The 85th percentile-basic speed law -absolute speed lawBasic Speed Law (Section 316.183, F.S.)Absolute Speed
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Law
Section 316.187, F.S.
Section 316.189, F.S.
Section 316.1895, F.S.
1. saves lives 2. prevents injuries 3. reduces crashes
-steel measuring tape -survey equipment -lasers
Parallax
RADAR
Signal Speed
Frequency
-reflected -refracted -absorbed
Reflected
Refracted
Absorbed
-shape -size -composition
Stationary angular (cosine) effect
-scanning effect -panning effect
Scanning effect
Panning Effect
-visual estimation -audio Doppler -target speed display
Target Speed = Closing Speed - Patrol Speed
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