Speed indicator devices

Speed indicator devices (SIDs) are traffic management tools that display the real-time speed of drivers. The SID gives a visual alert to road users of the speed limit in force on that road, promoting safer driving behaviour, increased awareness of speed limits, and enhanced road safety for all road users.

SIDs don't record vehicle identities, so the data can’t be used for prosecution.

How SIDs help make roads safer 

The main reason for deploying SIDs is to reduce speeding, enhance compliance with speed limits, and improve overall road safety. By providing immediate feedback to drivers about their speed, SIDs aim to create a safer road environment. This in turn should reduce the likelihood of collisions. 

Deploying SIDs in Barnsley will help us to deliver on the aims in our Safer Roads Strategy:

  • Our highway environment is self-explaining with appropriate (evidence led) speed limits. These reinforce appropriate road user behaviour, especially when this relates to the most vulnerable road users. 
  • Road users understand and travel at appropriate speeds with respect to road conditions and within speed limits. Where appropriate we'll work with our communities and partners to investigate, educate and reinforce appropriate road user behaviour.