- Highway Capacity Manual
The Highway Capacity Manual (HCM) is a publication of the
Transportation Research Board(TRB) in the United States. It contains concepts, guidelines, and computational procedures for computingthe capacity and quality of service of various highway facilities, including freeways, highways, arterial roads, roundabouts, signalized and unsignalized intersections, rural highways, and the effects of transit, pedestrians, and bicycles on the performance of these systems.
There are five decades of research behind the HCM. The first edition of the Highway Capacity Manual was released in
1950in about 50 pages. It was the result of a collaborative effort between the Transportation Research Board (TRB) and the Bureau of Public Roads(predecessor to the Federal Highway Administration). The new edition HCM 2000 was released in late 2000. It is the culmination of a multi-agency effort (including TRB, AASHTO, and FHWA) over 15 years to meet the changing analytical needs and to provide contemporary evaluation tools.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Highway capacity manual — Le Highway Capacity Manual (HCM) est un ouvrage publié par le Transportation Research Board (en) et consacré à l étude de la capacité des infrastructures de transport routier. Cet ouvrage est utilisé dans de nombreux pays pour les études de… … Wikipédia en Français
Manual for Streets — In England and Wales, the Manual for Streets provides guidance for practitioners involved in the planning, design, provision and approval of new streets, and modifications to existing ones. It aims to increase the quality of life through good… … Wikipedia
Controlled-access highway — Freeway redirects here. For other meanings, see Freeway (disambiguation). A freeway with a wide grass median (Highway 402 in Canada) A controlled access highway is a highway designed exclusively for high speed vehicular traffic, with all traffic… … Wikipedia
DISCIPLINE, MANUAL OF — ( The Sectarian Document or The Rule of the Community ; Heb. סֶרֶךְ הַיַּחַד, Serekh ha Yaḥad; abbr. 1QS), one of the dead sea scrolls , found in the spring of 1947 near Qumran; now in the Israel Museum s Shrine of the Book in Jerusalem. The… … Encyclopedia of Judaism
Level of service — (LOS) is a measure of effectiveness by which traffic engineers determine the quality of service on elements of transportation infrastructure. Whilst the motorist is, in general, interested in speed of his journey, LOS is a more holistic approach … Wikipedia
roads and highways — ▪ transportation Introduction traveled way on which people, animals, or wheeled vehicles move. In modern usage the term road describes a rural, lesser traveled way, while the word street denotes an urban roadway. Highway refers to a major… … Universalium
Traffic congestion — Traffic jam redirects here. For other uses, see Traffic jam (disambiguation). Traffic congestion on Marginal Pinheiros, near downtown São Paulo. According to Time magazine, São Paulo has the world s worst traffic jams.[1 … Wikipedia
Traffic flow — The mathematical or engineering study of traffic flow, and in particular vehicular traffic flow, is done with the aim of achieving a better understanding of these phenomena and to assist in the reduction of traffic congestion problems.The first… … Wikipedia
High-speed rail — is a type of passenger rail transport that operates significantly faster than the normal speed of rail traffic. Specific definitions include 200 km/h (124 mph) and faster depending on whether the track is upgraded or new by the European Union,… … Wikipedia
Cube voyager — Infobox Software name = Cube Voyager caption = author = developer = Citilabs, Inc. [http://www.citilabs.com] released = latest release version = 5.0.1 latest release date = June 23, 2008 latest preview version = latest preview date = programming… … Wikipedia