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115-502: The Fosse Way was a Roman road built in Britain during the first and second centuries AD that linked Isca Dumnoniorum ( Exeter ) in the southwest and Lindum Colonia ( Lincoln ) to the northeast, via Lindinis ( Ilchester ), Aquae Sulis ( Bath ), Corinium ( Cirencester ), and Ratae Corieltauvorum ( Leicester ). The word Fosse is derived from the Latin fossa , meaning 'ditch'. For

230-416: A transit , a surveyor tried to achieve straightness by looking along the rods and commanding the gromatici to move them as required. Using the gromae they then laid out a grid on the plan of the road. If the surveyor could not see his desired endpoint, a signal fire would often be lit at the endpoint in order to guide the surveyor. The libratores then began their work using ploughs and, sometimes with

345-859: A Roman official to be sent, on service either civil or military, where we do not find roads. They reach the Wall in Britain ; run along the Rhine , the Danube , and the Euphrates ; and cover, as with a network, the interior provinces of the Empire. A road map of the empire reveals that it was generally laced with a dense network of prepared viae . Beyond its borders there were no paved roads; however, it can be supposed that footpaths and dirt roads allowed some transport. There were, for instance, some pre-Roman ancient trackways in Britain, such as

460-621: A Roman road did continue along the River Axe toward Axmouth and Seaton . These sections are labelled Fosse Way on Ordnance Survey maps. The crossroads in Axminster was controlled by a Roman fort at Woodbury Farm , now on the southern edge of the town. The route to the west crosses the Rivers Axe and Yarty to Kilmington , continuing on segments of the A35 and minor local lanes to Honiton. From Honiton

575-414: A broken line indicating passing zones and a solid line indicating no passing zones and solid white baseline shoulder stripes. On undivided roads with more than one lane in each direction, the center is normally marked with a double solid line. The double solid stripe denotes that it is illegal to pass on the other side of the center line. Multilane one-way carriageways use broken white lines between lanes;

690-473: A built up area is indicated by the presence of street lights; on lit dual carriageways that are not considered to be in a built-up area, the speed limit will be clarified with intermittent signs. Although in Ireland the term dual carriageway technically applies to any road with physically separated lanes, it is usually used only to refer to those route sections that do not have a motorway designation. Most often it

805-567: A central median, usually fitted with guardrails. The most heavily used expressways in Croatia is the D10 road , connecting capital Zagreb to Vrbovec and Križevci . In the United States, this type of road may be called a divided highway, boulevard, parkway, expressway, freeway, or interstate, and has a grassy median or Jersey barrier separating the traffic directions. With few exceptions, all roads in

920-462: A central reservation is known as a single carriageway regardless of how many lanes there are. Dual carriageways have improved road traffic safety over the years and over single carriageways and typically have higher speed limits as a result. In some places, express lanes and local or collector lanes are used within a local-express-lane system to provide more capacity and to smooth out traffic flows for longer-distance travel. A very early (perhaps

1035-407: A directional straightness. Many long sections are ruler-straight, but it should not be thought that all of them were. Some links in the network were as long as 55 miles (89 km). Gradients of 10%–12% are known in ordinary terrain, 15%–20% in mountainous country. The Roman emphasis on constructing straight roads often resulted in steep slopes relatively impractical for most commercial traffic; over

1150-473: A freeway from the 1950s to 1970s. Opened to traffic in 1940, the 160-mile-long (260 km) Pennsylvania Turnpike was the first rural dual carriageway built in the United States. By 1955 several states had built dual carriageway freeways and turnpikes and in 1957 the Interstate Highway System began. Completed in 1994, the major highway system links all the major cities of the United States. In

1265-463: A great public service like that of the roads. Gaius Gracchus , when Tribune of the People (123–122 BC), paved or gravelled many of the public roads and provided them with milestones and mounting-blocks for riders. Gaius Scribonius Curio , when Tribune (50 BC), sought popularity by introducing a Lex Viaria , under which he was to be chief inspector or commissioner for five years. Dio Cassius mentions that

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1380-467: A lack of funding elsewhere, partial controlled-access "expressways" and limited-mobility divided arterial roads are more common in the western provinces where there are no specially numbered systems of freeways. On some portions of Ontario 's 400-series highway network, the median may be either steel guardrail or an Ontario tall-wall barrier rather than an unpaved strip, particularly in urban areas. Some partial limited-access divided highways such as

1495-517: A layer of fine concrete, the nucleus, went onto the pavement or statumen . Into or onto the nucleus went a course of polygonal or square paving stones, called the summa crusta . The crusta was crowned for drainage. An example is found in an early basalt road by the Temple of Saturn on the Clivus Capitolinus . It had travertine paving, polygonal basalt blocks, concrete bedding (substituted for

1610-498: A median barrier preventing left turns (motorists have to use a "turnabout" overpass to access exits on the opposing direction). Speed limits in Canada are usually 80 to 90 km/h on signalized divided highways and 100 to 120 km/h on freeways. In Australia, dual carriageways are referred to in some regions as divided roads, though there is no official terminology. Each state's road agency has its own definition of what constitutes

1725-490: A narrow strip of trees down the middle. In 1907 the Long Island Motor Parkway opened, and roughly 20% of it featured a semi-dual-carriageway design. The New York City Belt Parkway system, which was built between 1907 and 1934, also pioneered the same design. However the majority of it featured concrete or brick railings as lane dividers instead of grass medians. In the year of 1924 the first Italian autostrada

