behind this are not currently clear, but a number of factors seem to be at play. It is possible that the underlying geology restricted the options on the site, the proximity of the farm in the south east corner may also have played a part. However, it also seems very likely that the vast majority of traffic was predicted to be moving between routes at the junction, rather than continuing on the A94 itself, so the sliproads were made the straight ahead route as this was considered more intuitive for drivers.

Although not signed as such, an unofficial service area has been built up just to the east of this junction, containing a typically very busy McDonald's, KFC, plus a pub serving food.

Routes

Route	To	Notes
A90	Aberdeen
A90	Edinburgh (M90), Perth, Dundee
A94	Forfar
A94	Coupar Angus