Guidance for road authorities on Intelligent Speed Assistance (ISA)

Intelligent Speed Assistance (ISA) helps motorists not inadvertently exceed the applicable speed limit. ISA is mandatory in new vehicle models from July 2022 and on all new vehicles in Europe by mid-2024.

How can road authorities actively contribute to the implementation of ISA to maximize the return on road safety? This guideline provides concrete actions for road authorities that contribute to ISA users continuing to use the system so roads become more safe again.