نتایج جستجو برای: crossing red traffic lights

تعداد نتایج: 280153  

Journal: :International Journal of Environmental Research and Public Health 2021

2013
Alex R. Wade Alex V. Benjamin

WHAT IS COLOR GOOD FOR? Although our distant ancestors probably first used color vision to find fruit in trees, it is still useful to us. Even though most of us will never have to defuse a bomb (Figure 1), colors are used to send all sorts of important messages in the modern world. Traffic lights turn from green to red to tell us to stop (Figure 2), warning lights turn orange on the car dashboa...

1998
Andrew H. S. Lai N. H. C. Yung

This paper presents a video-based system methodology for automatic red light runner detection on an image sequence. It extracts information regarding the state of the traffic light and vehicle motions without any physical or electronic connections to the traffic light control system or the buried loop detectors. The new methodology detects vehicle motions based on the virtual loop detector conc...

2012
George Siogkas Evangelos Skodras Evangelos Dermatas

This paper proposes the use of a monocular video camera for traffic lights detection, in a variety of conditions, including adverse weather and illumination. The system incorporates a color pre-processing module to enhance the discrimination of red and green regions in the image and handle the “blooming effect” that is often observed in such scenes. The fast radial symmetry transform is utilize...

Journal: :Comput. J. 2006
Yi-Sheng Huang

Statechart has been utilized as a visual formalism for themodeling of complex systems. It illuminates the features on describing properties of causality, concurrency and synchronization. This paper focuses on the use of statecharts to model an urban traffic lights control system. The applications of statecharts to eight-phase, six-phase and two-phase traffic lights are illustrated. The advantag...

Journal: :CoRR 2017
Shumeet Baluja Michele Covell Rahul Sukthankar

Real-time optimization of traffic flow addresses important practical problems: reducing a driver’s wasted time, improving citywide efficiency, reducing gas emissions and improving air quality. Much of the current research in traffic-light optimization relies on extending the capabilities of traffic lights to either communicate with each other or communicate with vehicles. However, before such c...

Journal: :BMJ 2021

From some countries, yes. As lockdown restrictions ease, the government has announced a new traffic light system for reopening international travel to and from England.1 From 17 May, travellers 12 countries deemed be of lowest risk—including Australia, Israel, Portugal—will now given green return England without needing quarantine. Most are still amber, highest risk red. The advice remains no...

2015

The motor vehicle-train accident, though infrequent, is the most severe in terms of fatalities, personal injuries, and property damage per accident of all types experienced on American highways. This type of accident, however, can be eliminated only by closing all crossings to highway traffic or by constructing grade separations for all rail-highway crossings. The delay and congestion resulting...

2012
Harpal Singh Jeet Singh Ravinder Pal Singh

Traffic lights play an imperative role in traffic management. Traffic lights play an important role in the traffic management. Existing Automatic Traffic Light Violation Detection System is based on the camera’s to detect the violator. This system has a number of limitations like blurry image due to motion , poor image resolution because the number plate is far away, poor lightening, different ...

Journal: :IET Cyper-Phys. Syst.: Theory & Appl. 2016
Zhiyi Li Dong Jin Christopher Hannon Mohammad Shahidehpour Jianhui Wang

Intelligent traffic lights are critical cyber-physical systems that help smart cities to cut road congestion and vehicle emissions. However, they also open a new frontier of cybersecurity. Security researchers have demonstrated ways to compromise the traffic lights to cause potential traffic disruption and public safety degradation. This study aims to raise the public awareness of the cybersecu...

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