The A38(M), commonly known as the Aston Expressway, is a

motorway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms i ...

Birmingham Birmingham ( ) is a city and metropolitan borough in the metropolitan county of West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1.145 million in the city proper, 2.92 million in the West ...

, England. It is long and was opened on 24 May 1972.The Motorway Archive A38(M) – Dates
It connects the

M6 motorway The M6 motorway is the longest motorway in the United Kingdom. It is located entirely within England, running for just over from the Midlands to the border with Scotland. It begins at Junction 19 of the M1 and the western end of the A14 at t ...

Aston Aston is an area of inner Birmingham, England. Located immediately to the north-east of Central Birmingham, Aston constitutes a ward within the metropolitan authority. It is approximately 1.5 miles from Birmingham City Centre. History Aston wa ...

and

Central Birmingham Birmingham City Centre, also known as Central Birmingham and often known locally as town, is the central business district of Birmingham, England. Following the removal of the Inner Ring Road, the city centre is now defined as being the area w ...

and forms part of the much longer A38 route. It is extremely unusual as it is the only single carriageway motorway in the United Kingdom and consists of seven lanes with no central reservation, and operates a

tidal flow Tidal is the adjectival form of tide. Tidal may also refer to: * ''Tidal'' (album), a 1996 album by Fiona Apple * Tidal (king), a king involved in the Battle of the Vale of Siddim * TidalCycles, a live coding environment for music * Tidal (servic ...

system in an attempt to minimise congestion. Due to the nature of the road, the speed limit is reduced to 50 mph (80 km/h) for most of its length with a very short length of 30 mph (48 km/h), though there are no permanent

speed camera In everyday use and in kinematics, the speed (commonly referred to as ''v'') of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity. ...

s. When construction work of the motorway began in the late 1960s, many late 19th-century and early 20th-century houses in the Aston area had to be demolished to make way for the new route.

Route

The A38(M) runs from the A5127 through

Gravelly Hill Interchange The Gravelly Hill Interchange, popularly known as Spaghetti Junction, is a road junction in Birmingham, England. It is junction 6 of the M6 motorway where it meets the A38(M) Aston Expressway in the Gravelly Hill area of Birmingham. The inter ...

where the A38 joins and then shortly after traffic from the

also joins. It then enters a

section. The road is on a

viaduct A viaduct is a specific type of bridge that consists of a series of arches, piers or columns supporting a long elevated railway or road. Typically a viaduct connects two points of roughly equal elevation, allowing direct overpass across a wide v ...

as it passes through

; this section cuts through the grounds of

Aston Hall Aston Hall is a Grade I listed Jacobean house in Aston, Birmingham, England, designed by John Thorpe and built between 1618 and 1635. It is a leading example of the Jacobean prodigy house. In 1864, the house was bought by Birmingham Corpor ...

.The Motorway Archive – A38(M)
The road passes through its first junction after . It enters a cutting before reaching the second junction, where the tidal flow ends as does the motorway. The motorway is curved in Aston to avoid an

Ansells Ansells Brewery was a regional brewery founded in Aston, Birmingham, England in 1858. It merged with Taylor Walker and Ind Coope in 1961 to form Allied Breweries. The brewery remained in operation until 1981, after which production transferred ...

brewery A brewery or brewing company is a business that makes and sells beer. The place at which beer is commercially made is either called a brewery or a beerhouse, where distinct sets of brewing equipment are called plant. The commercial brewing of be ...

. The motorway was also crossed by a

vinegar Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to et ...

pipeline Pipeline may refer to: Electronics, computers and computing * Pipeline (computing), a chain of data-processing stages or a CPU optimization found on ** Instruction pipelining, a technique for implementing instruction-level parallelism within a s ...

, carrying the condiment from one part of the since-demolished

HP Sauce HP Sauce is a British brown sauce, the main ingredients of which are tomatoes and tamarind extract. It was named after London's Houses of Parliament. After making its first appearance on British dinner tables in the late 19th century, HP Sauce w ...

factory to the other.

Dartmouth Circus

The traffic island at Dartmouth Circus was built where Aston Road met with Dartmouth Street, Bracebridge Street and Allesley Street. where the White Hart public house had been sited. * A4540 Dartmouth Middleway (previously Dartmouth Street) J13 * A38(M) Aston Expressway * A38 Aston Road * A5127 Aston Road The traffic island at Dartmouth Circus preserves a re-erected

Boulton and Watt Boulton & Watt was an early British engineering and manufacturing firm in the business of designing and making marine and stationary steam engines. Founded in the English West Midlands around Birmingham in 1775 as a partnership between the Engli ...

steam engine (). The engine was built in 1817 and used in Netherton at the ironworks of

M W Grazebrook M, or m, is the thirteenth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''em'' (pronounced ), plural ''ems''. History T ...

Tidal flow

The Expressway was the first road in the United Kingdom to introduce

to allow better management of traffic. Lane use is controlled by means of electronic overhead signs, with one lane always closed to create a buffer between the two directions of travel – there is no

central reservation The median strip, central reservation, roadway median, or traffic median is the reserved area that separates opposing lanes of traffic on divided roadways such as divided highways, dual carriageways, freeways, and motorways. The term also a ...

. In the morning, four of the seven lanes are designated for use by traffic heading toward Birmingham city centre, and two lanes for traffic out of the city. In the evening rush hour, this pattern is reversed and four lanes are made available to outbound traffic and two lanes towards the city centre. At all other times, the road runs with three lanes in each direction.

Motorcycle A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance travel, commuting, cruising ...

s are banned from the red-surfaced central lane, which contains a drainage channel, regardless of how it is being used. This follows a fatal accident which occurred when one of the drainage covers dislodged.CBRD Motorway Database – A38(M)
/ref>

Junctions

References

External links