SCG-L Practice: Domino Theory and Accident Prevention

Concept of solution and domino effect.Slightly de-focused and close-up shot. Selective focus.


Accidents caused by unsafe acts or conditions are comparable to a domino effect where a tumble in the middle causes a chain reaction that sets off a chain fall of the rest of blocksThus, the best accident prevention is to make sure no unsafe act or condition occurs in the first place.


            H.W. Heinrich’s Domino Theory for accident causation has it that accident related injury and damage are caused by unsafe acts or conditions.  Comparable to a line of five domino blocks, a tumble of the first causes the next immediate block to follow suit.  The five blocks represent different factors as follow:

1. Social environment or background;
2. Human error or defect;
3. Unsafe act andor condition;
4. Accident; and
5. Injury andor damage

To prevent accidents, we must remove unsuitable acts and conditions (Block # 3) as this is easier than enhancing the social environment or background (Block # 1) as well as human defects (Block # 2).


            Within the SCG-L’s circle, the main tool for the removal of Block # 3 is alert management, which means that all SCG-L trucks must be equipped with the GPS tracking system which connects directly with the Logistics Command Center (LCC) at Bang Sue Office which is monitored round the clock.  The accident prevention system is grogressed through VADAR:

  • Visualizing – Up-to-the-minute tracking system can be monitored by the LCC.
  • Analyzing – The system processes data to keep track of trucks violating the five types of warning regulations.
  • Detecting – LCC’s staff review the warning data.
  • Action – Actions are taken instantly.  In case an alert is given, an auto call will be made to the driver through the microphone and loudspeaker installed in the truck.
  • Report – The result after the alert is given is sent to parties concerned so that the data will be processed and feedback on alert management will be sent.

Subsequent to the alert given to the truck driver due to unsafe acts, SCG Logistics’ safety staff as well as units concerned are to take immediate actions to prevent such unsafe acts from reoccurring, e.g. enrolling the driver in an in-cab coaching course conducted by the Thaksa Phiphat School (Skill Enhancement School), a course where drivers’ behavior is strictly monitored.  Priority is also given to communication with the driver with a focus on safety rules and regulations, life-protection rules, information about safety and accident case sharing via the so-called two-way communication tool box enabling an alert to be sent to the driver and his feedback every time he is on duty.

SCG Logistics always gives priority to safety as evidenced the elevation of management standard that is expected to result in the concretely effective accident prevention.

Compiled by BLOG.SCGLogistics

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