Traffic - Line Gamma 20mph Speed CushionThese quality speed cushions are modular and a great alternative to speed bumps. They can be used in a range of settings to reduce traffic speeds to around 18mph (30km h), improving overall safety, especially for pedestrians. They are ideal for installing in school zones and in supermarket car parks where there are often lots of pedestrians in the road and traffic needs to be slowed down more thoroughly. Due to the width of the speed cushion, buses,