Green Wave

Green wave

A green wave or platoon effect occurs when a series of traffic lights are coordinated to allow continuous traffic flow over several intersections in one main direction.

The Green Wave

The Green Wave is a 2010 documentary film directed by Ali Samadi Ahadi. It covers the 2009 Iranian presidential election protests and human rights violations in Iran. The film premiered at the 2010 Filmfest Hamburg.

Wave

In mathematics and physical science, a wave is a propagating dynamic disturbance of one or more quantities. Periodic waves oscillate repeatedly about an equilibrium (resting) value at some frequency. When the entire waveform moves in one direction, it is said to be a traveling wave; by contrast, a pair of identical superimposed periodic waves traveling in opposite directions makes a standing wave. In a standing wave, the amplitude of vibration has nulls at some positions where the wave amplitude appears smaller or even zero.

Green

Green is the color between cyan and yellow on the visible spectrum. It has 295–350 different shades. It is evoked by light which has a dominant wavelength of roughly 495–570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content.

green wave

Noun

1. A purposefully designed timing of a series of traffic lights to produce a green light for cars travelling at the correct speed as they arrive at the lights.