Two vehicle-activated signs have been installed near the Broomhill end of Manchester Road to help slow traffic.
The radar speed signs are located on both sides of the road near Tapton House Road and Tapton Mount Close. The idea is that they will slow cars down by making drivers aware when they are driving at unsafe speeds.
As well as showing drivers how fast they are going, the signs also display a happy face for vehicles travelling under the speed limit and a sad face for those exceeding it. The speed limit for this stretch of road is 30mph.
Manchester Road has been affected by the roadworks in Broomhill and is currently only open for traffic coming out of town.