A two-lane expressway or two-lane freeway is an expressway or freeway with only one lane in each direction, and usually no median barrier . It may be built that way because of constraints, or may be intended for expansion once traffic volumes rise. The term super two is often used by roadgeeks for this type of road, but traffic engineers use that term for a high-quality surface road. Most of these roads are not tolled.
41-545: The Central City Parkway is a four-lane , 8.4 miles (13.5 km) highway in Clear Creek and Gilpin counties in Colorado , United States, that connects Interstate 70 / U.S. Route 6 / U.S. Route 40 (I-70/US 6/US 40), immediately south of Central City (and about 3 miles [4.8 km] east of Idaho Springs ) with Nevadaville Road and Nevada Street in the historic mining town and gambling area of Central City. (Nearly
82-498: A diamond interchange (Exit 243) on I-70/US-6/US 40. At the interchange, CR 314 serves as a frontage road. Heading northward, the parkway abruptly turns left. After passing through several hills in a forested area, the road curves around again and heads northeastward, winding through hills. At the Clear Creek-Gilpin county line, the road turns northward, then northeastward, passing into a more heavily forested area. Through
123-782: A full expressway in 1997. While the full four-lane divided toll expressways are more favored in recent years due to their higher traffic capacity, a few two-lane expressways do exist, such as the Kempas Highway and the North Klang Straits Bypass . These expressways, however, only have partial access control with at-grade intersections commonly available like most other federal and state roads. Nevertheless, these two-lane highways are still classified as "two-lane expressways" as they are maintained by highway concessionaires, namely PLUS Expressways Berhad (Kempas Highway) and Shapadu (North Klang Straits Bypass). Meanwhile,
164-406: A south access highway despite the city of Black Hawk acquiring land in the path of the proposed road. The issue was brought before a Denver grand jury that decided Black Hawk officials had misspent taxpayer money. Central City then sued Black Hawk for $ 100 million; Black Hawk countersued. Prior to dropping the lawsuit, the road was funded by bonds with a 30-year tax levy on business property to pay for
205-490: A super-2 before being upgraded to a full freeway. Similarly, most of Highway 102 in Nova Scotia was a super-2 for three decades before being upgraded. Many super-2 expressways are simply just short transitional segments between surface street and four-lane divided freeways. A super-4 expressway is a multi-lane divided highway with at-grade intersections, although the highway will become a full controlled-access freeway if
246-414: A temporary solution due to lack of funds, as an environmental compromise or as a way to overcome problems constrained from highway reconstruction when there are four lanes or more. If the road is widened, the existing road is typically allocated to traffic going in one direction, and the lanes for the other direction are built as a whole new roadbed adjacent to the existing one. When upgraded in this manner,
287-461: A wide range of topics. The UNECE Statistical Division also provides technical assistance to South-East European, East European, Caucasus and Central Asian countries. The division also provides: UNECE conducted the Fertility and Family Survey in the 1990s in 23 member States, with over 150,000 participants, with hundreds of resulting scientific publications. This activity has hence continued in
328-522: Is a "four-lane undivided freeway". This is much rarer; a current example is U.S. Route 101 in California through Humboldt Redwoods State Park . In Europe, the concept of express road encompasses roads which are classified between a motorway and an ordinary road. It does not necessarily have two lanes. This concept is recognized both by European Union law and under the UNECE treaty. This type of road
369-584: Is composed of 56 member states, most of which are based in Europe, as well as a few outside of Europe. Its transcontinental Eurasian or non-European member states include: Armenia , Azerbaijan , Canada , Cyprus , Georgia , Israel , Kazakhstan , Kyrgyzstan , the Russian Federation , Tajikistan , Turkey , Turkmenistan , the United States of America and Uzbekistan . The commission
410-456: Is expected to become a full freeway, with the transportation authority owning the land necessary for the future adjacent carriageway. At-grade intersections exist but there is sufficient land to replace them with interchanges. In some US states, a super-2 expressway is simply referred to as a super-2, regardless of whether it is fully controlled-access or not. Highway 410 in Ontario was originally
451-500: Is not very standardized, and its geometry may vary from country to country or within a same country. These roads are usually, but not always, limited-access roads . Some European Union regulation considers the high-quality roads to be roads "which play an important role in long-distance freight and passenger traffic, integrate the main urban and economic centres, interconnect with other transport modes and link mountainous, remote, landlocked and peripheral NUTS 2 regions to central regions of
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#1732786981166492-754: The European Central Inland Transport Organization upon its founding. As the commission was established towards the beginning of the Cold War, it faced difficulties in achieving its mandate of economic reconstruction of Europe due to the Iron Curtain: separately the Organisation for European Economic Co-operation was established in 1948 in the west and the Council for Mutual Economic Assistance in 1949 in
533-848: The Hanlon Parkway in Guelph and Black Creek Drive in Toronto, both which have sufficient right of way to allow for interchanges and overpasses to replace the at-grade crossings. When a super-2 expressway is converted to a four-lane divided freeway, conversion artifacts such as double yellow lines, or broken yellow lines in passing zones are usually cleanly bestowed in favor of more consistent road marking for four-lane divided expressways. While most expressways in Japan are four-lane divided expressways with median barriers, some expressways in rural areas are two-lane expressways, such as some sections of
