| Q. |
|
Who would use this type of Report? |
| A. |
|
Solicitors, Insurers, Accident
Management Companies, Fleet Operators, General Public, Police
Authority, Trading Standards Departments. |
| |
|
|
| Q. |
|
What information would the report
contain? |
| A. |
|
| The content of these reports
is dependent upon the accident circumstances but some
of the main information may be :- |
| 1. |
|
Speed from skid marks |
| 2. |
|
Distance taken to stop
from known speed |
| 3. |
|
Velocity at any given
point from during acceleration |
| 4. |
|
time taken to stop |
| 5. |
|
Projectile velocity |
| 6. |
|
Co-efficient of friction
of the road surface |
| 7. |
|
Momentum of a vehicle |
| 8. |
|
Overturning /skidding
- minimum friction value to prevent skidding and allow
overturning Example case |
|
| |
|
|
| |
|
Example case |
| |
|
A car struck a pedestrian who
was walking in the road late at night in a urban area where
the speed limit was 30 mph. The car skidded 57 feet and at
the time of investigation the car was found 60 feet further
along the road from the end of the skid marks |
|
| Explanation of Driver |
| |
I was doing about
38 - 40 mph. I saw the man in the road at the last minute.
I panicked a bit and just hit the brakes. I skidded to a
stop, then drove on a bit - I don't know why. |
| Explanation of witness |
| |
I reckon the
car was doing 60 mph at least, he must have been going fast
to need all that distance to stop (indicates the start of
skid to final resting place of car) |
| Investigation |
| |
Examination of
the skid mark indicated tyre and road grinding debris at
end of skid showing that the car stopped at this point. The
speed of the vehicle calculated from the skid marks was found
to be 37 mph. |
| Conclusion |
| |
The speed of
the car calculated from the skid marks appears to confirm
the drivers account. Whilst this does not excuse his actions
it puts the case in to perspective in view of the witness's
allegation that he was speeding. |
| |
| Q. |
How much does
this type of report cost ? |
| A. |
Please contact
Mark Willis directly on: 0151 426 6113 for further details. |
