Combination of maximum speed and maximum cant deficiency for which the vehicle was assessed. This property was before an object skos property. The values for this property do not come from a list of predefined values. Thus, the original object property was replaced by this datatype property with range xsd:string. Deprecated because of replacement by a class and two integer properties. The reason is that the property represents two concepts: [number] km/h for maximum speed - [number] mm for maximum cant deificency.