Transportation planning Transportation planning AADT - Annual Average Daily Traffic flow - is a term used mainly in transportation planning, but increasingly for websites. The daily flow of motor traffic (or website hits) is averaged out over the year to give an AADT, a useful and simple measurement of how busy the road (or website) is. ...more on Wikipedia about "AADT"
Accessibility is a general term used to describe the degree to which a system is usable by as many people as possible without modification. Specific focus is placed on users with alternate devices and disabilities. It is not to be confused with usability which is used to describe how easily a thing can be used by any type of user. One meaning of accessibility specifically focuses on people with disabilities, but there are other meanings discussed below. ...more on Wikipedia about "Accessibility"
The first law of geography according to Waldo Tobler is "Everything is related to everything else, but near things are more related to each other." ...more on Wikipedia about "First law of geography"
Induced traffic is a form of induced demand in which more traffic is generated by increasing the capacity of a road network. It is an important concept in transportation planning because it is an argument against widening roads, such as major commuter roads. It is considered by some to be a contributing factor in urban sprawl. ...more on Wikipedia about "Induced traffic"
Land use forecasting undertakes to project the distribution and intensity of trip generating activities in the urban area. In practice, land use models are demand driven, using as inputs the aggregate information on growth produced by an aggregate economic forecasting activity. Land use estimates are inputs to the transportation planning process. ...more on Wikipedia about "Land use forecasting"
Local Transport Plans (LTPs) are an important part of Transportation Planning within the United Kingdom. ...more on Wikipedia about "Local Transport Plan"
Metro, previously known as the Metropolitan Service District, is the regional governmental agency for the Oregon portion of the Portland metropolitan area. It is the only directly-elected regional government in the United States. It performs the following functions: ...more on Wikipedia about "Metro (Oregon regional government)"
A metropolitan planning organization (MPO) is a regional transportation planning body that is required to approve transportation improvement plans for major infrastructure projects, to ensure that they are consistent with federal environmental legislation and that they are fiscally sound. They aim to achieve local consensus on these projects between different levels of government and across jurisdictions. ...more on Wikipedia about "Metropolitan planning organization"
The Metropolitan Travel Survey Archive is a project to store, preserve, and make publicly available, via the internet, travel surveys conducted by metropolitan areas, states and localities. ...more on Wikipedia about "Metropolitan Travel Survey Archive"
Mode choice analysis is the third step in the conventional four-step transportation planning model, following trip generation and trip distribution but before route assignment. Trip distribution's zonal interchange analysis yields a set of origin destination tables which tells where the trips will be made, mode choice analysis allows the modeler to determine what mode of transport will be used. ...more on Wikipedia about "Mode choice"
PTAL stands for Public Transport Accessibility Level. It is a method used in United Kingdom transportation planning to assess the access level of geographical areas to public transport. It can be applied in both urban and rural areas. The result of analyis is a scoring system starting from one, lower numbers represent low levels of public transport accessibility and high numbers, higher levels. This score can be from any number; 1-5, 1-50 or 1 to 500 for example. ...more on Wikipedia about "Public Transport Accessibility Level"
A road diet describes a technique of transportation planning in which the width of a road or lane is narrowed in order to achieve improvements to the transportation system. A leading proponent of road diets is former Florida Bicycle and Pedestrian Coordinator Dan Burden. Typical road diet techniques include narrowing the width of a vehicular travel lane and reducing the number of lanes. Proponents of road diets generally believe a key benefit is lower vehicular speeds and/or improved pedestrian safety; Burden and others have published articles showing that road diets achieve these effects -- often without reductions in vehcile volumes (the number of cars that travel on a given street). ...more on Wikipedia about "Road diet"
Route assignment, traffic assignment or route choice concerns the selection of routes (alternative called paths) between origins and destinations in transportation networks. It is the fourth step in the conventional transportation planning model, following trip generation, trip distribution, and mode choice. The zonal interchange analysis of trip distribution provides origin-destination trip tables. Mode choice analysis tells which travelers will use which mode. To determine facility needs and costs and benefits, we need to know the number of travelers on each route and link of the network (a route is simply a chain of links between an origin and destination). We need to undertake traffic (or trip) assignment. Suppose there is a network of highways and transit systems and a proposed addition. We first want to know the present pattern of traffic delay and then what would happen if the addition were made. ...more on Wikipedia about "Route assignment"
Seating capacity refers to the number of people who can be seated in a specific space, either in terms of the space available, or in terms of limitations set by law. Seating capacity can be used in the description of anything ranging from an automobile that seats two to a stadium that seats over 100,000 people. ...more on Wikipedia about "Seating capacity"
Segregated cycle facilities may consist of a separate road, track, path or lane that is designated for use by cyclists and from which motorised traffic is generally excluded. ...more on Wikipedia about "Segregated cycle facilities"
A traffic analysis zone is the unit of geography most commonly used in conventional transportation planning models. The size of a zone varies, but for a typical metropolitan planning software, a zone of under 3000 people is common. The spatial extent of zones typically varies in models, ranging from very large areas in the exurbs to as small as city blocks or buildings in central business districts. There is no technical reason why zones cannot be as small as single buildings, however additional zones add to the computational burden. ...more on Wikipedia about "Traffic analysis zone"
Transportation planning is the field involved with the siting of transportation facilities (generally streets and highways and public transport lines). ...more on Wikipedia about "Transportation planning"
Travel behavior is the study of what people do over space, and how people use transport. The questions studied in travel behavior are broad, and are very much related to activity analysis and time use studies. ...more on Wikipedia about "Travel behavior"
A travel survey (or travel diary or travel behavior inventory) is a survey of individual travel behavior. Most surveys collect information about an individual (socio-economic, demographic, etc.), their household (size, structure, relationships), their vehicle (age, make, model), and a diary of their journeys on a given day (their start and end location, start and end time, mode of travel, accompanyment and purpose of travel). ...more on Wikipedia about "Travel survey"
Trip distribution (or destination choice or zonal interchange analysis), is the second component (after trip generation, but before mode choice and route assignment) in the traditional 4-step transportation planning (or forecasting) model. This step matches tripmakers’ origins and destinations to develop a “trip table” a matrix that displays the number of trips going from each origin to each destination. Historically, this component has been the least developed component of the transportation planning model. ...more on Wikipedia about "Trip distribution"
Trip generation is the first step in the conventional four-step transportation planning process (followed by trip distribution, mode choice, and route assignment), widely used for forecasting travel demands. It predicts the number of trips originating in or destined for a particular traffic analysis zone. ...more on Wikipedia about "Trip generation"
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Utility cycling encompasses any cycling not done primarily for fitness, recreation such as cycle touring, or sport such as cycle racing, but simply as a means of transport. It generally involves travelling short and medium distances (several kilometres). It includes commuting, going to school, high school or college, making errands, and delivering goods or services. In cities, freight bicycles are capable of competing with trucks and vans particularly where many small deliverys are required. Velotaxis can also provide a public transport service like buses, and taxicabs. ...more on Wikipedia about "Utility cycling"
Wendell Cox is an international public policy consultant. He is the principal of Wendell Cox Consultancy (Demographia), based in the St. Louis (Missouri-Illinois) metropolitan region and editor of three Web sites, Demographia, The Public Purpose and Urban Tours by Rental Car. The Public Purpose has been twice honored as one of the Internet's best transport sites by the prestigious National Journal . ...more on Wikipedia about "Wendell Cox"
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