Highway Capacity ManualThe Highway Capacity Manual (HCM) is a publication of the Transportation Research Board (TRB) of the National Academies of Sciences, Engineering, and Medicine in the United States.
Levels of serviceLevels of service (LOS) is a term in asset management referring to the quality of a given service. Defining and measuring levels of service is a key activity in developing infrastructure asset management plans. Levels of service may be tied to physical performance of assets or be defined via customer expectation and satisfaction. The latter is more service-centric rather than asset-centric.
Complete streetsComplete streets is a transportation policy and design approach that requires streets to be planned, designed, operated and maintained to enable safe, convenient and comfortable travel and access for users of all ages and abilities regardless of their mode of transportation. Complete Streets allow for safe travel by those walking, cycling, driving automobiles, riding public transportation, or delivering goods.
RoundaboutTraffic intersectionRoundabout in La Crosse, WisconsinMovement within a roundabout in left-hand traffic; note the clockwise circulationMovement within a roundabout in right-hand traffic; note the anticlockwise circulationThe Hotel Indonesia traffic circle in Jakarta, IndonesiaA ring junction in Hemel Hempstead, UKA roundabout, a rotary and a traffic circle are types of circular road in which traffic is permitted to flow in one direction around a central island.
Traffic flowIn transportation engineering, traffic flow is the study of interactions between travellers (including pedestrians, cyclists, drivers, and their vehicles) and infrastructure (including highways, signage, and traffic control devices), with the aim of understanding and developing an optimal transport network with efficient movement of traffic and minimal traffic congestion problems.
Yield signIn road transport, a yield or give waysign indicates that merging drivers must prepare to stop if necessary to let a driver on another approach proceed. A driver who stops or slows down to let another vehicle through has yielded the right of way to that vehicle. In contrast, a stop sign requires each driver to stop completely before proceeding, whether or not other traffic is present.
All-way stopAn all-way stop (also known as a four-way stop, three-way stop, six-way stop, etc. as appropriate) is a traffic management system which requires vehicles on all the approaches to a road intersection to stop at the intersection before proceeding through it.
Asset managementAsset management is a systematic approach to the governance and realization of all value for which a group or entity is responsible. It may apply both to tangible assets (physical objects such as complex process plants or manufacturing plants, infrastructure, buildings or equipment) and to intangible assets (such as intellectual property, goodwill or financial assets).
Smart growthSmart growth is an urban planning and transportation theory that concentrates growth in compact walkable urban centers to avoid sprawl. It also advocates compact, transit-oriented, walkable, bicycle-friendly land use, including neighborhood schools, complete streets, and mixed-use development with a range of housing choices. The term "smart growth" is particularly used in North America.
ScotlandScotland (Scots: Scotland; Scottish Gaelic: Alba) is a country that is part of the United Kingdom, consisting of the northern part of the island of Great Britain and adjacent islands, principally in the archipelagos of the Hebrides and the Northern Isles. In 2022, the country's population was about 5.4 million. Its capital city is Edinburgh, whilst Glasgow is the largest and the most populous of the cities in the country.
PedestrianA pedestrian is a person traveling on foot (walking or running), by wheelchair or with other mobility aids. Streets and roads often have a designated footpath for pedestrian traffic, called the sidewalk in North American English, the pavement in British English, and the footpath in Australian, Indian and New Zealand English. There are also footpaths not associated with thoroughfares; these include rural paths and urban short cuts.
American Association of State Highway and Transportation OfficialsThe American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway design and construction throughout the United States. Despite its name, the association represents not only highways but air, rail, water, and public transportation as well.*As an Amazon Associate I earn from qualifying purchases.