If there aren't any road improvements needed, such as adding turn lanes, then a complete traffic signal system for a typical four-way intersection will cost about $250,000 to $300,000. When additional costs like control equipment, project inspection, and design are taken into account the cost edges closer to $300,000.f there aren't any road improvements needed, such as adding turn lanes, then a complete traffic signal system for a typical four-way intersection will cost about $250,000 to $300,000. When additional costs like control equipment, project inspection, and design are taken into account the cost edges closer to $300,000.
Magnification. Magnification produced by a spherical mirror gives the relative extent to which the image of an object is magnified with respect to the object size. It is expressed as the ratio of the height of the image to the height of the object. It is usually represented by the letter m. If h is the height of the object and hâ² is the height of the image, then the magnification m produced by a spherical mirror is given by. The magnification m is also related to the object distance (u) and image distance (v). It can be expressed as:
The magnification of a magnifying glass depends upon where it is placed between the user's eye and the object being viewed, and the total distance between them. The magnifying power is equivalent to angular magnification (this should not be confused with optical power, which is a different quantity).n actual use, an observer with typical eyes would obtain a magnifying power between 1 and 2, depending on where lens is held. Using this principle, a magnifying glass can also be used to focus light, such as to concentrate the sun's radiation to create a hot spot at the focus.