1840-593: A new standard was set to designate certain high-quality routes formally as "Expressways". Many roads such as the A1 , the A14 , the A19 and the A42 are built to a high quality, with grade-separated junctions, full barriers at roadside and central reservations and, in some cases, three lanes of traffic. They may still fall short of motorway standard in terms of hard shoulders, the height of overpasses or

1955-494: A precedent for future highways. Although it, like the first autostrada , did not feature a dual-carriageway design, it inspired the mass construction of future high-speed roadways. During the 1930s, Germany, Italy, and the Soviet Union began construction of a network of dual carriageway expressways. By 1942, Germany had over 3,200 km (2,000 mi) of dual carriageway roads, Italy had nearly 1,300 km (810 mi), and

2070-513: A regulation width (see Laws and traditions above), but actual widths have been measured at between 3.6 feet (1.1 metres) and more than 23 feet (7.0 metres). Today, the concrete has worn from the spaces around the stones, giving the impression of a very bumpy road, but the original practice was to produce a surface that was no doubt much closer to being flat. Many roads were built to resist rain, freezing and flooding. They were constructed to need as little repair as possible. Roman construction took

2185-416: A result of their misjudging the speed of approaching traffic on the other carriageway when doing so. The majority of dual carriageway roads now have barriers. Some are heavy concrete obstructions which can bounce a vehicle back into the path of other traffic; others are made from steel ropes mounted on moderately weak posts, where the rope cuts into the vehicle body to slow the vehicle while keeping it against

2300-426: A road, though privately constructed, became a public road when the memory of its private constructors had perished. Siculus Flaccus describes viae vicinales as roads " de publicis quae divertunt in agros et saepe ad alteras publicas perveniunt " (which turn off the public roads into fields, and often reach to other public roads). The repairing authorities, in this case, were the magistri pagorum or magistrates of

2415-701: A short section of the A30 at Windwhistle Hill. Then it turns on to the B3167 through the hamlets of Street and Perry Street, joins the A358 , crosses the River Axe at what used to be called Stratford (now called Weycroft ), and on to Axminster . The location of the end of the Fosse Way is uncertain. There are further alignments on the A358 at Ball's Farm and Musbury south of Axminster, which imply

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2530-557: A small track (previously part of the A37 from before the by-pass opened and broken by the present-day A372 and A303), before picking up the B3151 through the town. It leaves the B3151 onto Ilchester's High Street, then follows West Street and Roman Road, a minor road that was formerly part of the A303, towards the present-day A303 west of town. The Roman road from Ilchester to Dorchester, Dorset continues on

2645-510: Is autovía (literally autoway ). All of them are government-owned and not tolled. First-generation autovías, built in the 1980s and early 1990s, were just duplications in parallel of existing roads, as shown in the photograph. Modern autovías are two carriageways built from scratch, leaving the old road they replace as an alternative route for pedestrians, bicycles and other non-motorized vehicles. Private properties may have direct access to an autovía, as well as bus stops and gas stations in

2760-399: Is national roads (roads with a route number prefix of N ; e.g. N8 ) that are built as or upgraded to dual carriageway. A number of non-national roads (for example, regional roads ) are dual carriageway, for example in urban areas near or in cities, or where the road was part of a national route. Dual carriageways of this class differ from motorways in a number of ways. The hard shoulder

2875-450: Is demarcated with a dashed yellow line (as opposed to an unbroken yellow line on motorways). The standard speed limit of 100 km/h (62 mph) for national routes usually applies (by default the limit is 80 km/h (50 mph) for non-national roads, even if dual carriageway). Local authorities have the power to apply a limit of up to 120 km/h (75 mph) as used on most motorways (The High Quality Dual Carriageway section of

2990-710: Is the county boundary between Leicestershire and Warwickshire . The Fosse Way follows the B4455 across Warwickshire, through Street Ashton, Stretton-under-Fosse , Brinklow , Bretford , Stretton-on-Dunsmore , Princethorpe and the site of a Roman town near Chesterton , until it joins the A429 near the boundary with Gloucestershire . The route then follows the A429 through Stretton-on-Fosse, Moreton-in-Marsh , Stow-on-the-Wold , Northleach and Fossebridge, to Cirencester , where it crosses Akeman Street and Ermin Way . South of Cirencester

3105-558: The A46 follows the route of the Fosse Way. The A46 deviates from Fosse Way at East Goscote , to follow the Leicester Western Bypass . The original alignment, which is still visible as an unclassified road called Fosse Way , passes through Syston , continuing as the minor road Melton Road through Thurmaston , before merging with the A607 (the old A46), continuing into the city centre on

3220-561: The Autobahn network programme but still have the blue signs (e. g. the B 59 , formerly A 540 near Grevenbroich ); and on the other hand some former non- Autobahn (yellow) motorways have been added to Autobahn budgeting but the signs have not been changed either (e. g. parts of the B 6 , now A 36 in the north of the Harz highland area in Saxony-Anhalt). Motorways that are neither in

3335-478: The Etruscans . The Viae terrenae were plain roads of leveled earth. These were mere tracks worn down by the feet of humans and animals, and possibly by wheeled carriages. The Viae glareatae were earthen roads with a gravel surface or a gravel subsurface and paving on top. Livy speaks of the censors of his time as being the first to contract for paving the streets of Rome with flint stones, for laying gravel on

