The advancing speed detectors
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Speeding Tickets.

Careless and Reckless Driving.

Stop Sign and Red Light Tickets.

Driving Under the Influence.

Drivers License issues.

Saving lives and limbs is the goal of road safety. High tech has given birth to speed detectors designed to measure the speed of vehicles which is now an essential component of traffic policing.

For the present, speed detection has achieved its purpose and among its worthy advances includes: (1) radar; (2) LIDAR; (3) VASCAR; (4) aircraft; (5) Speed Camera; and (5) speed detection loop. These innovations are all under the management of the State Police Department.

The favorite speed detector of the police force is the radar. There are several types of radars depending on its purpose. One type is the stationary radar that is very effective for detecting speeding vehicles. A hidden traffic officer utilizes a radar gun to wait for speeding car to pass by. Its advantage is that the officer is able to observe the driver way before the driver is aware of the officer. A radar detector is also an electronic device used by motorists to detect if their speed is being monitored by police or law enforcement using a radar gun. Most radar detectors warn drivers to reduce speed before being ticketed for speeding. However, even if the driver tries to slow down, the vehicle speed was already reflected on the screen of the radar gun which is an evidence for the issuance of a traffic ticket.

LIDAR stands for Light Detection and Ranging that uses pulsed laser light to measure ranges or variable distances. The LIDAR detector or laser detector detects the infrared emissions coming from the law enforcement agencies’ speed detection devices. It also warns motorists that their speed is being measured. LIDAR has limitation in use as it cannot be utilized when the police cars are in motion.

VASCAR is the acronym of Visual Average Speed Computer and Reading. Compared other detection devices, VASCAR is simpler. The measurement of VASCAR depends on inputs given by its user. To make a VASCAR measurement as accurate as possible, the reaction time of the observer/operator must be as short as possible.

The aircraft or aerial speed detection is hardly used these days on account of its cost that is not keeping up with the need to economize. It operates similar to a VASCAR for the minute a speeding vehicle is observed on air; it immediately informs an officer on the road for the vehicle to pull over.

Fast-moving objects like a photographic image(s) that are stored in the medium is recorded by a device called high-speed camera. Images stored are then played back slowly. High-speed cameras, today, are entirely electronic using a charge-coupled device or a CMOS active pixel sensor. These instruments are able to record more than 1,000 frames per second into DRAM.

Three steps to use speed detection loops: (1) install by splicing into the surface of the motorway; (2) set the loop; and (3) securely reseal the road surface. Each time a vehicle runs over two loops within the area based on a predetermined distance, the time recorded is made to match by using recognized number plate and the speed calculated from this data. Speed of the vehicle is compared to the zone’s legal speed limit and transmitted to the enforcement agency with a photograph captured from a roadside camera.

Advancing technology is introducing more devices to help prevent speeding, as well as save lives.

Source: Eng Buffalo Edu

(http://wwwee.eng.buffalo.edu/faculty/cartwright/teaching/ee494s99/presentations/lasar.pdf)

Source: DUI Foundation (http://www.duifoundation.org/drunkdriving/trafficviolations/speedmeasurement/

Source: Mr. Ticket (http://www.4mrticket.com/different-methods-of-speed-detection.html)

 

 

  • The History of VASCAR Do you know that the first VASCAR device in 1966 was the brainchild of Arthur Marshall? It is utilized by police officers to enforce legal speed limits, specifically in the jurisdictions of Pennsylvania where RADAR and/or LIDAR are considered illegal, or radar detectors are banned along […]
  • Radar as speeding detector Speed detection and enforcement are designed to: (1) lower traffic accidents; (2) reduce incidence of traffic- related injuries; (3) eliminate possible deaths, road trauma & other damage to property; (4) remind drivers to comply with speed limits; (5) accomplish safe & effective […]
  • LiDAR – Light Detection and Ranging. Light Detection and Ranging stands for the acronym of LiDAR that is a speed gun utilized by law enforcement for controlling speed that uses laser to measure the speed of a vehicle. It is different from radar speed guns that rely on shifts of Doppler to determine the speed of a vehicle, […]
  • Red Light Cameras May Increase Taxes Philadelphia Traffic Lawyers agree wholeheartedly with a  recent editiorial in the Philadelphia Inquirer discussing alternatives to Red Light Ticket Cameras and how they simply do not pass a cost benefit analysis to taxpayers unless they are in an extremely high traffic areas.

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