# intersection

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## intersection

Maths
a. a point or set of points common to two or more geometric configurations
b. the set of elements that are common to two sets
c. the operation that yields that set from a pair of given sets. Symbol: ∩, as in AB

## intersection

[‚in·tər′sek·shən]
(civil engineering)
A point of junction or crossing of two or more roadways.
A surveying method in which a plane table is used alternately at each end of a measured baseline.
(mathematics)
The point, or set of points, that is common to two or more geometric configurations.
For two sets, the set consisting of all elements common to both of the sets. Also known as meet.
For two fuzzy sets A and B, the fuzzy set whose membership function has a value at any element x that is the minimum of the values of the membership functions of A and B at x.
The intersection of two Boolean matrices A and B, with the same number of rows and columns, is the Boolean matrix whose element cij in row i and column j is the intersection of corresponding elements aij in A and bij in B.

## intersection

i. A point where the centerlines of runways cross each other. See intersecting runways.
ii. A point defined by any combination of courses, radials, or bearings of two or more navigational aids.
iii. The point on the earth vertically above which the centerlines of airways cross.
iv. Used to describe the point where two runways, a runway and a taxiway, or two taxiways cross or meet.
References in periodicals archive ?
The intersection improvements also provided on-road improvements for cyclists passing through the intersection on three approaches to the intersection.
Al Tayer said: "Works completed so far included Al Khawaneej-bound Bridge at Al Rashidiya Intersection and one out of five bridges at Marrakech Intersection in the same direction.
Mattar Al Tayer, director-general and chairman of the Board of Executive Directors of RTA, announced on Saturday that 50 per cent work on the development of Al Rashidiya-Casablanca Road intersections has been completed, while the Nad Al Hamar and Marrakech Road intersections are also 40 per cent ready.
An intersection is the area, in which two or more roads or streets join or cross, as the main goal of intersection design is to facilitate the innocuous and well-organized drive of vehicles and road-users through the intersections, in highly motorised countries.
Since 2004, FHWA lias sponsored and conducted considerable research on alternative intersections and interchanges.
In addition to stress distribution, safety factor contours analyses were performed to assess stability of intersections.
According to the traffic signal's creators, since such smart intersections would minimize human error, they would be safer than intersections are now.
With the new intersection, Ashghal has succeeded in opening three intersections with electric signals on Salwa Road- Ain Khalid, Al Bustan and the Central Market intersections.
1, the question that the functor [OMEGA] preserves finite intersections of subspaces can be considered to give conditions for a topological space X for which
A survey earlier this year indicated that these were the intersections with the most red-light violations, officials said.
The Public Works Authority Ashghal said the Lejbailat intersection is the latest of a list of roundabouts that have been converted to signalised intersections.
Consequently, FHWA released Alternative Intersections/Interchanges: Information Report (AIIR) (FHWA-HRT-09-060), which highlights four alternative intersection designs and two interchange designs that offer substantial advantages over conventional at-grade intersections and grade-separated diamond interchanges.

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