Title: Padi Junction
Content:  The Padi Lucas Junction is the intersection of NH 205 (Madras-Tiruvallur High Road) and Inner Ring Road in the city of Chennai and is one of the most important junctions in the city. It is located in Anna Nagar north of Koyambedu Junction. An elevated rotary has been constructed at this junction as part of the NHDP by NHAI to ease the traffic congestion. It was built at a cost of ₹ 1,300 million and was opened for traffic on 20 February 2009.
Title: Stack interchange
Content:  A directional interchange is a grade separated junction between two roads where all turns that require crossing over or under the opposite road's lanes of travel in order to complete the turn utilize ramps that make a direct or semi-direct connection. The difference between direct and semi-direct connections is how much the motorist deviates from the intended direction of travel while on the ramp; direct ramps are shorter and can handle higher traveling speeds than semi-direct.
Title: Erdington
Content:  Erdington's history is documented well through its buildings. One of the most well-known features in the area is Spaghetti Junction, situated on the southern edge of the district and on the border of Aston and Gravelly Hill. As well as being a road interchange, two railway lines, three canals, and two rivers also converge on that location. Britain's longest bridge, Bromford Viaduct starts here, carrying the M6 to Junction 5, Castle Bromwich. It has long been a historic crossing point in Birmingham, with the incorporation of Salford Bridge, which was first mentioned in a deed in 1490, although a bridge is believed to have been at this location since 1290.
Title: Spaghetti junction
Content: The interchange of I-75 and I-96 at the Ambassador Bridge border crossing. 
Title: Madhavaram Junction
Content:  A trumpet interchange is constructed to connect the Chennai Bypass with NH 5.
Title: Grade separation
Content:   In civil engineering (more specifically highway engineering), grade separation is a method of aligning a junction of two or more surface transport axes at different heights (grades) so that they will not disrupt the traffic flow on other transit routes when they cross each other. The composition of such transport axes does not have to be uniform; it can consist of a mixture of roads, footpaths, railways, canals, or airport runways. Bridges (or overpasses, also called flyovers), tunnels (or underpasses), or a combination of both can be built at a junction to achieve the needed grade separation. In North America, a grade-separated junction may be referred to as a grade separation or as an interchange – in contrast with an intersection, at-grade, a diamond crossing or a level crossing, which are not grade-separated.
Title: Diamond interchange
Content:  A split diamond interchange has its ramps "split" between two crossroads, typically with an exit ramp/entrance ramp pair serving each of the crossroads. The crossroads themselves may be one-way or two-way, and are most often connected by frontage roads, usually one-way.
Title: Spaghetti junction
Content: Light Horse Interchange, at the junction of M7 Westlink Motorway and M4 Western Motorway in Eastern Creek, Sydney. 
Title: Interchange (road)
Content:  A stack interchange is a four-way interchange whereby a semi-directional left turn and a directional right turn are both available. Usually access to both turns is provided simultaneously by a single offramp. Assuming right-handed driving, in order to cross over incoming traffic and go left, vehicles first exit onto an off-ramp from the rightmost lane. After demerging from right-turning traffic, they complete their left turn by crossing both highways on a flyover ramp or underpass. The penultimate step is a merge with the right-turn on-ramp traffic from the opposite quadrant of the interchange. Finally an onramp merges both streams of incoming traffic into the left-bound highway. As there is only one offramp and one onramp (in that respective order), stacks do not suffer from the problem of 
Title: Spaghetti junction
Content: The interchange between Waru-Juanda Toll Road, Surabaya–Gempol Toll Road, and Surabaya–Mojokerto Toll Road in border of Surabaya and Sidoarjo, East Java. 

Question: anastomosis between the epididymis and the vas deferens?
Answer: Vasoepididymostomy.