RADAR/LIDAR speed detection course

Why are speed laws enforced?

To gain voluntary compliance and to make roads safer

Who can establish a highway work zone?

A municipal governing authority

A basic speed law refers to the policy that a violators speed was _______________________ and imprudent under the conditions that existed at the time of the violation.

Unreasonable

In code section 40-6-181, what is the established maximum speed limit for urban or residential district?

35 MPH

If a highway work zone has been established, when is the area considered to be a work zone?

At all times

If the reduced speed limit in the highway work zone is at least 10 MPH less than the posted speed limit, a warning sign must be erected __________ in advance of the beginning of the speed zone.

600 feet

If a reduced speed limit is established in a highway work zone, speed limit signs must be placed no more than ____________ apart.

1 mile

Which GA code section applies to speed that are "reasonable and prudent" under the conditions at the time?

40-6-180

The prima facie speed limit is a ___________ speed limit that applies when no other limit is posted.

Default

How many points will you receive on your license when your exceeding the speed limit by 24 MPH or more but less than 34 MPH?

4 points

How many points will you receive on your license when your exceeding the speed limit by 19 MPH or more but less that 24 MPH?

3 points

How many points will you receive on your license when you commit unlawful passing of a school bus?

6 points

How many points will you receive on your license when possessing an open container of an alcoholic beverage while driving?

2 points

How many points will you receive on your license when you commit disobedience of any traffic control device or traffic officer?

3 points

How many points will you receive on your license when your exceeding the speed limit by 14 MPH or more but less that 19 MPH?

2 points

How many points will you receive on your license when committing the offense of aggressive driving?

6 points

How many points will you receive on your license when committing the offense of improper passing on a hill or curve?

4 points

Moving radar employs the ______________ to measure the patrol vehicles speed.

Doppler principal

What does RADAR stand for?

Radio Detection and Ranging

What is the correct formula for the speed of light?

Wavelength x frequency

Traffic radar determines the ____________ of a target vehicle by measuring changes in the frequency between the point that the signal leaves the antenna and returns after being reflected by an object.

Speed

The main lobe of the radar beam contains ___________ percent of the signal.

80

________________ is the distance from the beginning of the wave peak to the end of a wave valley.

Wavelength

An internal test and an ________________ test must be performed on the radar instrument.

External accuracy

What does the C stand for in the ABC's of the radar system?

Current

Which is not a part of a tracking history?

Visual estimation of target vehicle distance

What does the A stand for in the ABC's of the radar system?

Antenna

The tuning forks will be used TOGETHER in _______________ radar mode.

Moving

What does the B stand for in the ABC's of the radar system?

Box

In moving mode, the ______________ is used to determine the patrol speed.

Low Doppler

What error is caused when the radar beam is angled across the roadway rather than pointing straight down the roadway?

Cosine error

______________ is used to measure closing speed.

High frequency doppler

When the antenna is aimed across the roadway at an angle to the target vehicle, the _________ error can be observed.

Cosine

To avoid errors, it is always important to refer back to a proper _____________ history.

Tracking

What does LIDAR use to measure a target vehicles speed?

Time of flight

light is measured by _______________.

wavelength

The acronym LIDAR stands for is?

Light detection and ranging

When a laser beam strikes and object moving towards the laser, the beam returns _____________?

At the same speed

The wavelength of the laser light used on lidar speed measurements is approximately ______________.

904 nm

What conditions may affect lidar operation?

Fog, rain, smoke or airborn dust particles

The most important part of the lidar instrument is?

Lens

Will weather conditions, panning or the cosine effect affect the accuracy of the lidar instrument?

No

To properly care of the lidar instrument, it is important to refer to what?

The manufacturers guidelines

Panning, the sweep effect snd bad weather may reduce the operational range of the lidar instrument but will not affect what?

Accuracy

Honeycutt v. Commonweath established the _______________ of radar.

The ABC's

In ________________, the Connecticut Supreme Court took judicial notice of the tuning fork test.

State V. Tomanelli

Officers are prohibited from operating speed detection devises within _______ feet of a speed detection devise warning sign.

500

In which case did the New Jersey courts take judicial notice of the Doppler principal?

State V. Dantonio

State V. ______________ applied the decision in Honeycutt V. Connecticut to moving radar.

Hanson

Which of the following is required to be listed with an agency's application for a radar permit?

Streets and roads which the radar will be used on

When running radar, how far must you be when speed reduction outside of an incorporating municipality?

600 feet

When running radar, how far must your patrol vehicle be visible?

500 feet

When running radar, how far must you be from a speed detection warning sign?

500 feet

When running radar, how far must you be for speed reduction within the limits of a municipality?

300 feet

What is the maximum extent of a vibration or oscillation (the maximum peak or valley in comparison to the base line or the wave.)

Amplitude

What is the number of waves or wavelengths that pass a given point in a given time frame?

Frequency

What band radar is where the RADARS broadcast is 1.2 inches and a frequency of 10.525 gigahertz.

X band radar

What band broadcasts at a frequency of 24.150 gigahertz with a wavelength of .5 inches

K band radar

Broadcast at frequencies between 33.4 and 36 gigahertz with a wavelength approximately.375 inches.

KA band radar