3450-493: The Hanlon Parkway and Black Creek Drive have stop-controlled at-grade intersections and private entrances, but have sufficient right-of-way to convert them to full freeways with interchanges if traffic warrants. There are also RIRO expressways , such as Highway 11 and a portion of Highway 35 , which are not full freeways since they allow access to existing properties, but traffic speeds are faster than regular roads due to

3565-698: The Iron Age hill fort of Bury Camp and becomes another section of the county boundary, crossing second the South Wales railway which is the South Wales Main Line , next the site of an old chapel and spring at Fosse Lodge in Dunley, and then the M4. Thereafter it passes through The Shoe and Nettleton Shrub where remains of a posting-station have been found, and arrives at Batheaston . Thereupon it turns due west to follow

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3680-676: The Mediterranean world . This influx of road activity necessitated the construction of a dual thoroughfare as the road approached the Porta Portese , the corresponding gate in the Aurelian Walls of Rome for the Via Portuensis . One claim for the first divided highway in the United States was Savery Avenue in Carver, Massachusetts , first built in 1860, where the two roadways were separated by

3795-686: The N1 between the end of the M1 and the border with Northern Ireland and the N25/N22 Ballincollig Bypass in Cork are the only route sections with such special limits). Traffic lights and junctions are permitted at grade on dual carriageways. For older sections of dual carriageway, this has resulted in fewer flyover junctions. Newer dual carriageway sections are usually near motorway standard, with grade-separated junctions, but may not be designated as motorways due to

3910-678: The River Avon into Bath . Between Bath and Shepton Mallet the line of the Fosse Way follows parts of the A367, through Clandown , Radstock , Westfield and Stratton-on-the-Fosse . It runs across open country and farm tracks parallel to the A37 north of Shepton Mallet, near the Iron Age hill fort of Maesbury . At Beacon Hill south of Oakhill , it crossed the Roman road along the Mendip ridgeway from Old Sarum to

4025-674: The Second Legion after the conquest of the Durotriges in Dorset. The alignment leaves major roads after Petherton Bridge over the River Parrett , and follows country lanes to Over Stratton and Dinnington , where in 2002 members of the Channel 4 television programme Time Team uncovered a mosaic next to the road. The route crosses a stream called Stretford Water, climbs the ridge, and follows

4140-518: The Second Triumvirate obliged the Senators to repair the public roads at their own expense. The second category included private or country roads, originally constructed by private individuals, in whom their soil was vested and who had the power to dedicate them to the public use. Such roads benefited from a right of way in favor either of the public or of the owner of a particular estate. Under

4255-666: The Via Labicana in 421 BC; and the Via Salaria in 361 BC. In the Itinerary of Antoninus , the description of the road system is as follows: With the exception of some outlying portions, such as Britain north of the Wall, Dacia , and certain provinces east of the Euphrates, the whole Empire was penetrated by these itinera (plural of iter ). There is hardly a district to which we might expect

4370-674: The autobahn network nor in the Bundesstraße network are given black on white signs, following the same sign code as high-speed dual carriageways—this is mostly seen on urban trunk roads. Italian Highway Code ( Codice della strada ) divides dual carriageways into three different classifications: Italian type-B and type-C roads do not follow a specific numbering criterion. They may be numbered as Strade Statali (SS; "state roads"), Strade Regionali (SR; "regional roads"), Strade Provinciali (SP; "provincial roads") or Strade Comunali (SC; "municipal roads"). The Spanish word for dual carriageway

4485-415: The cantons . They could require the neighboring landowners either to furnish laborers for the general repair of the viae vicinales , or to keep in repair, at their own expense, a certain length of road passing through their respective properties. With the conquest of Italy, prepared viae were extended from Rome and its vicinity to outlying municipalities, sometimes overlying earlier roads. Building viae

4600-424: The censor who had ordered their construction or reconstruction. The same person often served afterwards as consul, but the road name is dated to his term as censor. If the road was older than the office of censor or was of unknown origin, it was named for its destination or the region through which it mainly passed. A road was renamed if the censor ordered major work on it, such as paving, repaving, or rerouting. With

4715-411: The civil engineer looked over the site of the proposed road and determined roughly where it should go, the agrimensores went to work surveying the road bed. They used two main devices, the rod and a device called a groma , which helped them obtain right angles. The gromatici , the Roman equivalent of rod men, placed rods and put down a line called the rigor . As they did not possess anything like

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4830-674: The Fosse Way follows a short section of the A433 , then goes cross country. The Fosse Way crosses the River Thames and under the first South Wales railway Golden Valley Line which was constructed via Gloucester . The road continues and later forming the county boundary between Gloucestershire and Wiltshire , across the old airfield at RAF Kemble , then becomes fragmented sections of country lanes; two sections on this stretch are byways rather than maintained roads, and at points on these routes it widens to as much as 60 feet (20 m). It passes near

4945-466: The Local Government Act 2001. Accordingly, hard shoulders are included wherever feasible to provide for the resulting pedestrian and cyclist traffic, and are present on much of the national route network. These hard shoulders may also be used as running lanes by motorised traffic under certain conditions. Until 2005, many motorways and dual carriageways in Ireland did not have crash barriers in

5060-565: The Ridgeway and the Icknield Way . The Laws of the Twelve Tables , dated to about 450 BC, required that any public road (Latin via ) be 8 Roman feet (perhaps about 2.37 m) wide where straight and twice that width where curved. These were probably the minimum widths for a via ; in the later republic, widths of around 12 Roman feet were common for public roads in rural regions, permitting

