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Home Video Surveillance: Monitoring Traffic with CCTV CamerasVideo Surveillance
Traffic cameras and CCTV cameras on public roads have become popular solutions to traffic problems in many municipal areas. City officials began installing security cameras in public areas to enforce traffic rules and monitor for accidents – sometimes using footage from CCTV cameras for accidents. Tickets for moving violations like speeding and running a red light can be dispatched from footage evidence, which makes patrolling and enforcing municipal laws much more efficient. Types of CCTV cameras used to monitor streets and traffic may vary, including: Speed Cameras – Speed cameras employ various types of technology, such as Doppler radar, to measure speed of passing cars. With Doppler radar, radio signals are directed at traffic and a change in frequency in the returned signal indicates a moving car and its speed. Speed cameras can be set to photograph any cars that are measured to be exceeding the speed limit. These cameras are installed in many places, but have been useful in heavily trafficked areas and roads with continual speeding issues. Red Light Cameras – Installed at traffic signals, red light cameras are programmed to photograph vehicles that run red lights. Red light cameras are often paired with a large flash to properly capture a car’s registration and license plate number, along with the driver’s face. While tickets issued from red light cameras are often contested due to lack of evidence, they have been effectively used to issue citations in many cities across the US and around the world. Bus Lane Cameras – In many large cities, vehicles like buses, taxis, trucks and bicycles are assigned special lanes in order to properly and safely route traffic. This is especially true with buses, which often require special lanes due to their frequent stops and passenger changes. Many cities have installed special cameras in bus lanes to prevent accidents, as reckless drivers will often ignore posted warnings and take less congested bus lanes in order to save time, resulting in frustration or accidents for bus drivers and passengers. Another popular CCTV solution for high-traffic roads like freeways and interstate is a HOV, or High Occupancy Vehicle, camera. Many states have HOV lanes which reward carpooling commuters and travelers for transporting multiple passengers. Lanes are set aside to the far left of the freeway, and during select hours (usually during morning and afternoon rush hours), only cars with multiple passengers may travel in these select lanes. Officials set up cameras to monitor cars to ensure that only the allowed cars are traveling in the HOV lanes. Tollbooth Cameras – Many states in the US have utilized toll roads as a way to pay for highway repairs and other municipal costs. Tollbooths are often staffed with attendants on major roads, but there are many booths which are unmanned. With the numbers of drivers not paying tolls on the rise, many states have begun to install cameras in tollbooths which record the front and rear of cars as they enter and exit. Drivers who do not pay tolls are issued tickets based on their plate numbers. Traffic Cameras – State Department of Transportation officials, in an effort to monitor traffic patterns, place video cameras along heavily trafficked areas on freeways and major arteries in cities. These cameras stream footage live over the internet and are used by citizens and news agencies to monitor traffic and maximize commuting time and efficiency. Video Analytics has brought many exciting possibilities for CCTV cameras in traffic. Many areas are starting to use automatic license plate recognition programs with their cameras in order to make the ticketing process with violations more efficient. These cameras are able to independently identify license plate numbers on cars which have been filmed breaking the law, whether the car is running a red light, driving in an illegal lane, or refusing to pay tolls at toll booths. This new technology has made law enforcement easy and will hopefully make the process more efficient.
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