The Malaysian Institute of Road Safety Research or MIROS has revealed at a press conference today the results of the outdoor crash test that was conducted last week at the Malaysian Institute of Aviation Technology (MIAT) in Dengkil.

Just to recap, the objective of the test was to ascertain the effectiveness and level of damage sustained by the energy absorbing underrun installed at the back of a commercial vehicle, to analyze the safety levels involving a child seated in a child safety seat compared to a child wearing just the rear seat belt as well as to analyze the degree and type of casualties sustained by occupants of a vehicle involved with a rear-end collision against a stationary vehicle.

A self-developed propulsion system was used to get the Alza up to speed and the impact target was a 6-tonne stationary trailer. The Alza was occupied by five crash test dummies including two Hybrid III dummies fully equipped with various sensors, one non-instrumentation Hybrid III dummy, one P3 dummy with nominal instrumentation and a child dummy which simulates a 3-month old child. From these five dummies, one was an older child dummy that was secured properly on a child seat while the 3-month old child was held by an adult dummy.

According to MIROS, one of the reason why they decided to conduct the test at 30 km/h was because the runway wasn’t long enough. The institute would be able to conduct tests at higher speeds in its facility that is being built in Malacca. This facility is scheduled to be operational by June.

Below are the findings obtained by the analysts at MIROS:

  • The underrun was able to prevent the Alza from being pinned underneath the trailer
  • There were no visible signs of injury to the properly secured child. In contrast, the 3-month baby in the hands of the adult was thrown forward hitting the back of the driver’s seat.
  • The frontal airbags on the Alza cushioned the impact to the driver and front passenger. The test revealed that the front occupants were subjected to a violent head acceleration equivalent to 50G. This is within the safe tolerance of 80G.
  • There was no variable contact recorded at the knee of the driver and front passenger.
  • There was no breakage of the Alza’s dashboard.

As mentioned earlier UNECE 58-specified underruns will be made compulsory for commercial vehicles by October this year and the enforcement will be done by the Road Transport Department (RTD). This is definitely good news as long as there is proper implementation. Continue reading to view some new videos of the crash test.

VIDEO: Underrun Crash Test #1

VIDEO: Underrun Crash Test #2