How do I check the A37 Coleraine Mountain road before a winter journey?

TrafficWatchNI lists the A37 Coleraine Mountain camera, which is particularly relevant when comparing an inland road over higher ground with the A2 corridor nearby.

Look at the latest available image and any official weather or travel notices before setting off. A camera shows only part of the road and cannot verify ice conditions around every bend. If the upland route is affected, follow any signed closure rather than treating an alternate minor road suggested by satnav as automatically safe.