By August 9, 2019 FrontPageMain

Residents may have noticed that, recently, Speed Indicator Devices (SIDs) are being used across the Parish. These devices deliver a clear message to approaching drivers, displaying their speed as a means to actively encourage safer driving and, as a recognisable piece of road equipment, they provide interactive feedback to drivers. Collecting, digitally storing and reviewing a range of vehicle speed data, will help to make informed road safety decisions where speed management is revealed as a priority.

A study of five sites (albeit undertaken by Transport for London) determined that, after the initial period of operation, all drivers reduced their speeds; whether they had been driving above or within the speed limit. However, as drivers became accustomed to the presence of the SID, only those driving above the speed limit tended to reduce their speed which, of course, is what most of us want. This ‘novelty’ effect was found to last about a week and then speeds slowly increased in the second week of observation.


Therefore, the study concluded that SIDs have been found to be effective at reducing vehicle speeds on 30mph roads but only when deployed for a short time. In light of that conclusion the SIDs in the Parish will remain at each site for at least two weeks and no longer than three weeks. Please see rota below, which covers the next few  months. Further rotas will be published as and when the position of the SIDs is going to be changed.


Aug 4 – Aug 25:      Mill Road Eastbound

Aug 31 – Sept 21:   Mill Road Westbound

Sept 21 – Oct 12:    Funtington Westbound

Oct 12 – Nov 9:       Funtington Eastbound

Nov 9 – Nov 30:     West Ashling Village Hall

Nov  30 – Dec 21:  West Ashling Southbound

Dec 21 – Jan 11:     Mill Road Eastbound

Jan 11 – Feb 1:        Mill Road Westbound

Feb 1 – Feb 22:       Funtington Eastbound

Feb 22 – Mar 14:    Funtington Westbound

Mar 14 – Apr 4:      Mill Rd Eastbound

Apr 4 – Apr 25:       Mill Rd Westbound


Please note: all data collected is anonymous and not attributed to any specific vehicles/drivers.