Runkel is a town on the river Lahn in Limburg-Weilburg district in Hesse , Germany .
82-638: Runkel lies in the Lahn Valley on both sides of the river between the Westerwald and the Taunus , some eight kilometres east of Limburg . Runkel borders in the north on the community of Beselich and the town of Weilburg , in the east on the communities of Weinbach and Villmar and in the south and west on the town of Limburg. The town consists of 9 Stadtteile . The town's first documentary mention came in 1159 in an enfeoffment document in which
164-544: A humid continental climate (Köppen climate classification: Dfb ). In the lowlands of the Unterwesterwald (Lower Westerwald), summers tend to be warm to hot. Erratic convective downpours are not uncommon, yet mostly brief. Winters are mild and see a lot of precipitation, which mostly falls as rain. Snowfall occurs multiple times a year, but usually melts within hours. Thermophilic fruits like figs and peaches are hardy in this area. The mountainous areas of
246-412: A limited-access highway (expressway), though they are sometimes used at junctions between surface streets. Note: The descriptions of interchanges apply to countries where vehicles drive on the right side of the road. For left-side driving, the layout of junctions is mirrored. Both North American (NA) and British (UK) terminology is included. The concept of the controlled-access highway developed in
328-407: A teardrop shape, with the points facing towards the center of the interchange. Longer ramps are often required due to line-of-sight requirements at roundabouts. A partial cloverleaf interchange (often shortened to the portmanteau, parclo ) is an interchange with loops ramps in one to three quadrants, and diamond interchange ramps in any number of quadrants. The various configurations are generally
410-621: A basalt-rich region. Wäller is another vernacular name for them. One of the 12 best-rated hiking trails in Germany is the Westerwaldsteig. The Westerwaldsteig crosses the Westerwald from east ( Herborn ) to west ( Rhine ). Interchange (road) In the field of road transport , an interchange (American English) or a grade-separated junction (British English) is a road junction that uses grade separations to allow for
492-399: A complex appearance and are often colloquially described as Mixing Bowls , Mixmasters (for a Sunbeam Products brand of electric kitchen mixers ), or as Spaghetti Bowls or Spaghetti Junctions (being compared to boiled spaghetti ). However, they consume a significantly smaller area of land compared to a cloverleaf interchange. A combination interchange (sometimes referred to by
574-435: A design seen in an Argentinian magazine. A system interchange connects multiple controlled-access highways, involving no at-grade signalised intersections. A cloverleaf interchange is a four-legged junction where left turns across opposing traffic are handled by non-directional loop ramps. It is named for its appearance from above, which resembles a four-leaf clover . A cloverleaf is the minimum interchange required for
656-475: A directional T interchange) is typically used when a three-way interchange is required for two or three highways interchanging in semi-parallel/perpendicular directions, but it can also be used in right-angle case as well. Their connecting ramps can spur from either the right or left side of the highway, depending on the direction of travel and the angle. Directional T interchanges use flyover/underpass ramps for both connecting and mainline segments, and they require
738-412: A dumbbell interchange or a dogbone interchange, is similar to the diamond interchange, but uses a pair of roundabouts in place of intersections to join the highway ramps with the crossroad. This typically increases the efficiency of the interchange when compared to a diamond, but is only ideal in light traffic conditions. In the dogbone variation, the roundabouts do not form a complete circle, instead having
820-659: A four-legged system interchange. Although they were commonplace until the 1970s, most highway departments and ministries have sought to rebuild them into more efficient and safer designs. The cloverleaf interchange was invented by Maryland engineer Arthur Hale, who filed a patent for its design on May 24, 1915. The first one in North America opened on December 15, 1929, in Woodbridge, New Jersey, connecting New Jersey Route 25 and Route 4 (now U.S. Route 1/9 and New Jersey Route 35). It