5175-537: The Soviet Union had 400 km (250 mi). What may have been the world's first long-distance intercity dual carriageway/freeway was the Queen Elizabeth Way in Southern Ontario in Canada, initially linking the large cities of Toronto and Hamilton together by 1939, with construction on this stretch of the present-day Queen Elizabeth Way beginning in 1936 as "Middle Road". It was gradually upgraded to

5290-656: The UK, although the term "dual carriageway" applies to any road with physically separated lanes, it is frequently used as a descriptive term for major routes built in this style. Such major dual carriageways usually have two lanes of traffic in each direction, with the lane nearest the centre being reserved for overtaking. Occasionally dual carriageways have only one lane in each direction, or more than two lanes each way (sometimes to permit easier overtaking of slower uphill traffic). Different speed limits apply on dual carriageway sections from those that apply on single carriageway sections of

5405-428: The barrier until it has stopped. Often on urban dual carriageways where the road has been converted from a four-lane single carriageway the central reservation will not be substantial: often just a small steel divider to save space. Turning right (that is, across the line of traffic heading in the opposite direction) is usually permitted only at specific locations. Often the driver will be required to turn left (away from

5520-455: The basis of their structure these roads have, comparable to the German autobahn , the legal foundation that no default speed limit exists (design speed 130 km/h), although the standard advisory speed limit ( German : Richtgeschwindigkeit ) still exists. Nevertheless, expressways are often given speed limit signs. Exit signs. At the moment some (blue) motorways have been taken out of

5635-454: The causeway to more than 5 feet (1.5 metres) above the marsh. In the provinces, the Romans often did not bother with a stone causeway but used log roads ( pontes longi ). The public road system of the Romans was thoroughly military in its aims and spirit. It was designed to unite and consolidate the conquests of the Roman people, whether within or without the limits of Italy proper. A legion on

5750-432: The censorial responsibility passed to the commanders of the Roman armies and later to special commissioners, and in some cases perhaps to the local magistrates. In the provinces, the consul or praetor and his legates received authority to deal directly with the contractor. The care of the streets and roads within the Roman territory was committed in the earliest times to the censors. They eventually made contracts for paving

5865-682: The central reservation, the policy being to use a wider median instead. Crash barriers are now mandatory for such routes, and wire cabling or full crash barriers (depending on whether or not the route is a motorway, and median width) have been fitted to existing routes. Between 2000 and 2010, three major types of dual carriageway were built on national road schemes in Ireland: In Germany the term Autobahnähnliche Straße (motorway-like road) refers to roads that are similar to German autobahn in grade-separation and signage. Most of them are designated as Kraftfahrstraßen (expressways), which means that

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5980-725: The charges for using the roads. Costs of services on the journey went up from there. Financing road building was a Roman government responsibility. Maintenance, however, was generally left to the province. The officials tasked with fund-raising were the curatores viarum . They had a number of methods available to them. Private citizens with an interest in the road could be asked to contribute to its repair. High officials might distribute largesse to be used for roads. Censors, who were in charge of public morals and public works, were expected to fund repairs suâ pecuniâ (with their own money). Beyond those means, taxes were required. A via connected two cities. Viae were generally centrally placed in

6095-423: The city proper) who were both part of the collegia known as the vigintisexviri (literally meaning "Twenty-Six Men"). Augustus, finding the collegia ineffective, especially the boards dealing with road maintenance, reduced the number of magistrates from 26 to 20. Augustus abolished the duoviri and later granted the position as superintendent (according to Dio Cassius) of the road system connecting Rome to

6210-412: The city wall and the first milestone beyond. In case of an emergency in the condition of a particular road, men of influence and liberality were appointed, or voluntarily acted, as curatores or temporary commissioners to superintend the work of repair. The dignity attached to such a curatorship is attested by a passage of Cicero . Among those who performed this duty in connection with particular roads

6325-487: The condition of the public highways. Their names occur frequently in the inscriptions to restorers of roads and bridges. Thus, Vespasian , Titus , Domitian , Trajan , and Septimius Severus were commemorated in this capacity at Emérita. The Itinerary of Antoninus (which was probably a work of much earlier date and republished in an improved and enlarged form under one of the Antonine emperors ) remains as standing evidence of

6440-524: The construction of sewers and removed obstructions to traffic, as the aediles did in Rome. It was in the character of an imperial curator (though probably armed with extraordinary powers) that Corbulo denounced the magistratus and mancipes of the Italian roads to Tiberius . He pursued them and their families with fines and imprisonment and was later rewarded with a consulship by Caligula , who also shared

6555-469: The countryside. The construction and care of the public roads, whether in Rome, in Italy, or in the provinces, was, at all periods of Roman history, considered to be a function of the greatest weight and importance. This is clearly shown by the fact that the censors, in some respects the most venerable of Roman magistrates, had the earliest paramount authority to construct and repair all roads and streets. Indeed all

6670-435: The dual carriageway) in order to loop around to an access road that permits crossing the major road. Roundabouts on dual carriageways are relatively common, especially in cities or where the cost of a grade-separated junction would be prohibitive. Where space is even more limited, intersections may be controlled by traffic lights. Smaller residential roads adjoining urban dual carriageways may be blocked off at one end to limit

6785-597: The entire length featured a dual-carriageway design. In the early 1930s, it was extended southward all the way to Naples and northward to Florence. Most of the original routing was destroyed by the Allies in World War II. By 1930 several US and European cities had built dual-carriageway highways, mostly to control traffic jams and/or to provide bypass routes for traffic. In 1932 the first German autobahn opened between Cologne and Bonn. It ran 21 km (13 mi) and became

