Search results
Results from the WOW.Com Content Network
In the city of Fort Dodge, Iowa, speed camera contractor Redspeed discovered a location where drivers of school buses, big panel trucks, and similar vehicles have been clocked speeding by the city's mobile speed camera and radar unit even though they were obeying the 25 mph speed limit. The errors were due to what was described as an ...
Gatso speed camera. Speed limits are enforced on most public roadways by authorities, with the purpose to improve driver compliance with speed limits.Methods used include roadside speed traps set up and operated by the police and automated roadside 'speed camera' systems, which may incorporate the use of an automatic number plate recognition system. [1]
[citation needed] They work by using an automatic number plate recognition (ANPR) system to record a vehicle's front number plate at each fixed camera site. As the distance is known between these sites, the average speed can be calculated by dividing this by the time taken to travel between two points. [ 5 ]
Traffic signs can be analyzed using forward-facing cameras in many modern cars, vehicles and trucks. One of the basic use cases of a traffic-sign recognition system is for speed limits. Most of the GPS data would procure speed information, but additional speed limit traffic signs can also be used to extract information and display it in the ...
Piezo-electric road strips, a known distance apart (1.53 cm from 1 - 3, 2 - 4) are set into the road in front of the camera, and the time between compressions is measured using an impededance converter and two clocks in the camera to give the resulting speed of the vehicle. The system takes a single photograph (front-facing only, two for rear ...
A woman and her work truck dangled from the Second Street Bridge in Louisville, Kentucky for 40 minutes after a car unexpectedly veered into the same lane, damaging the front of the truck.
In slow-moving traffic, or when the camera is at a lower level and the vehicle is at an angle approaching the camera, the shutter speed does not need to be so fast. Shutter speeds of 1 ⁄ 500 of a second can cope with traffic moving up to 65 km/h (40 mph) and 1 ⁄ 250 of a second up to 8 km/h (5 mph).
For premium support please call: 800-290-4726 more ways to reach us