TRAFFIC SIGNALS
Improves the conspicuity of the traffic signal head and the signal display.
What is a Backboard?
A fan-shaped field of view extending in front of a vehicle operator.
What is Cone of Vision?
The brains of the signal.
What is the Signal Controller?
Describes how intense a light source or lighted surface appears to the human eye.
What is brightness?
In the music video for "Life in the Fast Lane" by the Eagles, the traffic lights featured prominently in the opening scenes were this colour.
What is Red?
Visual representation of the electrical system for a signal.
What is a Signal Wiring Diagram?
A complete unit consisting of a lamp or lamps together with the parts designed to distribute the light, to position and protect the lamps and to connect the lamps to the power supply.
What is a Luminaire?
Receives controller outputs and converts them to signal head inputs.
What are Load Switches?
At lengthy pedestrian crossing routes, these can be incorporated to allow people to stop in a safe location.
What are Refuge Islands?
This character is Pixar's "Cars" serves as the towns traffic light and directs traffic.
Who is Sheriff?
A device used to open and close signal circuits at a repetitive rate.
What is a Flasher?
Unwanted brightness that causes discomfort or reduces visibility.
What is "glare"?
Component that monitors the signal for faults.
What are Conflict Monitors?
The period when all traffic signals at an intersection display a red signal simultaneously.
What is an All-Red Interval?
This famous pop singer sings the lyrics "Light up my life, illuminate my nights" in reference to traffic signals.
Who is Madonna?
Technology commonly used with signal design include inductive loops installed in pavement and video (camera) or microwave sensors mounted on the pole.
What is Vehicle Detection?
Provides guidelines for roadway lighting design in North America.
IESNA (Illuminating Engineering Society of North America)
Used to add additional space in the cabinet; typically for battery backup.
What is a Riser?
Spheres used in conjunction with traffic paint to produce retro reflectivity in pavement markings.
What are Glass Beads?
In the show 'Stranger Things', this character becomes fascinated with traffic lights and attempts to communicate with another dimension through them.
Who is Mike Wheeler?
Detection that assigns right of way to first responders.
What is Emergency Vehicle Preemption?
A Roadway Lighting System where there are three or more luminaires per pole and the height of the pole exceeds 20 metres.
What is a High Mast Lighting System?
Device that receives loop detector inputs and transmits them to the controller.
What is a Loop Detector Card?
On 9 December 1868, the first non-electric gas-lit traffic lights were installed outside the Houses of Parliament in this city to control traffic.
Where is London, England?
In Disney Pixar's "Up" , Carl Fredricksen uses these to lift his house into the air, causing chaos in the city and disrupting traffic signals.
What are Helium Balloons