applicable road signmeans a sign contained in the catalogue of road signs for the category of vehicle to be approved and which is applicable to at least one lane of the vehicle’s carriageway, including both non-electronic, conventional signs and variable message signs, but not including speed limit markings on road pavement;
applicable speed limitmeans the maximum permitted legal driving speed for the road travelled, as applicable for the category of vehicle that the intelligent speed assistance system is fitted to;
catalogue of road signsmeans the list of national and regional variants of road sign types and variable message sign types based upon which the intelligent speed assistance system obtains the perceived speed limit;
explicit numerical speed limit signmeans an applicable road sign which shows a temporary or permanent numerical value;
implicit speed limit signmeans an applicable road sign which does not show a numerical value (implicit non-numerical speed limit sign) or shows a strikethrough numerical value (implicit numerical speed limit sign);
national speed limitmeans the default maximum permitted legal driving speed for the road type travelled in a given Member State, unless indicated otherwise, as applicable for the category of vehicle that the intelligent speed assistance system is fitted to.
perceived speed limitmeans the applicable speed limit as obtained by the speed limit determination system;
speed control functionmeans a function that attempts to limit the speedometer speed to a stable speed at or below the perceived speed limit;
speed limit determination systemmeans the specific hardware required to obtain the speed limit through the observation of road signs and signals, based on infrastructure signals or electronic map data, or both;
speed limit information functionmeans a function that is comprised of the speed limit determination system that determines the perceived speed limit, and a human machine interface that communicates the perceived speed limit to the driver;
speed limit warning functionmeans a function that alerts the driver that the speedometer speed is exceeding the perceived speed limit;
speedometer speedmeans the driving speed of the vehicle as displayed by its on-board speedometer;
type of intelligent speed assistance systemmeans a combination of specific hardware and overall software architecture which does not differ in such essential respects as the characteristics and functionality of the speed limit determination system and its performance when operated in up-to-date condition on a public road located within the territory of the European Union;
vehicle type with regard to the intelligent speed assistance systemmeans vehicles which do not differ in such essential respects as the characteristics and functionality of the speed limit determination system and its performance when operated on a public road located within the territory of the European Union as well as the feedback system used to aid the driver in maintaining the appropriate speed for the road environment;