- Fire Investigations
- Blind Spots
- Component Analysis and Failure
- Damage Consistency
- Evidence Appraisal
- Forensic Animation
- HGV Incidents
- Impact Speed
- Motorcycle Incidents
- Occupant Movement
- Pedestrian Incidents
- Reaction Times
- Seat Belts and Airbags
- Site Plans and Surveys
- Tachograph Analysis
- Visibility and Conspicuity
- Fleet Services
Likely Impact Speed
Determining a vehicle’s impact speed is an important issue in both low speed and high speed cases. Questions are asked:
- how fast was the vehicle travelling?
- how long might the driver(s) have had to react?
- what is the resultant likely level of occupant movement?
Low Speed Vehicle-Vehicle Impacts
Cases involving ‘Low Speed Impacts’ are high on the agenda of insurers and solicitors in the UK. It is believed that ‘Low Speed Impacts’ and in particular ‘whiplash’ claims arising from them are leading to significantly increased claims costs and therefore increased insurance premiums.
Whilst our expertise does not extend into that of a medical expert, we are able to assist enquiries into low speed impacts and provide expert evidence in relation to the mechanics of the accident and the likely levels of acceleration involved. Our evidence can then be considered by the Courts and Medical Experts when making a decision regarding the claim presented.
The term ‘low speed impact’ is in many ways misleading. We believe that the correct term should be ‘low speed change impacts’ as it is the speed change which is the crucial factor when considering such cases.
There is a clear and well-documented link between vehicle speed change and damage causation. Through expert appraisal of a vehicle’s damage it is possible (when the vehicle structures are considered) to assess the likely level of speed change that the vehicle experienced.
Our opinion is supported by comparing vehicle damage with our own crash test data and other international crash test databases. These can also be used to demonstrate, for example, what a 2, 5 or 7 mph speed change looks and sounds like.
High Speed Vehicle-Vehicle Impacts
Incidents involving vehicles travelling at high speed usually result in serious or fatal injury. GBB can assess the likely impact speeds of the vehicles involved using damage analysis and using momentum exchange calculations.
To assist our analysis we typically require information relating to the scene so that the point of impact and rest positions are known/estimated. Physical inspection of the involved vehicles is essential (as in low speed change incidents) for the full extent of the damage to be determined. Only then can a full damage analysis be conducted.
GBB is able to assess the likely impact speeds of:
- passenger cars
For details of our pedestrian and cyclist impact analysis, please see the pedestrian incidents page.
More details coming soon…
Low Speed Incident Typical Costs
Evidence Appraisal = £100
Desktop Report = £350 to £500
Fixed pricing scheme for data capture and investigation – see our low speed instruction form.
Low Speed Instruction Form
High Speed Serious/Fatal Typical Costs
Evidence Appraisal = £200
Desktop Report = £500+ (~contact us for a quote)
Fixed pricing scheme for data capture and reporting – see our serious/fatal instruction form.