ALARMING figures reveal nearly half of drivers are failing to signal at road junctions.
And, 60 per cent of motorists drive over some mini-roundabouts.
The new evidence from roadside counts has prompted Calderdale Council to urge extra care on the roads.
Deputy road safety officer Kate Marsh said: “I don’t believe drivers have forgotten the mantra: ‘Mirror, Signal, Manoeuvre’ but unfortunately the evidence suggests a significant number fail to do so.
“Signalling warns others of our intended actions, and it is covered under the basic rules in the Highway Code.
“Driving over rather than around mini-roundabouts often results in drivers ending up on the opposite carriageway, which puts road users in danger.
“It is vital to keep up to date with the rules of the road. The Highway Code is for life, not just for learners.”
The worst locations in the counts were at Free School Lane and Skircoat Moor Road in Halifax.
During August and September the road safety team and volunteers carried out counts in response to concerns about drivers failing to signal.
Six junctions were targeted and 3,000 vehicle movements recorded.
Failure to signal: 48 per cent, Free School Lane/Skircoat Moor Road, Halifax; 46 per cent, Cousin Lane/Ovenden Way, Ovenden; 36 per cent, Church Street/Thornhill Road, Rastrick; 27 per cent, Pellon Lane/Broad Street, Halifax; 16 per cent, Halifax Road/Commercial Street, Brighouse; 8 per cent, Calder and Hebble, Halifax.
Failing to negotiate; 61 per cent, Free School Lane/Skircoat Moor Road and Church Street/Thornhill Road; 37 per cent, Calder and Hebble; 35 per cent, Cousin Lane/Ovenden Way; 11 per cent, Halifax Road/Commercial Street. No mini-roundabout at Pellon Lane/Broad Street.