6900-663: The federally funded Interstate Highway System are fully controlled access divided highways known as freeways . A broader definition, expressways , includes both freeways and partial limited-access divided highways, and "expressway" is often used specifically to refer to the latter. United States Numbered Highways , state highways and other locally maintained highways may also be divided. Speed limits on rural divided highways range from 65 to 75 miles per hour (105 to 121 km/h), with some portions as high as 80 miles per hour (130 km/h). One privately run toll road in Texas, SH 130, has

7015-701: The first few decades after the Roman invasion of Britain in 43 AD, the Fosse Way marked the western frontier of Roman rule in Iron Age Britain . It is possible that the road began as a defensive ditch that was later filled in and converted into a road, or possibly a defensive ditch ran alongside the road for at least some of its length. The road joined Akeman Street and Ermin Way at Cirencester, crossed Watling Street at Venonis ( High Cross ) south of Leicester, and joined Ermine Street at Lincoln. The Antonine Itinerary (a 2nd-century Roman register of roads) includes

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7130-415: The first paved road—the Appian Way . Unless these allusions are just simple anachronisms, the roads referred to were probably at the time little more than levelled earthen tracks. Thus, the Via Gabiana (during the time of Porsena ) is mentioned in about 500 BC; the Via Latina (during the time of Gaius Marcius Coriolanus ) in about 490 BC; the Via Nomentana (also known as "Via Ficulensis"), in 449 BC;

7245-438: The first) example of a dual carriageway was the Via Portuensis , built in the first century by the Roman emperor Claudius between Rome and its harbor of Portus . The route between the city and the port experienced a great deal of commercial and pedestrian traffic, as Portus served as the primary avenue for the grain shipments of the Cura Annonae into Rome, as well as transporting the majority of goods imported from across

7360-619: The generic speed limit is 120 km/h (75 mph), minimum speed is 60 km/h (37 mph), driving backwards is strictly prohibited, and they shall not have at-grade junctions. Dual carriageways or expressways in Croatia (Croatian: brza cesta ) are non- tolled roads with 2 or more lanes in each direction, but without emergency lanes . The main motorways in Croatia are also dual carriageways, but they have emergency lanes and tolls. Many bypasses and beltways of smaller cities in Croatia have been recently constructed or planned as dual carriageways. All dual carriageways in Croatia house

7475-411: The gravel), and a rain-water gutter. Romans preferred to engineer solutions to obstacles rather than circumvent them. Outcrops of stone, ravines, or hilly or mountainous terrain called for cuts and tunnels. An example of this is found on the Roman road from Căzănești near the Iron Gates . This road was half carved into the rock, about 5   ft to 5   ft 9   in (1.5 to 1.75   m);

7590-416: The habit of condemning well-born citizens to work on the roads. Under the rule of Claudius, Corbulo was brought to justice and forced to repay the money which had been extorted from his victims. Special curatores for a term seem to have been appointed on occasion, even after the institution of the permanent magistrates bearing that title. The emperors who succeeded Augustus exercised a vigilant control over

7705-429: The hard shoulders. A controlled-access highway (motorway) in Spain is referred to as autopista (literally autotrack ). They may be operated by private companies and be tolled. The two major accesses to Spain from France, AP-7 into Catalonia and AP-8 into the Basque Country , are autopistas. In comparison, the prime road between Spain and Portugal is the photographed autovía A-5 . In both autopistas and autovías,

7820-483: The heading of viae privatae were also included roads leading from the public or high roads to particular estates or settlements; Ulpian considers these to be public roads. Features off the via were connected to the via by viae rusticae , or secondary roads. Both main or secondary roads might either be paved or left unpaved with a gravel surface, as they were in North Africa. These prepared but unpaved roads were viae glareae or sternendae ("to be strewn"). Beyond

7935-402: The help of legionaries , with spades excavated the road bed down to bedrock or at least to the firmest ground they could find. The excavation was called the fossa , the Latin word for ditch. The depth varied according to terrain. The method varied according to geographic locality, materials available, and terrain, but the plan or ideal at which the engineer aimed was always the same. The road

8050-478: The highest speed limit in the United States at 85 miles per hour (137 km/h). Urban divided highways which are at grade and typically have much lower speed limits are sometimes called boulevards . In keeping with the U.S. Department of Transportation 's Manual on Uniform Traffic Control Devices (MUTCD), since the early 1970s all divided highways are striped by color to show the direction of traffic flow. Two-way undivided roads have an amber center line, with

8165-400: The historic road line. South of Leicester , the B4114 (originally the A46 but renumbered when the M69 was opened) follows the route. This is apart from a short deviation near Narborough , where the original course is no longer visible. A short distance north of the A5 , the B4114 diverges from the line of the Fosse Way to pass through the village of Sharnford . For 2 miles (3.2 km)

8280-663: The introduction the Irish Planning system in 1964. Today Irish planning policy prohibits such development on National Primary or National Secondary roads where the speed limit exceeds 60 km/h (37 mph). This policy results from concerns expressed by the National Roads Authority. A local authority is not obliged to implement this policy and can disregard this policy at its own discretion. This would usually only occur in exceptional circumstances or where planners are overruled by elected councillors using section 140 of