902-667: A moderate amount of land and moderate costs since only two levels of roadway are typically used. Their name derives from their resemblance to the capital letter T, depending upon the angle from which the interchange is seen and the alignment of the roads that are interchanging. It is sometimes known as the "New England Y", as this design is often seen in the northeastern United States, particularly in Connecticut. This type of interchange features directional ramps (no loops, or weaving right to turn left) and can use multilane ramps in comparatively little space. Some designs have two ramps and
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#1732801617836984-427: A nobleman named Siegfried von Runkel had his name appear as a witness. It is believed that this Siegfried was the one who built Runkel Castle. In 1191 Siegfried married a countess of Katzenelnbogen. This high noble family forced Dietrich of Runkel to open his castles Runkel and Dehrn. No later than 1230, the castle had a chapel , thereby giving Runkel its first church building. In 1288, after years of family disputes,
1066-454: A parclo AB features a loop ramp approaching the crossroad in one direction, and beyond the crossroad in the opposing direction, as in the example image. A diverging diamond interchange (DDI) or double crossover diamond interchange (DCD) is similar to a traditional diamond interchange, except the opposing lanes on the crossroad cross each other twice, once on each side of the highway. This allows all highway entrances and exits to avoid crossing
1148-463: A patent for the design of a cloverleaf interchange on May 24, 1915, though the conceptual roadwork was not realised until a cloverleaf opened on December 15, 1929, in Woodbridge, New Jersey , connecting New Jersey Route 25 and Route 4 (now U.S. Route 1/9 and New Jersey Route 35 ). It was designed by Philadelphia engineering firm Rudolph and Delano, based on
1230-535: A range of handcrafted utility ware, with hand-painted swirling floral motifs. In the eastern Westerwald (the part lying in Hesse) are found interesting limestone deposits from the most varied of geological times. Erdbach limestone from the Lower Carboniferous gave one small time period the name "Erdbachian". Near Breitscheid are found the remnants of an atoll from the subtropical Devonian sea that
1312-720: A record cold winter led many people from the Palatinate, including Runkel an Lahn, to emigrate down the Rhine River , then to England in 1709. There were so many refugees from the German Palatine region that the English government set up a tent city for the winter outside the London walls. In 1710 ten English ships carried nearly 3,000 Germans to the colony of New York . The people worked off their passage in camps on
1394-439: A safer modification of the cloverleaf design, due to a partial or complete reduction in weaving, but may require traffic lights on the lesser-travelled crossroad. Depending on the number of ramps used, they take up a moderate to large amount of land, and have varying capacity and efficiency. Parclo configurations are given names based on the location of and number of quadrants with ramps. The letter A denotes that, for traffic on
1476-543: A small angle and meet the non-freeway at almost right angles. These ramps at the non-freeway can be controlled through stop signs , traffic signals , or turn ramps. Diamond interchanges are much more economical in use of materials and land than other interchange designs, as the junction does not normally require more than one bridge to be constructed. However, their capacity is lower than other interchanges and when traffic volumes are high they can easily become congested. A double roundabout diamond interchange, also known as
1558-640: A strip of land on the Rhine's right bank and the so-called Rhine-Westerwald; the Westerwald itself lay outside the Roman-occupied area, for the Romans preferred to maintain a little-settled, most likely pathless wilderness as their border. The Westerwald's permanent settlement and thereby its territorial history began with the Chatti (Hessians) pushing their way into the area after the Romans were driven out in
1640-401: A three-level semi-directional T at Highway 407 and a two-level semi-directional T at Highway 401 . Service interchanges are used between a controlled-access route and a crossroad that is not controlled-access. A full cloverleaf may be used as a system or a service interchange. A diamond interchange is an interchange involving four ramps where they enter and leave the freeway at
