Division 1.3 Secondary (emergency) braking performance and efficiency (if met by separate system)X1
United Kingdom
| 1.3.1. Performance | If the secondary braking system is separate from the service braking system, use the method specified in 1.2.1. | (a) Inadequate braking effort on one or more wheels. | X | ||
| No braking effort on one or more wheels. | X | ||||
| (b) Braking effort from any wheel is less than 70 % of the maximum effort recorded from another wheel on the same axle specified. Or, in the case of testing on the road, the vehicle deviates excessively from a straight line. | X | ||||
| Braking effort from any wheel is less than 50 % of the maximum effort recorded from the other wheel on the same axle in the case of steered axles. | X | ||||
| (c) No gradual variation in brake effort (grabbing). | X | ||||
| 1.3.2. Efficiency | If the secondary braking system is separate from the service braking system, use the method specified in 1.2.2. | Braking effort less than 50 % ( 6 ) of the service brake performance defined in section 1.2.2 in relation to the maximum authorized mass. | X | ||
| Less than 50 % of the above braking effort values reached. | X |