574-608: The Hokkaidō Expressway . The two-lane expressways in Japan are built in the same manner as the ordinary four-lane expressways with grade-separated interchanges and full access control, allowing future conversions to full four-lane divided expressways. The two-lane expressway is not a new concept in Malaysia , as the Kuala Lumpur–Karak Expressway was initially a two-lane toll expressway before being upgraded to
615-799: The South Klang Valley Expressway at Teluk Panglima Garang is a two-lane carriageway making it the first true two-lane expressway in Klang Valley and the second in Malaysia. The first true two-lane expressway with full access control is the section of the Senai–Desaru Expressway between Cahaya Baru and Penawar. Some sections of two-lane freeway can be found on the N1 and the N2 highways. A portion of State Route 80 in
656-478: The Denver area along State Highway 119 , the primary route to the area from I-70, spurring planning for a direct route to Central City from I-70 that began in 1993. In the mid-1990s, the city of Black Hawk backed a proposal for a state-funded widening of Highway 119 including a tunnel that would link to I-70 one mile (1.6 km) closer to Denver than Central City's off-ramp. Central City continued with its plans for
697-713: The European countries, both among themselves and with other countries of the world." It was established at the request of the United Nations General Assembly who called on the Economic and Social Council to create the commission, as well as the Commission for Asia and the Far East , in order to "give effective aid to countries devastated by war." ECE absorbed the function and resources of
738-711: The Hanoi-Lao Cai Expressway is two-laned. The section between Cam Lo and Hoa Lien of the North-South expressway is two-laned. United Nations Economic Commission for Europe The United Nations Economic Commission for Europe ( ECE or UNECE ) is one of the five regional commissions under the jurisdiction of the United Nations Economic and Social Council . It was established in order to promote economic cooperation and integration among its member states . The commission
779-708: The Palais des Nations, an event allowing mayors from the UNECE region to exchange their best practices on urban development, housing and land management. UNECE is the first UN Regional Economic Commission to implement such an initiative that facilitates the cooperation between the UN, Member States and cities. The UNECE Transport Division has been providing secretariat services to the World Forum for Harmonization of Vehicle Regulations (WP.29). In addition to acting as secretariat to
820-592: The UNECE region and beyond through the Conference and its Bureau, and the Database of International Statistical Activities. The Statistical Division develops guidelines and training materials on statistical methodology and practices, in response to demands from member countries. It works with different groups of specialists from national and international statistical organizations, and organizes meetings and online forums for statistical experts to exchange experiences on
861-548: The Union". According to this same regulation "High-quality roads shall be specially designed and built for motor traffic, and shall be either motorways, express roads or conventional strategic roads." Eurostat and the United Nations Economic and Social Commission for Western Asia define an express road as a limited-access road that has signs reserving the roadway for specific categories of motor vehicles and that prohibits stopping and parking. Two-lane freeways are usually built as
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#1732786981166902-619: The World Forum, the Vehicle Regulations and Transport Innovations section serves as the secretariat of the Administrative Committee for the coordination of work, and of the administrative/executives committees of the three agreements on vehicles administered by the World Forum. Among other things, ITC has produced: The World Forum services three UN Agreements: The UNECE Statistical Division provides
943-402: The drive, the road continues to wind between northward and westward before entering the vicinity of Central City , where it meets its terminus at a T intersection with Nevadaville Road. The roadway continues northeast as Nevada Street. Limited-stakes gambling was approved by Colorado voters in 1990 in the towns of Central City, Black Hawk and Cripple Creek . Black Hawk lies a mile closer to
984-578: The east. The work of the commission had to concern itself only with questions that were of common interest to East and West, as to not cause confrontation. However, since the fall of the Soviet Union, the economic commissions of the United Nations have been expanding their activities in the former Soviet republics. The following are the member states of the commission, along with their date of admission: The concern of UNECE with problems of
1025-689: The energy sector in the region. The Expert Group on Resource Management created the United Nations Framework Classification for Resources , the first widely accepted natural resource management system for classifying, managing, and reporting energy, mineral, and raw material resources in the world. The United Smart Cities programme is a joint effort between UNECE and the Organization for International Economic Relations (OiER). Numerous private business entities and other international and European agencies support
1066-458: The entire route is within the city limits of Central City.) Opened on November 19, 2004, the Parkway provides direct access to Central City. The length of the Parkway can be traveled in about twelve minutes. As part of the opening ceremonies in 2004, 1996 Indianapolis 500 winner, Buddy Lazier , made the trip from I-70 to Central City's historic downtown in three minutes. The parkway begins at
1107-516: The environment dates back at least to 1971, when the group of Senior Advisors to the UNECE governments on environmental issues was created which led to the establishment of the Committee on Environmental Policy, which now meets annually. The Committee provides collective policy direction in the area of environment and sustainable development, prepares ministerial meetings, develops international environmental law and supports international initiatives in