1722-509: A three-way interchange. However, in a semi-directional T, some of the splits and merges are switched to avoid ramps to and from the passing lane , eliminating the major disadvantage of the directional T. Semi-directional T interchanges are generally safe and efficient, though they do require more land and are costlier than trumpet interchanges. Semi-directional T interchanges are built as two- or three-level junctions, with three-level interchanges typically used in urban or suburban areas where land
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#17328016178361804-442: A toll road meets another toll road or a free highway. They are also useful when most traffic on the terminating highway is going in the same direction. The turn that is used less often would contain the slower loop ramp. Trumpet interchanges are often used instead of directional or semi-directional T or Y interchanges because they require less bridge construction but still eliminate weaving. A full Y-interchange (also known as
1886-422: A traditional stack interchange. A three-level roundabout interchange features a grade-separated roundabout which handles traffic exchanging between highways. The ramps of the interchanging highways meet at a roundabout , or rotary, on a separated level above, below, or in the middle of the two highways. These interchanges can also be used to make a "linking road" to the destination for a service interchange, or
1968-608: Is German for "forest" or "woods") around the three churches in Bad Marienberg , Rennerod and Emmerichenhain, west of the royal court at Herborn . Only since the mid 19th century has the name come into common usage for the whole range. The High Westerwald has since the Middle Ages formed the heart of the Herrschaft zum (also vom or auf dem ) Westerwald ("Lordship over the Westerwald"). This comprised
2050-446: Is a 3-level stack, since the semi-directional ramps are spaced out far enough, so they do not need to cross each other at a single point as in a conventional 4-level stack. Stacks are significantly more expensive than other four-way interchanges are due to the design of the four levels; additionally, they may suffer from objections of local residents because of their height and high visual impact. Large stacks with multiple levels may have
2132-694: Is also the inspiration for the South Korean military song, "Our Nation Forever". In recent years it has become somewhat controversial in Germany due to its origins during the National Socialist era, with the German military ceasing performances of it in 2017. The standard German term for a Westerwald dweller is Westerwälder ( IPA: [ˈvɛstɐvɛldɐ] ; plural: same), but they are also popularly known as Basaltköpp (“Basalt Heads”), as they are said to be thickheaded, and they live in
2214-428: Is an alternative four-way directional interchange. The turbine interchange requires fewer levels (usually two or three) while retaining directional ramps throughout. It features right-exit, left-turning ramps that sweep around the center of the interchange in a clockwise spiral . A full turbine interchange features a minimum of 18 overpasses, and requires more land to construct than a four-level stack interchange; however,
2296-477: Is braided when at least one of the roadways reverses sides. It seeks to make left and right turns equally easy. In a pure braided interchange, each roadway has one right exit, one left exit, one right on-ramp, and one left on-ramp, and both roadways are flipped. The first pure braided interchange was built in Baltimore at Interstate 95 at Interstate 695 ; however, the interchange was reconfigured in 2008 to
2378-548: Is centred on Höhr-Grenzhausen . Exports, particularly to Italy, are also important (more than one million metric tons each year). In the mid 16th century, potters from Raeren in Belgium migrated into the Westerwald, bringing with them some of their moulds . This type of pottery was taken to the New World and was found in the early Chesapeake settlements. Today one finds not only highly crafted moulded vases and mugs but also
2460-708: Is found south of the Rothaargebirge , southwest of the Lahn-Dill-Bergland (another low mountain range), north of the Taunus and east of the Middle Rhine and stretches more or less southwards from Siegen and Burbach , southwestwards from Haiger , northwestwards from Weilburg , northwards from Limburg an der Lahn , northeastwards from Koblenz , eastwards from Linz am Rhein , southeastwards from Wissen and southwards from Betzdorf . In its centre lie Bad Marienberg and Hachenburg . Clockwise,
