Document ID: chunk:federal_register_of_legislation:F2012C00535:front:0:p4
Version: federal_register_of_legislation:F2012C00535
Segment Type: other
Provision Reference: 
Character Range: 11962–15018

- Rollover test as the basic approval method

Annex 6 - Rollover test using body sections as an equivalent approval method

Annex 7 - Quasi-static loading test of body sections as an equivalent approval method

            Appendix 1 – Determination of the vertical movement of the centre of gravity during rollover

         Annex 8 - Quasi-static calculation based on testing of components as an equivalent approval   method

          Appendix 1 – Characteristics of plastic hinges

         Annex 9 - Computer simulation of rollover test on complete vehicle as an equivalent approval       method

       1. SCOPE

       1.1 This Regulation applies to single-deck rigid or articulated vehicles belonging to categories M2 or M3, Classes II or III or class B having more than 16 passengers [1]/.

       1.2 At the request of the manufacturer, this Regulation may also apply to any other M2 or M3 vehicle that is not included in paragraph 1.1.

       2.                                 TERMS AND DEFINITIONS

       For the purposes of this Regulation, the following terms and definitions are used:

       2.1. Units of measurement

       The units of measurement shall be:

       Dimensions and linear distances metres (m) or millimetres (mm)
       Mass or load  kilograms (kg)
       Force (and weight) Newtons (N)
       Moment Newton-metres (Nm)
       Energy  Joules (J)
       Gravitational constant 9.81 ( m/s2)

       2.2. "Vehicle" means a bus or coach designed and equipped for transportation of passengers.  The vehicle is an individual representative of a vehicle type.

       2.3. "Vehicle type" means a category of vehicles produced with the same design technical specification, main dimensions and constructional arrangement.  The vehicle type shall be defined by the vehicle manufacturer.

       2.4. "Group of vehicle types" means those vehicle types, proposed in future as well as existing now, which are covered by the approval of the worst case, in respect of this Regulation.

       2.5 "Double deck vehicle" means a vehicle where the provided spaces for passengers are arranged, at least in one part, in two superimposed levels and spaces for standing passengers are not provided in the upper deck.

       2.6. "Worst case" means the vehicle type, among a group of vehicle types, least likely to withstand the requirements of this Regulation in respect of the strength of superstructure.  The three parameters which define the worst case are: structural strength, reference energy and the residual space.

       2.7. "Approval of a vehicle type" means the whole official process in which the vehicle type is checked and tested to prove that it meets all the requirements specified in this Regulation.

       2.8 "Extension of approval" means the official process in which a modified vehicle type is approved on the basis of an earlier approved vehicle type, by comparison of structure, potential energy and residual space criteria.

       2.9. "Articulated vehicle" means a vehicle which consists of two or more rigid