8395-704: The lanes of an existing road (for example US Highway 33 between Elkhart and Goshen in northern Indiana). Like other countries, there are several types of divided highways; fully controlled-access divided routes with interchanges (commonly known as "freeways" in the United States, Australia, and regionally within Canada), expressways that often include a mix of interchanges and traffic signals, and divided arterial roads that are almost entirely stop-controlled. Unlike some other countries, divided dual carriageways in Canada are seldom equipped with traffic circles , roundabouts, or rotaries as alternatives to stoplights. In Canada,

8510-492: The lead and silver mines at Charterhouse . The Fosse Way passes through the eastern suburbs of Shepton Mallet on a short stretch of the A361 to Cannard's Grave, where it picks up the A37. The Fosse Way follows the A37 through Street-on-the-Fosse and Lydford-on-Fosse on a direct route to Ilchester . The route leaves the A37 north of the A303 junction just north of Ilchester, and follows

8625-594: The line of A37 through Yeovil to the south east. Other minor Roman roads lead from Ilchester and Lydford-on-Fosse towards Street and the A39 route along the Polden Hills , leading to Roman salt works on the Somerset Levels , and ports at Combwich , Crandon Bridge and Highbridge . After Ilchester the Fosse Way is followed by a section of the A303 under the ramparts of the Iron Age hill fort of Ham Hill , occupied by

8740-573: The march brought its own baggage train ( impedimenta ) and constructed its own camp ( castra ) every evening at the side of the road. Dual carriageway A dual carriageway ( BrE ) or a divided highway ( AmE ) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are designed to higher standards with controlled access are generally classed as motorways , freeways, etc., rather than dual carriageways. A road without

8855-535: The median-side baseline is solid amber, and the right sideline is solid white. Frequently in the U.S. the two carriageways are separated by some distance (wide medians with small forests or even hills in them), but drivers can always tell whether the roadway is two-way or one-way—and, if one-way, the direction in which the traffic flows—by looking at the striping coloration. For an example, see inset showing U.S. Route 52 near Lafayette, Indiana . Some divided highways have been turned into undivided highways by widening

8970-585: The minute care which was bestowed on the service of the public roads. Ancient Rome boasted impressive technological feats, using many advances that were lost during the Middle Ages . Some of these accomplishments would not be rivaled in Europe until the Modern Age . Many practical Roman innovations were adopted from earlier designs. Some of the common, earlier designs incorporated arches . Roman road builders aimed at

9085-678: The need to preserve access to adjoining property or to the absence of a non-motorway alternative route. Also, dual carriageways that are not motorway classified do not need to be equipped with emergency phones. Motorway restrictions only apply to motorway sections, rather than all dual carriageway sections of national roads (these are signposted with the N prefix on the route number, rather than M ). Some national secondary roads , and regional roads in particular often have houses, schools and other developments fronting on to them. Less important national primary roads , and older sections not yet upgraded may also feature such developments built before

9200-517: The number of junctions on the dual carriageway; often other roads will pass over or under the dual carriageway without an intersection. A dual carriageway with grade-separated junctions and which meets other requirements may be upgraded to motorway standard, denoted by an (M) added after the road number (e.g. " A1(M) " or " A38(M) "). Unlike in Ireland, there was no official terminology for 'high-quality dual carriageways' until April 2015, when in England

9315-491: The office of curator of each of the great public roads a perpetual magistracy rather than a temporary commission. The persons appointed under the new system were of senatorial or equestrian rank, depending on the relative importance of the roads assigned to them. It was the duty of each curator to issue contracts for the maintenance of his road and to see that the contractor who undertook said work performed it faithfully, as to both quantity and quality. Augustus also authorized

9430-577: The old alignment, first as Melton Road then Belgrave Road and Belgrave Gate. The alignment terminates at the Clock Tower , and picks up again at Narborough Road (the A5460), on the other side of the River Soar . A 19 miles (31 km) stretch of the road between Widmerpool & Newark-on-Trent has been upgraded to a dual carriageway which was completed in 2012. The new route deviates in several sections from

9545-436: The passing of two carts of standard (4 foot) width without interference to pedestrian traffic. Actual practices varied from this standard. The Tables command Romans to build public roads and give wayfarers the right to pass over private land where the road is in disrepair. Building roads that would not need frequent repair therefore became an ideological objective, as well as building them as straight as practicable to construct

9660-413: The paving of the streets of Rome or at least shared that responsibility with the quattuorviri viarum . It has been suggested that the quaestors were obliged to buy their right to an official career by personal outlay on the streets. There was certainly no lack of precedents for this enforced liberality, and the change made by Claudius may have been a mere change in the nature of the expenditure imposed on

9775-618: The quaestors. The official bodies which first succeeded the censors in the care of the streets and roads were: Both these bodies were probably of ancient origin. The first mention of either body occurs in the Lex Julia Municipalis in 45 BC. The quattuorviri were afterwards called quattuorviri viarum curandarum . The extent of jurisdiction of the duoviri is derived from their full title as duoviri viis extra propiusve urbem Romam passus mille purgandis . Their authority extended over all roads between their respective gates of issue in

9890-453: The quality of intersecting junctions. The national speed limit applies on dual carriageways (unless it is in a ' built-up area ', or a lower limit is posted), which is as follows: A dual carriageway in a built up area will have a statutory speed limit of 30 mph (48 km/h) unless otherwise sign-posted. It is common for such urban dual carriageways to have an increased speed limit of 40 mph (64 km/h). A road deemed to be in