2542-470: Is more expensive. In a three-level semi-directional T, the two semi-directional ramps from the terminating highway cross the surviving highway at or near a single point, which requires both an overpass and underpass. In a two-level semi-directional T, the two semi-directional ramps from the terminating highway cross each other at a different point than the surviving highway, necessitating longer ramps and often one ramp having two overpasses. Highway 412 has
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2624-589: Is the Fuchskaute in the High Westerwald, meaning "fox hollow". Many peaks and crests exceed the 600-metre level. Sorted by elevation above sea level, these are some of the Westerwald's highest elevations: The following are the Westerwald's rivers and streams: Weiher is a German word meaning "pond". Through prehistoric finds it can be determined that the Celts settled in the Westerwald and were using
2706-541: The Siegerländer Erzrevier (roughly "Siegerland Ore Grounds"). Despite its relatively slight elevation, the Westerwald has for a low mountain range a typical agreeable climate. Economically and culturally, it belongs among Germany's best known mountain ranges. The name "Westerwald" was first mentioned in 1048 in a document from the Electorate of Trier and described at that time the woodlands ( Wald
2788-542: The Autobahnen A ;3 ( Cologne – Frankfurt ), A 45 ( Dortmund – Aschaffenburg ) and A 48 . The most notable railway is the Cologne-Frankfurt high-speed rail line with minor stops at Montabaur and Limburg an der Lahn. The High Westerwald is served by Siegerland Airport for private use and special touristic charters, south of Burbach . Geologically , the Westerwald is part of
2870-733: The Hudson River . In 1723 and later they were finally allowed to acquire land in New York's Mohawk Valley , where they established towns such as German Flatts and Palatine Bridge, New York . In 1791, Friedrich Ludwig, the last of the Wied-Runkel line, was made a prince. In 1796, fighting in Runkel's streets broke out as troops of the Landgrave of Hesse-Darmstadt drove French revolutionary occupying soldiers out of town. In 1806,
2952-592: The Oberwesterwald (Upper Westerwald) and Hoher Westerwald (High Westerwald) feature a much colder climate and are more prone to extreme weather, such as extreme wind gusts during extratropical cyclones . Summer days are pleasantly warm and rarely become hot due to a cool breeze, while winters are cold and rich in snow. The area is home to a number of ski areas . District seats in the Westerwald are: Altenkirchen (Altenkirchen district), Montabaur (Westerwaldkreis) and Neuwied (Neuwied district). Furthermore,
3034-408: The community of the same name , and Limburg an der Lahn , a town with a medieval centre. The geologically old, heavily eroded range of the Westerwald is in its northern parts overlaid by a volcanic upland made of Neogene basalt layers. It covers an area of some 50 km × 70 km (31 mi × 43 mi), and therefore roughly 3,000 km (1,200 sq mi), making
3116-400: The controlled-access highway , the loop ramps are located in advance of (or approaching ) the crossroad, and thus provide an onramp to the highway. The letter B indicated that the loop ramps are beyond the crossroad, and thus provide an offramp from the highway. These letters can be used together when opposite directions of travel on the controlled-access highway are not symmetrical, thus
3198-588: The phylloxera infestation and a cold winter. In the end, the vinicultural area amounted to 35 hectares. In 1860, the first savings and loan association ( Sparkasse ) in Runkel was founded under the name Vorschuss-Verein (“Credit Club”). Since 1914 there has been a central water supply in the town. In the course of administrative reform in Hesse, the formerly autonomous communities of Steeden, Ennerich and Schadeck merged on 1 December 1970, as did likewise Arfurt, Eschenau, Hofen and Wirbelau on 31 December 1970, with
3280-505: The "Neues Westerwaldlied" ("New Westerwald Song") by songwriter Ulrik Remy, "Ich bin aus 'm Westerwald" ("I am from the Westerwald") and "Das schönste Mädchen vom Westerwald" ("The Loveliest Girl from the Westerwald") by Karl-Eberhard Hain and Jürgen Hardeck, made well known by De Höhner , Die Schröders and other groups. The "Westerwaldlied" is also sung by the Chilean Armed Forces and is known as "Himno de la Sección". It
3362-403: The "inside" through road (on the same side as the freeway that ends) crossing each other at a three-level bridge. The directional T interchange is preferred to a trumpet interchange because a trumpet requires a loop ramp by which speeds can be reduced, but flyover ramps can handle much faster speeds. The disadvantage of the directional T is that traffic from the terminating road enters and leaves on
