The Ratings Explained
Frontal Offset Crash Test
Frontal offset crash test is conducted by having crash test dummies (Hybrid III 50th percentile – male) at both the driver and front passenger seats and two child dummies (P3 and P1.5) inside the Child Restraint System (CRS) in the test car that moves at 64 km/h (closing speed) when it hit a crash barrier (crushable aluminum barrier). The test results are described below:
- Adult Occupant Protection (AOP) – Driver & Front Passenger
The result from sensors installed in the dummies and at the body of the car will be analyzed and classified by human’s body region. To sum up, the worst result from each dummy (implies injury level; compared) by body region is considered and accumulated (A). The assessment on the vehicle is also carried out to consider real world situation known as “modifier” assessment (B). Any “penalty” (B) will be deducted from the previous score (A) to produce the final score (C = A – B). Out of 16 points (C), the star rating will be determined by the following scheme:
- Child Occupant Protection (COP) – 3-year-old and 18-month-old Infant
The result for child occupants will be based on the Child Restraint System (CRS) used in the test as well as the injury level read by the in-dummy sensors. The P3 and P1.5 child dummies represent 3-year-old and 18-month old infant, respectively. Thus, by the test definition, the result can be defined as “the level of protection for the child occupant by using the stated CRS model in that car with specified (available) CRS attachment method e.g. by using ISOFIX, top tether or solely seatbelt”.
The final result that is in percentage-based will be derived from the following scheme:
From September 2013, star rating is also applied in COP which previously stated only the percentage of compliance. The star rating will be determined by the following scheme:
From September 2013, side impact test (UN R95) had been introduced as a new pre-requisite in AOP for 4-Star and above (pass-fail).
ASEAN NCAP Rating Plate – Results Simplified for Public Consumption
As the result of the test is primarily for public consumption i.e. for consumers to consider the quality of safety protection offered by the car model based on NCAP assessment, they can simply refer to the star rating for Adult Occupant Protection (AOP) as well as for Child Occupant Protection (COP). Due to the above mentioned changes in the rating scheme, a new result plate is introduced effective from September 2013.