The History of VASCAR
Contact Us Today


Speeding Tickets.

Careless and Reckless Driving.

Stop Sign and Red Light Tickets.

Driving Under the Influence.

Drivers License issues.

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 its streets. VASCAR means Visual Average Speed Computer and Recorder and is used as a system to measure the speed of vehicles. It computes speed using two variables: (1) the distance travelled by the targeted vehicle; and (2) the how much time is utilized to travel that distance. Distance is measured through the patrol vehicle odometer that is directly connected to the VASCAR computer and is entered using the keyboard inside the patrol vehicle.

An electric pole, crossroad, road mark, or any two landmarks can be used as basic place of VASCAR operation; as long as it is preselected by a police officer. It is determined by the distance between landmarks that were already known or measured with the patrol vehicle odometer; the measurement covers the time it takes a target vehicle to travel between landmarks. This radar can be used effectively by either a moving or non-moving patrol vehicle. The determining factor in the distance mode moving between landmarks is the fly utilized by the operator pressing a button.

Compared with the microwave radar used in most Radar Gun of Police and their laser radar, VASCAR radar has more advantages. As radar, it must be set up closed to the road, while the VASCAR radar can either be closed to or far from the road. It only requires that operator must be able to see the vehicles passing between the landmarks. This feature makes VASCAR easier and more flexible to hide patrol vehicle and the Guns of Police Radar. What VASCAR cannot do is to send laser infrared signals or microwaves and it gives no warning even if the driver is equipped with a radar detector.

VASCAR unit has a stopwatch with a simple computer. The operator records the time that a vehicle passes two fixed objects that are a known distance apart. The average speed of the vehicle is then calculated by dividing the distance with the time. Applying the value theorem, operator will find that the average speed of the vehicle must be equal at some time between the measurements.

The advantage of VASCAR is that it can be used by either stationary or running patrol vehicle which ever direction the target vehicle is moving; whether in front, behind or the same direction as the officer. Furthermore, patrol cars have the leeway of getting near a speeding vehicle from the front, or even on the corners of highways. This technique is used to determine a vehicle’s speed from the air – in helicopters and other aerial platforms. This way, it makes conviction of drivers reliable.

National Highway Traffic Safety Administration made a study in 1992 where they found that the error of VASCAR-plus units is less than 2 mph if used correctly.

Visual Average Speed Computer and Recorder is actually like a stopwatch using a calculator. As soon as a distance is entered, the officer needs only to push a button to start then stop the stopwatch. It shows the speed calculated from the time measured and distance entered.

Inasmuch as VASCAR measurement depends on human input, to make using measurement by VASCAR as accurate as possible, the reaction time of the observer and operator must be as short as possible.

Source: Vascar Com



Source: Travel 3D Research Com




  • The advancing speed detectors 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 […]
  • 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, […]
  • Seeking donations for teeners killed in crash A Memorial Day collision between a car and a bus caused the death of three South Jersey teens. Their families are seeking the help of the community to defray funeral expenses. The three fatalities were identified as 16-years-old Teven Campbell, Absecon resident; 14-years-old Kira […]