Broxden Roundabout

Aerial view from the south

The Broxden Roundabout, junction 12 (formerly junction 11) of the M90, is the northern most motorway junction in the British Isles. Lying on the western fringe of Perth, it is one of the areas busiest and most important junctions, with large volumes of turning traffic. The A9 TOTSOs here on its journey north to Inverness and the far north of Scotland. Going south, it is signed for Stirling and Glasgow while the A93 takes the A9's old route though Perth. The M90 spur meanwhile takes traffic to Dundee, Aberdeen or Edinburgh. As the meeting place of three dual carriageways, it should be no surprise that three of the arms have three lanes to separate turning traffic. The surprise is that the M90 only has two. The third lane on the A93 is a segregated left turn filter lane onto the motorway. The roundabout itself has spiralled lane markings, giving three lanes around most of the junction.

The junction is widely considered to be a poor design for such a busy junction, and there are regular queues at peak times. It has also had problems over the years from flooding and the unusual camber of some of the approaches and exits has caused problems for larger vehicles. Over the years, there has been a lot of discussion regarding at least partially grade separating the junction, but there is no obvious single movement which could be provided with a flyover, as turning traffic between the three dualled arms is roughly equal, with lesser volumes using the A93. As a result, the only real option is a large and expensive three-way junction between the M90 and A9, with the A93 fitted in as well as can be managed. The growth of development to the east of the junction has further limited the options, and it now seems unlikely that the junction will ever be grade separated.

Broxden services, the most northerly Motorway Services in the UK, lie immediately to the south east of the junction, accessed from the A93.

Strip Maps

• 

  The current layout of the interchange.

Routes

Route	To	Notes
M90	Aberdeen, Edinburgh, Dundee, Braemar, Blairgowrie, Cu. Angus
A9	Stirling, Glasgow
A9	Inverness, Industrial Estate, Football Stadium, Crianlarich (A85)
A93	Perth City Centre, Broxden Business Park, Broxden services

Links

• Roads.org.uk:Bad Junctions