Do the electronic speed signs on Manchester Road really work?

Manchester Road speed signs return
Manchester Road SIDs

Drivers on the bottom end of Manchester Road will have noticed the electronic speed indication displays (SIDs) return last month. We got in touch the council to find out what data about traffic speeds the SIDs have collected.

The speed limit for this stretch of road is 30mph. The idea is that the SIDs slow cars down by making drivers aware when they are driving at unsafe speeds.

The data below from previous periods when SIDs have been installed on Manchester Road shows a reduction in average speed when they are present:

Period Average vehicle speed into town Average vehicle speed away from town
No SIDs on site 34mph 31mph
February 2011 31mph 29mph
July 2010 31mph 27mph

The SIDs on Manchester Road will be there for an eight-week period before they are rotated to another site by the Central Community Assembly.

Electronic speed signs return to Manchester Road

Last week the speed indication displays returned to Manchester Road.

As well as showing drivers how fast they are going, the signs display a happy face for vehicles travelling under the speed limit and a sad face for those exceeding it.

The idea is that they slow cars down by making drivers aware when they are driving at unsafe speeds. The speed limit for this stretch of road is 30mph.

Speed indication displays were installed in a similar locations on Manchester Road in July 2010 and January 2011.

Background information about Manchester Road speed signs

Manchester Road speed signs return
The electronic speed signs on Manchester Road have returned

Manchester Road electronic speed signs return

This week the speed indication displays returned to Manchester Road.

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 idea is that they slow cars down by making drivers aware when they are driving at unsafe speeds. The speed limit for this stretch of road is 30mph.

Two speed indication displays were installed in a similar location last summer for a few weeks. We’ll report back anything we hear about the data collected.

Background information about Manchester Road speed signs

Manchester Road speed signs return
The electronic speed signs on Manchester Road have returned