Road traffic

Safe following and lateral distance

Required clearance depends on speed, road condition and the ability to stop. A rear-end collision requires reconstructing braking and lane changes.

What to check in your case

Describe the original gap, what changed it and whether another vehicle cut in. For lateral clearance, record the usable road width and space available to each vehicle.

Documents for your defence

Full notice or decision, front and back, and evidence of the date of service.

  • Report and sketch showing braking and collision points

Legislation and official sources

Information checked on 7 November 2026.