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3444-521: The 1920s and 1930s in Italy, Germany, the United States, and Canada. Initially, these roads featured at-grade intersections along their length. Interchanges were developed to provide access between these new highways and heavily-travelled surface streets. The Bronx River Parkway and Long Island Motor Parkway were the first roads to feature grade-separations. Maryland engineer Arthur Hale filed
3526-474: The 3rd century. Placename endings such as –ar, –mar and –aha ("Haigraha" = Haiger ) stemming from the Migration Period ( "Völkerwanderung" ) can still be found now. These lie around the forest's outer edges in basins and dales whose soils and climate were favourable to early settlers, and include, for instance, Hadamar , Lahr and Wetzlar . From the 4th to the 6th century, the settlements from
3608-527: The Dill, also belong to the Westerwald, whereas the mountains reaching up to 680 m (2,230 ft) near the Haiger Saddle ( Haiger Sattel ) and east of Siegen are counted as part of the Rothaargebirge . The Westerwald is divided by elevation into these three regions: The climate of the region vastly qualifies as oceanic (Köppen climate classification: Cfb ), while higher altitudes experience
3690-632: The Electorate of Trier were all prominent landlords. Political relations were simplified until the 16th century. Among the four greater powers' spheres of influence (Mainz, Cologne, Trier, Hesse), the House of Nassau managed to expand and strengthen its hold on its territory on the Dill between Siegen and Nassau . After the Napoleonic upheavals, Nassau had to share broad swathes of the Westerwald with
3772-907: The Lahn-Dill-Kreis, the Mayen-Koblenz district, the Rhein-Lahn-Kreis and the Limburg-Weilburg district each have shares of the Westerwald. If Sieg is taken as the Westerwald's northernmost limit, then the Rhein-Sieg district likewise belongs here, at least in parts (for example the Siebengebirge and the communities of Eitorf and Windeck ). The Westerwald and its outer edges are crossed by stretches of Bundesstraßen 8 , 42, 49 , 54 , 62 , 255, 256, 277, 413 and 414, over which there are connections to
3854-695: The Lords of Runkel and those of Westerburg sundered into two lines. In 1440, building work began on the Lahn bridge , but owing to the rift between the Runkels and the Westerburgs, the work took until 1448. In 1447 Count Philipp of Katzenelnbogen was the liege lord. In 1543, Count Johann IV of Wied had Philipp Melanchthon as a guest at Runkel Castle. In 1568, the Reformation was introduced. In 1622, there
3936-621: The Rhenish Massif, and likewise represents a heavily eroded remnant of a great Variscan mountain system which in the Mesozoic characterized a great deal of Europe. The Devonian bedrock is covered by volcanic masses from the Tertiary , particularly basalt and tuffs . Economically important, besides slate, limestone and clay quarrying , were, and still are, iron and its processing industry between Rheintal (Unkel, Linz) and
4018-511: The Runkel holdings on the Lahn's right bank, and thereby the part of the town of Runkel lying there, passed to the Duchy of Berg . In 1824, the Wied-Runkel line died out with Prince Friedrich Ludwig's death, putting the lordly domain, along with the town of Runkel, in Wied-Neuwied's hands. Winegrowing is known to have been practised in Runkel by 1270. In 1929, however, it was given up after
4100-541: The Trier and Cologne mission, this area underwent Christianization. Trier advanced up the Lahn, Cologne to the Rhine and Sieg. Trier-Lorrainian and Lower Rhine influences were nevertheless brought into the Westerwald. Among the witnesses to the art of building at that time is the monastery church at Limburg- Dietkirchen , in its oldest parts. After many changes in ownership between the Ottonian and Salian noble families, it
4182-485: The United States opened on July 7, 2009, in Springfield, Missouri , at the junction of Interstate 44 and Missouri Route 13 . A single-point urban interchange (SPUI) or single-point diamond interchange (SPDI) is a modification of a diamond interchange in which all four ramps to and from a controlled-access highway converge at a single, three-phase traffic light in the middle of an overpass or underpass. While
