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A303 road
The A303 is a trunk road in southern England, running between Basingstoke in Hampshire and Honiton in Devon via Stonehenge. Connecting the M3 and the A30, it is part of one of the main routes from London to Devon and Cornwall. It is a primary A road throughout its length, passing through five counties.
The road has evolved from historical routes, some of which are thousands of years old, including the Harrow Way and the Fosse Way. The modern route was first laid out in the early 19th century as the New Direct Road, a faster coaching route from London to Exeter. It was initially in demand but fell into disuse as railways became popular from the 1840s onwards. It was not thought of as a significant through route when roads were initially numbered, but was revived as a major road in 1933, eventually becoming a trunk road in 1958. Since then, the A303 has gradually been upgraded to modern standards, though there are still several unimproved parts with longstanding plans to fix them.
As a primary route to southwestern England, the A303 is frequently congested on its single carriageway sections. It passes through the Stonehenge World Heritage Site and the Blackdown Hills Area of Outstanding Natural Beauty, and attempts to upgrade the road in those areas have been controversial. In particular, the Stonehenge tunnel, which would see the A303 rerouted underground, has been proposed and delayed several times. Nevertheless, the road remains a popular alternative to motorway driving.
The A303 is about 93 miles (150 km) long. It starts at the M3 motorway south of Basingstoke at Junction 8, as a dual carriageway. It heads south-west, crossing the A34 near Bullington before passing south of Andover. The road then passes by Solstice Park and Bulford Camp before bypassing Amesbury and entering the Stonehenge World Heritage Site. The route then becomes single carriageway before passing Stonehenge itself. The presence of the road through a World Heritage Site has been controversial for decades. As part of a long-term strategy to restore a natural landscape around Stonehenge, the A344 road which once joined the A303 at Stonehenge has been removed, following the removal of other features over the last century including the Stonehenge Aerodrome which used to span the A303 around 500 metres (1,600 ft) west of the henge.
After Winterbourne Stoke the route once again becomes dual carriageway from Yarnbury Castle and across the Wylye valley, meeting the A36 at Deptford. There is then another section of single carriageway road, coming out of the valley and up to the crest of the Great Ridge, before a further section of dual down from the hill crest near Berwick St Leonard. On reaching the valley, it reverts again to single carriageway through the village of Chicklade, before following the terrain over to Mere, where it runs north of the town as another dual carriageway bypass. Continuing west, it passes south of Wincanton, then north of Sparkford before bypassing Ilchester and RNAS Yeovilton. Between Ilchester and Shores Bridge (over the River Parrett, east of South Petherton) the road follows the course of the Roman Fosse Way. At Yeovilton the road connects with the A37 which joins it until it reaches the end of the bypass. The dual carriageway ends at South Petherton. It runs north of Ilminster as a three-lane single carriageway where it meets the A358, providing access to the M5 motorway.
The A303 is of a lower standard west of Ilminster. It passes through the Blackdown Hills as a narrow road following the contours of the land, with the exception of a dual-carriageway bypass of Marsh. The road ends joining the A30 at the Devonshire Inn junction. Devon County Council has stated the road is about 60% of a modern standard, while the remainder is unimproved.
The A303 roughly parallels the West of England line, which competes for long-distance traffic. Although the A303 as a whole is designed to be part of a route from London to Exeter, a popular alternative is to take the M4 motorway to Bristol, followed by the M5. This is a high-quality motorway route throughout, but a considerably longer distance.
Parts of the A303, such as the section past Stonehenge, have been a right of way for people, wagons, and later motor vehicles for millennia. Portions of it follow the Harrow Way, an ancient trackway across Wessex that is one of Britain's oldest roads, reportedly being used as long ago as 3,000 BC. Other sections run on part of the Fosse Way, a Roman road between Exeter and Lincoln constructed around 49 AD.
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A303 road AI simulator
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A303 road
The A303 is a trunk road in southern England, running between Basingstoke in Hampshire and Honiton in Devon via Stonehenge. Connecting the M3 and the A30, it is part of one of the main routes from London to Devon and Cornwall. It is a primary A road throughout its length, passing through five counties.
The road has evolved from historical routes, some of which are thousands of years old, including the Harrow Way and the Fosse Way. The modern route was first laid out in the early 19th century as the New Direct Road, a faster coaching route from London to Exeter. It was initially in demand but fell into disuse as railways became popular from the 1840s onwards. It was not thought of as a significant through route when roads were initially numbered, but was revived as a major road in 1933, eventually becoming a trunk road in 1958. Since then, the A303 has gradually been upgraded to modern standards, though there are still several unimproved parts with longstanding plans to fix them.
As a primary route to southwestern England, the A303 is frequently congested on its single carriageway sections. It passes through the Stonehenge World Heritage Site and the Blackdown Hills Area of Outstanding Natural Beauty, and attempts to upgrade the road in those areas have been controversial. In particular, the Stonehenge tunnel, which would see the A303 rerouted underground, has been proposed and delayed several times. Nevertheless, the road remains a popular alternative to motorway driving.
The A303 is about 93 miles (150 km) long. It starts at the M3 motorway south of Basingstoke at Junction 8, as a dual carriageway. It heads south-west, crossing the A34 near Bullington before passing south of Andover. The road then passes by Solstice Park and Bulford Camp before bypassing Amesbury and entering the Stonehenge World Heritage Site. The route then becomes single carriageway before passing Stonehenge itself. The presence of the road through a World Heritage Site has been controversial for decades. As part of a long-term strategy to restore a natural landscape around Stonehenge, the A344 road which once joined the A303 at Stonehenge has been removed, following the removal of other features over the last century including the Stonehenge Aerodrome which used to span the A303 around 500 metres (1,600 ft) west of the henge.
After Winterbourne Stoke the route once again becomes dual carriageway from Yarnbury Castle and across the Wylye valley, meeting the A36 at Deptford. There is then another section of single carriageway road, coming out of the valley and up to the crest of the Great Ridge, before a further section of dual down from the hill crest near Berwick St Leonard. On reaching the valley, it reverts again to single carriageway through the village of Chicklade, before following the terrain over to Mere, where it runs north of the town as another dual carriageway bypass. Continuing west, it passes south of Wincanton, then north of Sparkford before bypassing Ilchester and RNAS Yeovilton. Between Ilchester and Shores Bridge (over the River Parrett, east of South Petherton) the road follows the course of the Roman Fosse Way. At Yeovilton the road connects with the A37 which joins it until it reaches the end of the bypass. The dual carriageway ends at South Petherton. It runs north of Ilminster as a three-lane single carriageway where it meets the A358, providing access to the M5 motorway.
The A303 is of a lower standard west of Ilminster. It passes through the Blackdown Hills as a narrow road following the contours of the land, with the exception of a dual-carriageway bypass of Marsh. The road ends joining the A30 at the Devonshire Inn junction. Devon County Council has stated the road is about 60% of a modern standard, while the remainder is unimproved.
The A303 roughly parallels the West of England line, which competes for long-distance traffic. Although the A303 as a whole is designed to be part of a route from London to Exeter, a popular alternative is to take the M4 motorway to Bristol, followed by the M5. This is a high-quality motorway route throughout, but a considerably longer distance.
Parts of the A303, such as the section past Stonehenge, have been a right of way for people, wagons, and later motor vehicles for millennia. Portions of it follow the Harrow Way, an ancient trackway across Wessex that is one of Britain's oldest roads, reportedly being used as long ago as 3,000 BC. Other sections run on part of the Fosse Way, a Roman road between Exeter and Lincoln constructed around 49 AD.
