Expressway S2 forms part of the southern section of the planned Warsaw Express Ring Road and is also the extension of the motorway A2 from the west, which will eventually link to the rest of the motorway A2 east of Warsaw. At present about one half of the road (the western section) has been built, while the other half (the eastern section) is scheduled to be completed in August, 2020. The road has been planned since the 1970s, initially as part of the motorway, however after local Warsaw residents objected to the plans of an inner-city motorway, the proposed road was downgraded to an expressway, though the actual route was not changed.Construction of the first phase of the project was divided into two sections. Work on a 3.9 km stretch between Warszawa Lotnisko junction (linking to expressway S79) and Puławska junction at the eastern end of this phase of the project began in September 2009, while construction of the other, 11.1 km long section between the western Konotopa junction (linking the motorway A2 and the western portion of the ring road, expressway S8) and Warszawa Lotnisko junction began in the Summer of 2010.Both sections were scheduled to be completed in mid 2012 in time for the Euro 2012 football championships, however this deadline was not achieved. The S2 Expressway was eventually opened in a number of stages, beginning in the west at Konotopa junction in August 2013, with further sections opening in September 2013, linking the road with expressway S79 leading to Chopin International Airport. The final part of this phase of the project up to Puławska junction was opened in late September 2013.The second phase of the project will take the expressway S2 east of Puławska across the Vistula river, through the new bridge, connecting the route with the eastern part of the Warsaw Express Ring Road and the continuation of the motorway A2 eastwards. The design-and-build tender for this section (divided into 3 separate contracts) was announced on December 18, 2013, with completion date specified as 41 months from the date contract is signed (not counting 3 winter months). The contract was signed in December, 2015, with completion planned for August, 2020.The contracts are:Contract A (4.6 km) including tunnel under Ursynów : Astaldi S.p.A., price about 1 222 mln zł.Contract B (6.45 km) including bridge over Vistula river: Gulermak Agir Sanayi Inssat ve Taahhut A.S. and PBDiM Mińsk Maz. , price about 757.6 mln zł.Contract C (7.45 km) including overpasses in Masovian Landscape Park: Warbud S.A. price about 561.7 mln zł.Oversight: Egis Polska Inżynieria Sp. z o.o., price about 53.4 mln zł.
Expressway S2 forms part of the southern section of the planned Warsaw Express Ring Road and is also the extension of the motorway A2 from the west, which will eventually link to the rest of the motorway A2 east of Warsaw. At present about one half of the road (the western section) has been built, while the other half (the eastern section) is scheduled to be completed in August, 2020.

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context. Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations, and other aspects of logical syntax.

Expressways are the highest class of roads in the Indian road network. They are six or eight-lane controlled-access highways where entrance and exit is controlled by the use of slip roads. Currently, approximately 1,455.4 km of expressways operational in India. The National Highways Development Project by Government of India aims to expand the highway network and plans to add an additional 18,637 km (11,580 mi) of expressways by the year 2022. National Expressways Authority of India operating under the Ministry of Road Transport and Highways will be in-charge of the construction and maintenance of expressways.

In genetics, expressivity quantifies variation in a non-binary phenotype across individuals carrying a particular genotype. It is equal to the proportion of individual carriers of a genotype for a trait who show the trait to a specifiable extent (as in the "shades of blue" example below). This differs from penetrance, the term that measures how often a gene generates its associated phenotype to any extent that makes an individual carrier different from the wild type. Expressivity therefore characterizes non-binary qualitatively or quantitatively the extent of phenotypic variation within a particular genotype. With binary phenotypes (e.g., albino vs. wild type) expressivity and penetrance are the same. The term is analogous to the severity of a condition in clinical medicine.For example, the volume of blood ejected from the pumping heart with each contraction, relative to the total amount of blood contained in the heart's chamber can be quantified by echocardiography and is called the ejection fraction. If a specific genotype is associated with the development of congestive heart failure, the expressivity would be represented by the range of ejection fractions seen in patients that have that genotype. As a more qualitative example, in the hypothetical example of a "blue" gene, the gene might have an expressivity of 25% for individuals that express the "blue" gene and appear light blue, while for individuals who express the "blue" gene and appear dark blue, the expressivity might be 75%. Expressivity is measured only when there is 100% penetrance.
In genetics, expressivity quantifies variation in a non-binary phenotype across individuals carrying a particular genotype. It is equal to the proportion of individual carriers of a genotype for a trait who show the trait to a specifiable extent (as in the "shades of blue" example below). This differs from penetrance, the term that measures how often a gene generates its associated phenotype to any extent that makes an individual carrier different from the wild type.

Expressway of the Philippines is composed of 10 expressways that connects Metro Manila to the provinces in the North Luzon and South Luzon. As of now not all expressways are interconnected, with a plan in the future to connect all of the expressways to form a network.

Expresso Tiradentes is the bus rapid transit (BRT) system in São Paulo, Brazil. It is a mid-capacity transportation system that began construction in mid- 1997, under the name of Fura-Fila. During the administration of Mayor Marta Suplicy, in mid- 2001, the name was changed to Paulistão. The current goal of the system is to connect the neighborhood of Sacomã to Parque Dom Pedro II, in order to integrate with other forms of transportation for the residents of the extreme eastern part of the city, mainly Cidade Tiradentes. The stretch between Sacomã and Parque Dom Pedro II and the words Vila Prudente - Parque Dom Pedro II . On April 28, 2009, Mayor Gilberto Kassab and Governor José Serra announced an agreement to amend the project, now to be called Metrô Leve Expresso Tiradentes. The project cost is estimated at R$ 2.3 billion and is estimated to be completed (between Vila Prudente and Tiradentes ) in 2012.For almost ten years, the BRT project of São Paulo has been postponed, and as a result, its original design has changed so that the current Expresso Tiradentes has lost virtually all the characteristics of a true BRT. An agreement between the Mayor of São Paulo and the Governor declared that the stretch between Vila Prudente and Tiradentes would be a monorail system.