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#17328016178364264-648: The Upper Westerwald, bypassing the High Westerwald, seeing it as nothing more than a trackless wooded wilderness, after which they eventually came up against the Rhine in the 2nd century. Even in the time when the Celts found themselves having to avoid the Germanic invaders by moving to the west, the Romans were also pushing in from the Rhine's left bank to the southwest. However, the Romans only managed to seize
4346-697: The Westerwald is bordered by the following river valleys: the Rhine between Koblenz and Linz , the Sieg as far as Betzdorf, the Heller , the Dill and from its mouth near Wetzlar , the Lahn up to Lahnstein . Geomorphologically , the Westerwald belongs to the Rhenish Massif, which forms the greater part of that range's eastern half on the Rhine's right bank. Likewise, the Gladenbach Uplands , lying east of
4428-418: The Westerwald one of Germany's biggest mountain ranges by area. In areas of subsidence , it has in its flatter western part (Lower Westerwald) the characteristics of rolling hills. Typical for the economy of the Upper Westerwald, some 40% of which is actually wooded, are traditional slate mining, clay quarrying , diabase and basalt mining, pottery and the iron ore industry, and among other things mining in
4510-481: The Westerwald's north and southwest edges even gave two Lower Devonian layers, with their colourful slates, their names. The upper mountain layers are formed of volcanic strata made of basalt containing tuffs. In a few areas, slate and clay have long been quarried, the latter notably in the so-called Kannenbäckerland , but also in a few other places where the clay is worked into the salt- glazed grey Westerwald Pottery with cobalt blue decoration. The pottery industry
4592-401: The bridges are generally short in length. Coupled with reduced maintenance costs, a turbine interchange is a less costly alternative to a stack. A windmill interchange is similar to a turbine interchange, but it has much sharper turns, reducing its size and capacity. The interchange is named for its similar overhead appearance to the blades of a windmill . A variation of the windmill, called
4674-507: The compact design is safer, more efficient, and offers increased capacity—with three light phases as opposed to four in a traditional diamond, and two left turn queues on the arterial road instead of four—the significantly wider overpass or underpass structure makes them more costly than most service interchanges. Since single-point urban interchanges can exist in rural areas, such as the interchange of U.S. Route 23 with M-59 in Michigan ;
4756-537: The creation of a new basic road as a service interchange. Trumpet interchanges may be used where one highway terminates at another highway, and are named as such for to their resemblance to trumpets . They are sometimes called jug handles . These interchanges are very common on toll roads , as they concentrate all entering and exiting traffic into a single stretch of roadway, where toll plazas can be installed once to handle all traffic, especially on ticket-based tollways . A double-trumpet interchange can be found where
4838-448: The diverging windmill, increases capacity by altering the direction of traffic flow of the interchanging highways, making the connecting ramps much more direct. There also is a hybrid interchange somewhat like the diverging windmill in which left turn exits merge on the left, but it differs in that the left turn exits use left directional ramps. A braided or diverging interchange is a two-level, four-way interchange. An interchange
4920-642: The iron ore deposits in the so-called Hallstatt times ( Iron Age , roughly 750 to 500 BC). In all likelihood they came into the area from the Hunsrück . From La Tène times come the Celtic ringwall-girded defensive and sheltering castles which may be found on, among other peaks, the Malberg. Already by La Tène times, Germanic peoples were thrusting in from the east and from the Sieg valley. They came about 380 BC into
5002-603: The lower Wied, pumice gravel in the Neuwied Basin, various mineral springs and, once, brown coal mining. The whole Westerwald region lay under a tropically warm arm of the sea in the Palaeozoic (600 to 270 million years ago). This sea deposited layers of sediments many kilometres thick into the Variscan geosyncline , which were heavily folded in the orogeny that followed. The towns of Siegen and Koblenz on
