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Use of the Critical Speed Formula
- Ground Vehicle Standard
- J2969_201701
- Issued
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Recommended Practice provides guidelines for procedures and practices used to obtain and record measurements and to analyze the results of the critical speed method. It is for use at accident sites using manual or electronic measurements. The method allows for many unique factors and the recommended procedure will permit a consistent use of the method in order to reduce errors and uncertainty in the results. The results from the critical speed formula should always, when possible, be compared to other accident reconstruction methodologies. When different accident reconstruction methods are used, the uncertainty of each method should be analyzed and presented.
Rationale
This SAE Recommended Practice was developed to provide a guideline for the recommended use of the critical speed formula. The basic procedures and techniques for data collection and use of the method shown in this document are not to be considered all inclusive.
Recommended Content
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Table 1 | Example of error associated with possible 1 inch uncertainty in measuring the middle ordinate |
Issuing Committee
Crash Data Collection and Analysis Standards Committee
To continue the work developed from previous AIRP committee and to develop new practices that cover protocols, measures, and equipment
Reference
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