Geo-Risk Calculator
Quantify the probability of catastrophic operational failure. Assess your raw hardware GPS accuracy against strict industry tolerance mandates to derive your legal risk profile.
Understanding the Safety Factor
In geodetic engineering, a safety factor (Tolerance / Equipment Accuracy) of less than 3.0 is generally considered unacceptable for professional sign-off. This is because GPS/GNSS receiver accuracy is typically stated at the 1-sigma (68%) confidence level.
To guarantee that 99.7% of all measurements stay within your contract tolerance (3-sigma confidence), your equipment must be natively capable of resolving to a dimension three times tighter than your absolute project limit. Furthermore, unmitigated Datum Shifts (such as confusing WGS84 for a local grid) bypass equipment accuracy entirely, injecting a static 1-2 meter bias that guarantees structural failure.