10005-408: The rest of Italy and provinces beyond. In this capacity he had effectively given himself and any following emperors a paramount authority which had originally belonged to the city censors. The quattuorviri board was kept as it was until at least the reign of Hadrian (117 to 138 AD). Furthermore, he appointed praetorians to the offices of "road-maker" and assigning each one with two lictors , making

10120-616: The rest of the road, above the Danube , was made from wooden structure, projecting out of the cliff. The road functioned as a towpath, making the Danube navigable. Tabula Traiana memorial plaque in Serbia is all that remains of the now-submerged road. Roman bridges were some of the first large and lasting bridges created. River crossings were achieved by bridges, or pontes . Single slabs went over rills. A bridge could be of wood, stone, or both. Wooden bridges were constructed on pilings sunk into

10235-407: The river, or on stone piers. Stone arch bridges were used on larger or more permanent crossings. Most bridges also used concrete, which the Romans were the first to use for bridges. Roman bridges were so well constructed that many remain in use today. Causeways were built over marshy ground. The road was first marked out with pilings. Between them were sunk large quantities of stone so as to raise

10350-503: The roads allow higher speed traffic than is common on other roads. This in turn requires them to have dual carriageways in most cases. An exception is the 2+1 road system in some rural areas; these roads are also referred to as expressways. Autobahnähnliche Straßen mostly are colloquially referred to as gelbe Autobahn (yellow motorway) because they have the same technical standard as the Autobahn but have black on yellow signs instead of

10465-457: The roads outside the city, and for forming raised footpaths at the sides. In these roads, the surface was hardened with gravel, and although pavements were introduced shortly afterwards, the blocks were laid on a bed of small stones. Examples include the Via Praenestina and Via Latina . The best sources of information as regards the construction of a regulation via munita are: After

10580-865: The route have the suffix -cester or -chester , which is derived from Old English ceaster / cæster (ultimately from Latin castra meaning 'military camp'). Some settlements are named after the road itself, such as Fosse- , or -on-Fosse , while others have a more generic form, such as Street , Strete , -le-Street , Stratton , Stretton , Stratford , and Stretford , derived from Old English strǣt / strēt (ultimately from Latin strata , meaning 'paved road'). The route runs from 50°44′N 3°29′W  /  50.73°N 3.48°W  / 50.73; -3.48 in Exeter to 53°14′N 0°32′W  /  53.23°N 0.54°W  / 53.23; -0.54 in Lincoln. Between Lincoln and Leicester

10695-717: The route leads south-west along the old A30, to Strete Ralegh, where there is a short break, then a clear alignment along the former A30, now a minor road, towards Exeter. Roman road At the peak of Rome's development, no fewer than 29 great military highways radiated from the capital, and the empire's 113 provinces were interconnected by 372 great roads. The whole comprised more than 400,000 kilometres (250,000 miles ) of roads, of which over 80,500 kilometres (50,000 mi) were stone-paved. In Gaul alone, no less than 21,000 kilometres (13,000 mi) of roadways are said to have been improved, and in Britain at least 4,000 kilometres (2,500 mi). The courses (and sometimes

10810-497: The route of the Fosse Way is followed by a minor road, named Roman Road which, although single track, runs along a much wider and slightly domed strip of land with deep ditches either side (the agger ). The modern road ends at a picnic site car park, and a further 1.5 miles (2.4 km) southwards can be explored on foot. The junction of Fosse Way with Watling Street , now the A5 , is at High Cross (Roman name Venonis ). Watling Street

10925-403: The same class of road, except in cities and built-up areas where the dual carriageway is more of a safety measure. When first constructed, many dual carriageways—including the first motorways—had no crash- or other barriers in the central reservation. In the event of congestion, or if a driver missed their exit, some drivers made U-turns onto the opposite carriageway; many accidents were caused as

11040-462: The secondary roads were the viae terrenae , "dirt roads". The third category comprised roads at or in villages, districts , or crossroads , leading through or towards a vicus or village. Such roads ran either into a high road or into other viae vicinales , without any direct communication with a high road. They were considered public or private, according to the fact of their original construction out of public or private funds or materials. Such

11155-662: The section between High Cross and Lincoln, and lists intermediate points at Verometo ( Willoughby on the Wolds ), Margiduno (Castle Hill near Bingham ), Ad Pontem ( East Stoke ) and Crocolana ( Brough ). From Lincoln to Ilchester in Somerset , a distance of 182 miles (293 km), the route is never more than 6 miles (10 km) from a straight line. Many sections of the Fosse Way form parts of modern roads and lanes, and parish , district or county boundaries, but some parts are now only accessible on foot. Several place names on

11270-445: The shortest possible roads, and thus save on material. Roman law defined the right to use a road as a servitus , or liability. The ius eundi ("right of going") established a claim to use an iter , or footpath, across private land; the ius agendi ("right of driving"), an actus , or carriage track. A via combined both types of servitutes , provided it was of the proper width, which was determined by an arbiter . The default width

11385-430: The street inside Rome, including the Clivus Capitolinus , with lava, and for laying down the roads outside the city with gravel. Sidewalks were also provided. The aediles , probably by virtue of their responsibility for the freedom of traffic and policing the streets, co-operated with the censors and the bodies that succeeded them. It would seem that in the reign of Claudius the quaestors had become responsible for

11500-477: The surfaces) of many Roman roads survived for millennia; some are overlaid by modern roads. "The extraordinary greatness of the Roman Empire manifests itself above all in three things: the aqueducts, the paved roads, and the construction of the drains." Dionysius of Halicarnassus , Ant. Rom. 3.67.5 Livy mentions some of the most familiar roads near Rome, and the milestones on them, at times long before