1148-402: The exchange of information on forest working techniques and training of forest workers; periodic surveys of the long-term outlook on forests; technical work on the rational use of wood; reviewing forest product markets; and share experiences on forest and forest sector policy. In 1947, UNECE set up a Panel on Housing Problems, which later evolved into the Committee on Human Settlements and after
1189-584: The form of the Generations and Gender Programme . The Sustainable Energy Division supports the UN's energy program, including security of energy supply, economics, and environmental protection, in the areas of energy efficiency , renewable energy, clean electricity, natural gas, coal, and resource classification. It is the secretariat responsible for Committee on Sustainable Energy and various expert groups supporting access to affordable and clean energy for all, as well as help reduce greenhouse gas emissions of
1230-514: The international community, to harmonize environmental conditions and policies throughout the region and to stimulate greater involvement of the public and environmental discussions and decision-making. CEP is the overall governing body of UNECE environmental activities. The committee's work is based on several strategic pillars: The first task of UNECE after the Second World War was to coordinate reconstruction effort in Europe. Timber
1271-442: The intersections are replaced with interchanges. A super-4 may have been a super-2 that has been twinned, although such instances of super-4 intermediaries are rare as super-2s are often upgraded right away to full freeways. Highway 40 in Ontario is a super-4 expressway between Highway 402 and Wellington St., and from Indian Rd to Rokeby Line. The remaining sections of Highway 40 are super-2 expressways. Other super-4 expressways include
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1312-565: The programme, including Environment Agency Austria (EAA), the Royal Institution of Chartered Surveyors (RICS), UN-Habitat , and the International Society of City and Regional Planners (ISOCARP). The programme promotes areas of strategic smart city policy and development. The key focus areas as detailed by the programme are: The ECE secretariat has been characterized as a "strong" secretariat. The ECE secretariat
1353-525: The reform in 2005/2006 into the Committee on Housing and Land Management. The committee is an intergovernmental body of all UNECE member States. It provides a forum for the compilation, dissemination and exchange of information and experience on housing, urban development, and land administration policies; and in areas such as Birmingham, a more fiscal issue-UK. In 2020, the CUDHLM created the Forum of Mayors at
1394-460: The region. CEP works to support countries to enhance their environmental governance and transboundary cooperation as well as strengthen implementation of the UNECE regional environmental commitments and advance sustainable development in the region. Its main aim is to assess countries' efforts to reduce their overall pollution burden and manage their natural resources, to integrate environmental and socioeconomic policies, to strengthen cooperation with
1435-423: The road becomes a typical freeway. Many two-lane freeways are built so that when the road is upgraded to a proper divided freeway, the existing overpasses and ramps do not need reconstruction. A super-2 expressway is a high-speed surface road with at-grade intersections, depending on the common usage of the term expressway in the area. By this definition, Super-2s can be considered the first stage of project which
1476-568: The road. Six months before the parkway opened, a report issued by gambling industry consultant Gaming & Resort Development predicted the road would be more beneficial to Black Hawk than to Central City. Central City's gaming revenues have substantially increased since the road's opening in November 2004 but have not reached industry and city projections. Since the Parkway's opening, three casinos in Central City have opened and two, under
1517-837: The same ownership, have closed (The Teller House in July 2005 and Scarlet's Casino in September 2006). Century Casinos opened in July 2006. Between I-70 and Central City, there is only one public exit road from the Central City Parkway: the Hidee Mine Road at mile 6.3. This road leads to the Hidee Gold Mine , which offers mine tours and gold panning, and is open to the public. [REDACTED] U.S. Roads portal [REDACTED] Colorado portal Two-lane expressway A somewhat related concept
1558-497: The secretariat for the Conference and its expert groups, and implements the statistical work programme of UNECE. The Conference brings together chief statisticians from national and international statistical organizations around the world, meaning that the word "European" in its name is no longer an accurate description of its geographical coverage. The Statistical Division helps member countries to strengthen their statistical systems, and coordinates international statistical activities in
1599-661: The vicinity of Bisbee is a two-lane expressway with an interchange at West Boulevard and Tombstone Canyon Road ( Historic US 80 ). A 1.8 mile section of the State Road 912 freeway in East Chicago, Indiana is 2 lanes. This 2-lane section includes a new bridge over the Indiana Harbor and Ship Canal that opened in 2020. The original bridge that was closed in 2009 and demolished in 2012 carried 6 lanes of traffic. The section from Yen Bai City to Lao Cai City of
1640-580: Was crucial for construction, and energy, but the forests had been heavily overcut and production and trade were at a standstill. The ECE Timber Committee emerged from the International Timber Conference held in 1947 in Mariánské Lázně in the former Czechoslovakia. The main pillars of the committee's activities have been: the collection and publication of the best available statistics on forests, wood production and trade;
1681-596: Was first proposed in London in the summer of 1946 by the Temporary Subcommission on the Reconstruction of Devastated Areas. The commission was established by the Economic and Social Council on 28 March 1947 in order to "Initiate and participate in measures for facilitating concerted action for the economic reconstruction of Europe," as well as to "maintain and strengthen the economic relations of