It is a real eye opener the way they put it.
https://ec.europa.eu/transport/road_saf ... ion_isa_enIntelligent Speed Adaptation (ISA) is an in-vehicle system that supports drivers' compliance with the speed limit. ISA is in fact a collective term for various different systems. Field trials and driving simulator studies show positive effects on speed behaviour and expect large safety effects. Some studies report negative side effects of ISA, but there is yet insufficient insight in the size of these possible negative side effects and their consequences. Around one quarter of European car drivers considers a speed-limiting device like ISA to be very useful; actual experience with ISA seems to increase acceptance.
Yeah right, so 3/4 of us absolutely HATE the idea but the 1/4 win. Democracy in action.
ISA is a collective term for various systems:
The open ISA warns the driver (visibly and/or audibly) that the speed limit is being exceeded. The driver him/herself decides whether or not to slow down. This is an informative or advisory system.
The half-open ISA increases the pressure on the accelerator pedal when the speed limit is exceeded (the 'active accelerator'). Maintaining the same speed is possible, but less comfortable because of the counter pressure.
The closed ISA limits the speed automatically if the speed limit is exceeded. It is possible to make this system mandatory or voluntary. In the latter case, drivers may choose to switch the system on or off.
To assess the political acceptance of ISA systems, the EU-funded PROSPER project performed a survey among different stakeholders (politicians, governmental institutes, research institutes, pressure groups and commercial groups) in eight EU countries. It is reported, that despite differences between countries and between different stakeholder groups, ISA is generally seen as an effective safety measure
Erm, at the time there were 28 countries in the EU. And there has not been one single shred of evidence that reducing speed, overall, has reduced deaths on the roads. In fact in certain circumstances the attempts to regulate speed on the roads and overtaking has actually increased deaths forcing the removal of these attempts.
It is quite interesting because the most advanced driving control systems currently allow you to set a fixed level of speed over the speed limit or a % value. That's OVER, not under.
I'm sure the wiring for the devices could become faulty the day after the MOT and become functional again the day after. Not my fault the technology is not robust enough...