11615-598: The term viae regales compare the roads of the Persian kings (who probably organized the first system of public roads) and the King's Highway . With the term viae militariae compare the Icknield Way ( Icen-hilde-weg , or "War-way of the Iceni"). There were many other people, besides special officials, who from time to time and for a variety of reasons sought to connect their names with

11730-646: The term "divided highway" is used for this type of road, and the segment between the roadways is referred to as a "median". There may be gaps in the median strip of a partially controlled-access road to allow turning and crossing. More informally, a divided highway may be referred to as "twinned". This stems from the practice of "twinning" an existing two-lane highway and converting it into a divided highway. Such highways in southern Ontario, southern Quebec, and parts of Atlantic Canada usually feature full controlled-access with interchanges where robust federal and provincial funding has made such freeways possible. However, due to

11845-528: The terms via munita and vía publica became identical. Viae were distinguished according to their public or private character, as well as according to the materials employed and the methods followed in their construction. Ulpian divided them up in the following fashion: According to Isidore of Sevilla , the Romans borrowed the knowledge of construction of viae munitae from the Carthaginians , though certainly inheriting some construction techniques from

11960-413: The urban administration, both abolished and created new offices in connection with the maintenance of public works, streets, and aqueducts in and around Rome. The task of maintaining the roads had previously been administered by two groups of minor magistrates, the quattuorviri (a board of four magistrates to oversee the roads inside the city) and the duoviri (a board of two to oversee the roads outside

12075-474: The various functionaries, including emperors, who succeeded the censors in this portion of their duties, may be said to have exercised a devolved censorial jurisdiction. The devolution to the censorial jurisdictions became a practical necessity, resulting from the growth of the Roman dominions and the diverse labors which detained the censors in the capital city. Certain ad hoc official bodies successively acted as constructing and repairing authorities. In Italy,

12190-609: The water would flow out from between the stones and fragments of rubble instead of becoming mud in clay soils. According to Ulpian , there were three types of roads: The first type of road included public high or main roads, constructed and maintained at the public expense, and with their soil vested in the state. Such roads led either to the sea, to a town, to a public river (one with a constant flow), or to another public road. Siculus Flaccus , who lived under Trajan (98–117), calls them viae publicae regalesque , and describes their characteristics as follows: Roman roads were named after

12305-414: The white on blue signs used on the Autobahn motorway network. These are generally high-speed arterial roads in larger cities or important roads within a federal state that do not connect to major cities, so that they do not fall under the federal budget for the Autobahn network. The federal road Bundesstraße 27 is an example where about half of its length is upgraded to a high speed motorway standard. On

12420-403: The years the Romans realized this and built longer but more manageable alternatives to existing roads. Roman roads generally went straight up and down hills, rather than in a serpentine pattern of switchbacks. As to the standard Imperial terminology that was used, the words were localized for different elements used in construction and varied from region to region. Also, in the course of time,

12535-480: Was Julius Caesar , who became curator (67 BC) of the Via Appia and spent his own money liberally upon it. Certain persons appear also to have acted alone and taken responsibility for certain roads. In the country districts, the magistri pagorum had authority to maintain the viae vicinales . In Rome each householder was legally responsible for the repairs to that portion of the street which passed his own house; it

12650-467: Was a military responsibility and thus came under the jurisdiction of a consul. The process had a military name, viam munire , as though the via were a fortification. Municipalities, however, were responsible for their own roads, which the Romans called viae vicinales . Roads were not free to use; tolls abounded, especially at bridges. Often they were collected at the city gate. Freight costs were made heavier still by import and export taxes. These were only

12765-448: Was constructed by filling the fossa . This was done by layering rock over other stones. Into the fossa was placed large amounts of rubble , gravel and stone, whatever fill was available. Sometimes a layer of sand was put down, if it was locally avbailable. When the layers came to within 1 yd (1 m) or so of the surface, the subsurface was covered with gravel and tamped down, a process called pavire , or pavimentare . The flat surface

12880-470: Was opened running 55 km (34 mi) from Milan to Varese . It featured a broad road bed and did not feature lane dividers except near cities and through the mountains. The London end of the Great West Road became Britain's first dual carriageway when it was opened in 1925 by King George V . In 1927 the Rome bypass was opened. It ran 92 km (57 mi) bypassing Rome to the east. Almost

12995-504: Was the latitudo legitima of 8 feet. Roman law and tradition forbade the use of vehicles in urban areas, except in certain cases. Married women and government officials on business could ride. The Lex Julia Municipalis restricted commercial carts to night-time access in the city within the walls and within a mile outside the walls. Roman roads varied from simple corduroy roads to paved roads using deep roadbeds of tamped rubble as an underlying layer to ensure that they kept dry, as

13110-422: Was the duty of the aediles to enforce this responsibility. The portion of any street which passed a temple or public building was repaired by the aediles at the public expense. When a street passed between a public building or temple and a private house, the public treasury and the private owner shared the expense equally. The governing structure was changed by Augustus , who in the course of his reconstitution of

13225-400: Was then the pavimentum . It could be used as the road, or additional layers could be constructed. A statumen or "foundation" of flat stones set in cement might support the additional layers. The final steps utilized lime-based mortar , which the Romans had discovered. They seem to have mixed the mortar and the stones in the ditch. First a small layer of coarse concrete , the rudus , then

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