TAR Services





12 July 2021 to 23 July 2021


TAR Services is registered on the Central Supplier Database and are Tax, Vat and BEE compliant.  Supplier number:  MAAA0385407. We have an expert in Traffic Accident reconstruction (Applied mathematics and physics) and an expert mechanical analyst.  We provide expert testimony in High Courts all over South Africa and Namibia.  

TAR Services are proud to present the


Traffic Accident Reconstruction 

Level 1 Course




 Monday, 12 July 2021 to Friday, 23 July 2021.



King Price Head Office

 Menlyn Corporate Park, Block A,  Cnr Garsfontein Road & Corobay Avenue, Waterkloof Glen X11



Course duration


Courses run from Monday to Friday from 08:30 for 09:00 to no later than 16:00 daily.  Note that this is a 2 week class room lecture course.  A practical assignment (drawing of an intersection to scale) mush be completed within 2 months after completion of this course. 




Test are written daily.  A student must achieve an average of 70% or higher for the tests to pass the course and receive a certificate.  No attendance certificates are issued.  Certificates are issued by Tar Services.




Catering is not provided but King Price has a cafeteria that will be available to students.  Tea and coffee will be provided.  There will be regular breaks and provision for an hour lunch.


Course registration


Students that are interested in the above course must please complete a registration form (a separate form for each student) obtainable by emailing jjoubert@tarservices.co.za.  Completed registration forms must be emailed back to TAR Services. Invoices will be send out once 15 or more students have registered for the above course.  


Course fees


For course fees, registration forms, cv's of lecturers and previous accreditation by the University of Stellenbosch please email 

Johan Joubert at










Traffic accident reconstruction legislation.

Show that you understand the different laws   applicable regarding accident reconstruction.


Communication skills in traffic accident   reconstruction.

Demonstrate the ability to obtain statements from   witnesses and to obtain a warning statement from a suspect.


Vehicle damage analysis.


Analyze damage on a vehicle in order to determine   the principle direction of force.


Scale plan drawing.

Draw a plan of an accident scene to scale.


Safety standards.

Understand safety standards during vehicle   mechanical inspections during post-crash conditions and accident scene   evaluation.


Specific vehicle data

Record the exact recording of specific vehicle   data and specification for further identification of laboratory or standard   investigation away from the crash scene.


Tools and equipment.

Use tools and equipment during critical   measurements: Tyre tread depth, free play of steering parts. Brake   adjustment.


Forces required to operate vehicle.

Understand the forces required to operate vehicle systems.

I.e. Brakes, steering, clutch, propulsion, gears, leverage, Hydraulics,   cooling, etc.


Mechanical inspection.

Coordinate the mechanical inspection process.   Recording and safekeeping of and evidence of casualty vehicles.


Personal procedure.

Establish and set a personal procedure to follow   during accident vehicle examination. 


Systems combination and operation.

Understand the systems combination and operation   that makes up a vehicle.


Difference and operation in brake systems.

Understand truck air brake system operation and   failure profile.


Truck air brake system operation.

Understand truck air brake system operation and   failure profile.


Car and truck brakes minimum standards.

Understand and aware of car and truck brakes   minimum standards.


Vehicle controls failure patterns.

Identify vehicle controls failure patterns and   profile.


Road markings as a result of mechanical   failure. 

Identify pre-crash impact accident scene road   markings as a result of mechanical failure. 


Vehicle service and maintenance history.

Establish vehicle service and maintenance history.


Tyre minimum standards.

Identify the differences in tyre minimum   standards. Tyre ratings Load. Tyre speed ratings. Tyre manufacturing date.   Tyre failure analysis. Tyre wear patterns.


Steering geometry. 

Understand steering geometry. 


Application of bolt and nut standards.

Understand the difference and importance and   application of bolt and nut standards used on safety related components of a   vehicle.


Poor workmanship.

Identify poor workmanship as the cause of an   accident.


Basic speed calculations.

Calculate the speed of a vehicle based on the skid   marks left on the accident scene. 


Compiling a case docket from daytime accident.

Compile a complete case docket relating to a   traffic accident. Practical   assignment.


Compiling a case docket from night time accident.

Compile a complete case docket relating to a   traffic accident. Practical   assignment. 



Accident Reconstruction is the effort to determine, from whatever information is available, how the traffic accident occurred.  Describing the events of the accident, in appropriate detail, is the aim of accident reconstruction.

Driving strategy and evasive tactics may be inferred in reconstruction from descriptions of position and movement.  This is done by relating velocity and position of one vehicle or pedestrian to another, or relating velocity and position to features of the surroundings, such as view obstructions, grades, curves and traffic control devices. 

Traffic Law violations are mainly a matter of driving strategy, for example, position on the road, speed and signaling to turn or stop.  Laws specify what drivers and pedestrians must do or not do in using roads.  Therefore, when one has determined by accident reconstruction how the road was used, determining whether the use violated some law follows naturally, but is often inconclusive.  

Who was driving may also be in accident reconstruction.  Sometimes the question of which vehicle occupant was at the wheel when the accident occurred is in dispute or is not sufficiently answered by rep orts of informants.  Then an analysis of occupant injuries, positions of bodies and expected vehicle movement to its rest position can lead to useful conclusions.    

Reconstruction suggests circumstances or conditions that were contributing factors, that is, had they been different, the accident would not have occurred.

If there were no eyewitnesses of the collision, reconstruction can sometimes form useful conclusions about how the accident happened from the results of the accident, such as marks on the road and damage to vehicles. 



When two or more eyewitness informants differ greatly in reports of their observations, reconstruction can be very helpful in deciding which of their reports to believe or in some cases, whether to believe any of their reports. 

Always remember that the results of reconstruction are opinions.  Like any conclusions, they are more or less accurate and more or less credible depending on the information on which the reconstruction is based, on who does the reconstruction and on the circumstances under which they were made.  

The reconstruction report will include a listing of the data on which the conclusions were based, explaining any scientific principles involved, describing, at least in a general way, the reasoning leading from the data to the conclusions, and finally evaluating the accuracy and reliability of the conclusions expressed.  This report may include maps, drawings, computer simulations, computer animations, rendered still photographs.   

These items direct attention to the facts available and explain more fully the conclusion.  Reconstruction essentially interprets data gathered in lower levels of investigation.