Concerning stability, it was clarified that stability systems through coupling do not exist per se, rather good dimensioning. NL informed that it would be sufficient if the ESC of the 2nd trailer sends a signal to the following vehicles that the brakes must apply. Some debate took place on the possible improvement on the stability of the vehicles. It was clarified that EVSC cannot avoid all roll-over situations, in particular in case of brutal actions on the steering. It was suggested that some requirements like those proposed by NL above could adequately address this problem.

Some information were given about the MVC stability systems status in the US.

A Pilot was elected for amending Annex 21 of UN R13 (EVSC): Mr Adam (Wabco). Pilot to:

• Collect data about existing systems through the world
• Prepare draft amendments to Annex 21
• Assessing driver’s acceptability to lower lateral acceleration thresholds.