The worst offenders on Horns Bridge roundabout are indeed those that come from the M1 in the right lane lane then cut across at the last minute to go into town. Similiar to those in the right lane at the bottom of Boythorpe Rd who want to go up Rutland Rd.
Many have nearly hit me, cos I don't hit the brakes to let them in
One solution at horns bridge would be to slow down traffic coming from the M1 by placing a 30 M.P.H. restriction at least 1/4 mile before horns bridge {with speed cameras and better directional signage} as the reason drivers change lanes is that they hit horns bridge at break neck speed and haven't read the signs properly.
CLOSE the Hasland slip road onto the 617 at Whitehouses altogether, making the approach to horns bridge from the M1 only two lanes, and re open the OLD Hasland road at Whitehouses {past the old Houldsworths depot} for traffic from Hasland with lights at the bridge end to filter onto the island, the result would be:-
Old Hasland road traffic can then safely turn either right {Clay X} or left {town} without having to "merge" with speeding traffic.
The speed cameras would ensure drivers approach horns bridge at a comfortable safe speed enabling them to read the signs.
The two lanes on the 617 approaching horns bridge would then be clearly marked thus....
1st lane {old middle lane}....... to Clay Cross, B&Q and Markham road exit {A617 lane 1} .
2nd lane {old outer lane}.........to town centre exit {A617 lane 2}, A61 Dronfield, or back to M1.
I think this system would drastically reduce lane changing.