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#17328016178365084-417: The movement of traffic between two or more roadways or highways , using a system of interconnecting roadways to permit traffic on at least one of the routes to pass through the junction without interruption from crossing traffic streams. It differs from a standard intersection , where roads cross at grade . Interchanges are almost always used when at least one road is a controlled-access highway (freeway) or
5166-649: The municipality on the Lahntal railway ( Koblenz - Limburg -Runkel- Wetzlar - Gießen ) at which only regional trains stop. The town lies within the Rhein-Main-Verkehrsverbund area. In Runkel is found the Johann-Christian-Senckenberg-Schule . This is a primary school , Hauptschule and Realschule with a Förderstufe (a programme for streaming students into the secondary school best suited to their needs). It
5248-501: The newly minted power Prussia . A sovereign Duchy of Nassau existed until it was annexed by Prussia in 1866. Nowadays, the Westerwald is shared among three German federal states: Hesse, North Rhine-Westphalia and Rhineland-Palatinate. The Westerwald is also internationally known in songs, above all in folksongs , and particularly the "Westerwaldlied" ("Westerwald Song"), as well as "Westerwald-Marsch" ("Westerwald March"), "Westerwald, du bist so schön" ("Westerwald, you are so lovely"),
5330-594: The opposite direction of travel and saves one signal phase of traffic lights each. The first DDIs were constructed in the French communities of Versailles ( A13 at D182), Le Perreux-sur-Marne ( A4 at N486) and Seclin ( A1 at D549), in the 1970s. Despite the fact that such interchanges already existed, the idea for the DDI was "reinvented" around 2000, inspired by the freeway-to-freeway interchange between Interstate 95 and I-695 north of Baltimore . The first DDI in
5412-513: The passing lane, so the semi-directional T interchange (see below) is preferred. The interchange of Highway 416 and Highway 417 in Ontario, constructed in the early 1990s, is one of the few directional T interchanges, as most transportation departments had switched to the semi-directional T design. As with a directional T interchange, a semi-directional T interchange uses flyover (overpass) or underpass ramps in all directions at
5494-543: The portmanteau, cloverstack ) is a hybrid of other interchange designs. It uses loop ramps to serve slower or less-occupied traffic flow , and flyover ramps to serve faster and heavier traffic flows. If local and express ways serving the same directions and each roadway is connected righthand to the interchange, extra ramps are installed. The combination interchange design is commonly used to upgrade cloverleaf interchanges to increase their capacity and eliminate weaving. Some turbine-stack hybrids: The turbine interchange
5576-467: The problem of weaving, and due to the semi-directional flyover ramps and directional ramps, they are generally safe and efficient at handling high traffic volumes in all directions. A standard stack interchange includes roads on four levels, also known as a 4-level stack, including the two perpendicular highways, and one more additional level for each pair of left-turn ramps. These ramps can be stacked (cross) in various configurations above, below, or between
5658-455: 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 on-ramp merges both streams of incoming traffic into the left-bound highway. As there is only one off-ramp and one on-ramp (in that respective order), stacks do not suffer from
5740-475: The river Rhine in the German federal states of Rhineland-Palatinate , Hesse and North Rhine-Westphalia . It is a part of the Rhenish Massif ( Rheinisches Schiefergebirge or Rhenish Slate Mountains). Its highest elevation, at 657 m above sea level, is the Fuchskaute in the High Westerwald. Tourist attractions include the Dornburg [ de ] (394 metres), site of some Celtic ruins from La Tène times (5th to 1st century BC), found in
5822-421: The road is extended. US 70 and US 17 west of New Bern, North Carolina is an example. 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 off-ramp. Assuming right-handed driving, to cross over incoming traffic and go left, vehicles first exit onto an off-ramp from
5904-586: The three court districts of Marienberg , Emmerichenhain and Neukirch . The Lordship later fell under the governance of the Lordship or County of Beilstein. The Westerwald lies mostly southwest of the three-state common point shared by Rhineland-Palatinate, Hesse and North Rhine-Westphalia in the districts of Altenkirchen , Lahn-Dill , Limburg-Weilburg , Neuwied , Rhein-Lahn , Rhein-Sieg , Westerwaldkreis and partly in Siegen-Wittgenstein . It
5986-564: The time of the taking of the land arose in formerly pathless areas, taking endings such as –ingen and –heim , like Bellingen and Bladernheim ; these lie on the broad, raised plains in the Upper Westerwald. The Franks built their old settlements on the edge of the Westerwald in the central areas of their districts, to build up slowly and permanently strongholds in the interior. There arose places with names ending in –rode, –scheid, –hahn, –berg, –tal and –seifen . Once clearing settlements had been established and logging for iron ore smelting
6068-627: The town of Runkel. The community of Dehrn was only amalgamated on 1 July 1974 by state law. The outlying centre with the earliest documentary mention is Ennerich, which can prove its existence in 790. The municipal election held on 26 March 2006 yielded the following results: Elections in 2016: The town is linked to the long-distance road network through the Limburg-Süd interchange on the A ;3 ( Cologne – Frankfurt ), 7 km away. Runkel station and Arfurt (Lahn) station both lie within
6150-502: The two interchanging highways. This makes them distinct from turbine interchanges, where pairs of left-turn ramps are separated but at the same level. There are some stacks that could be considered 5-level; however, these remain four-way interchanges, since the fifth level actually consists of dedicated ramps for HOV /bus lanes or frontage roads running through the interchange. The stack interchange between I-10 and I-405 in Los Angeles
6232-540: Was considered a revolutionary design at the time of its construction. A cloverleaf offers uninterrupted connections between two roads but suffers from weaving issues. Along the mainline, a loop ramp introduces traffic prior to a second loop ramp providing access to the crossroad, between which ingress and egress traffic mixes. For this reason, the cloverleaf interchange has fallen out of favour in place of combination interchanges . Some may be half cloverleaf containing ghost ramps which can be upgraded to full cloverleafs if
6314-596: Was designed by Philadelphia engineering firm Rudolph and Delano based on a design seen in an Argentinian magazine. The first cloverleaf in Canada opened in 1938 at the junction of Highway 10 and what would become the Queen Elizabeth Way . The first cloverleaf outside of North America opened in Stockholm on October 15, 1935. Nicknamed Slussen , it was referred to as a "traffic carousel" and
6396-463: Was here 380,000,000 years ago. Parts of this limestone formation are worked in open-pit mining ; near Enspel , a " fossil conservation area" has been instituted, in which institutes from several colleges conduct research and excursions. A few karst caves are of interest to spelaeology and bring about the temporary disappearance and reappearance of the Erdbach. The Westerwald's highest mountain
6478-575: Was in the end the Counts of Sayn, Diez and Wied who managed to take hold of extensive landholdings. Particular importance was achieved by the Counts of Laurenburg, who later called themselves the Counts of Nassau . In the east, the Landgraves of Hesse put it about that they could beat the Archbishopric of Mainz on the battlefield. Moreover, the Counts of Wied, the Counts of Sayn-Wittgenstein and
6560-563: Was named after the German physician and endower Johann Christian Senckenberg. Further primary schools are found in Arfurt, Dehrn, Steeden and Runkel. Students from Runkel also attend the Gymnasien in Limburg and Weilburg. Westerwald The Westerwald ( German pronunciation: [ˈvɛstɐvalt] ; literally 'Western forest') is a low mountain range on the right bank of
6642-403: Was under way, the widespread destruction of the forest began. Between the 6th and 9th centuries came settlement expansion from the old settlements towards the edges, a process still witnessed in placename endings such as –hausen, –hofen, –kirch, –burg or –tal . The last settlement period in the Westerwald began in the 10th century and ended about 1300. Through Carolingian policy and therefore
6724-496: Was yet another family rift when Count Hermann II at Wied drove his younger brother Philipp Ludwig out of the leadership and indeed from the castle. In 1634, the town and the castle were largely destroyed by Count Johann Ludwig Hektor von Isolani's troops in the Thirty Years' War . In 1649, the castle's dwelling buildings were newly built as a residential castle. In the early 18th century, continued French invasions combined with
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