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Advanced Traffic Management System
The Advanced Traffic Management System (ATMS) field is a primary subfield within the Intelligent Transportation System (ITS) domain. The ATMS view is a top-down management perspective that integrates technology primarily to improve the flow of vehicle traffic and improve safety. Real-time traffic data from cameras, speed sensors, etc. flows into a Transportation Management Center (TMC) where it is integrated and processed (e.g. for incident detection), and may result in actions taken (e.g. traffic routing, DMS messages) with the goal of improving traffic flow. The National ITS Architecture defines the following primary goals and metrics for ITS: * Increase transportation system efficiency, * Enhance mobility, * Improve safety, * Reduce fuel consumption and environmental cost, * Increase economic productivity, and * Create an environment for an ITS market. History In 1956, the National Interstate and Defense Highways Act initiated a 35-year $114 billion program that designed an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramp Meter
A ramp meter, ramp signal, or metering light is a device, usually a basic traffic light or a two-section signal light (red and green only, no yellow) together with a signal controller, that regulates the flow of traffic entering freeways according to current traffic conditions. Ramp meters are used at freeway on-ramps to manage the rate of automobiles entering the freeway. Ramp metering systems have proved to be successful in decreasing traffic congestion and improving driver safety. Ramp meters are claimed to reduce congestion (increase speed and volume) on freeways by reducing demand and by breaking up platoons of cars. Two variations of demand reduction are commonly cited; one being access rate, the other diversion. Some ramp meters are designed and programmed to operate only at times of peak travel demand; during off-peak times, such meters are either showing a steady green or are turned off altogether. This allows traffic to merge onto the freeway without stopping. Other r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transportation Engineering
Transportation engineering or transport engineering is the application of technology and scientific principles to the planning, functional design, operation and management of facilities for any mode of transportation in order to provide for the safe, efficient, rapid, comfortable, convenient, economical, and environmentally compatible movement of people and goods transport. The planning aspects of transportation engineering relate to elements of urban planning, and involve technical forecasting decisions and political factors. Technical forecasting of passenger travel usually involves an urban transportation planning model, requiring the estimation of trip generation (number of purposeful trips), trip distribution (destination choice, where the traveler is going), mode choice ( mode that is being taken), and route assignment (the streets or routes that are being used). More sophisticated forecasting can include other aspects of traveler decisions, including auto ownership ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Speed Limits
{{Disambiguation ...
Variable may refer to: * Variable (computer science), a symbolic name associated with a value and whose associated value may be changed * Variable (mathematics), a symbol that represents a quantity in a mathematical expression, as used in many sciences * Variable (research), a logical set of attributes * Variable star, a type of astronomical star * "The Variable", an episode of the television series ''Lost'' See also * Variability (other) Variability is how spread out or closely clustered a set of data is. Variability may refer to: Biology * Genetic variability, a measure of the tendency of individual genotypes in a population to vary from one another * Heart rate variability, a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traffic Optimization
Traffic Optimization are the methods by which time stopped in road traffic (particularly, at traffic signals) is reduced. Need for traffic optimization Texas Transportation Institute estimates travel delays of between 17–55 hours of delay per person per year relating to congestion on the streets. Traffic device optimization hence becomes a significant aspect of operations. Techniques Several techniques exist to reduce delay of traffic. Generally the algorithms attempt to reduce delays (user time), stops, exhaust gas emissions, or some other measure of effectiveness. Many optimization software are geared towards pre-timed coordinated systems. Normally optimization of signals along a road is a challenging and expensive task, because the sources for traffic monitoring have been limited to inductive loops, cameras or manually counting. However, due to recent advances in information technology, portable devices with Bluetooth and Wi-Fi communication are becoming more common, en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgia Navigator
Georgia Navigator (sometimes also as Georgia NaviGAtor) is an Advanced Traffic Management System used in the U.S. state of Georgia. It is operated by the Georgia Department of Transportation (GDOT), and was first activated in April 1996, just before the 1996 Summer Olympics in Atlanta. Metro Atlanta Most of the Georgia Navigator system is installed in metro Atlanta, where at least half of the state's population lives. It includes traffic cameras, changeable message signs, ramp meters, and a traffic speed sensor system. Unlike other ITS deployments around the world, Georgia Navigator almost exclusively uses video detection cameras to gather traffic flow data, as opposed to traditional sensors embedded in the pavement. Additionally, a portion of the system (Georgia 400 and parts of I-16, I-75 and I-85 outside of Atlanta) receives traffic flow information from floating car data gathered by anonymously tracking cell phones. All devices are connected by buried optical fiber, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IRIS (transportation Software)
IRIS (Intelligent Roadway Information System) is an open-source Advanced Traffic Management System (ATMS) software project developed by the Minnesota Department of Transportation. It is used by transportation agencies to monitor and manage interstate and highway traffic. IRIS uses the GPL license. Functional areas * Variable speed limit monitoring and control * Active traffic management and lane control * Congestion Detection * Automated Warning System (AWS) * Road Weather Information Systems (RWIS) / Environmental Sensor Stations (ESS) * Dynamic message sign monitoring and control * Ramp meter monitoring and control * Traffic camera monitoring and control * Vehicle Detector Stations (VDS) for monitoring real-time vehicle speed, flow, density * Toll tags * Incident tracking, monitoring, and storage * Data export: real-time traffic, incidents, configuration, etc. * Integrated mapping Supported hardware devices {{Manual, section, date=March 2020 * DMS ** NTCIP Class A, B, C * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urban Traffic Management And Control
The Urban Traffic Management Control or UTMC programme is the main initiative in the UK for the development of a more open approach to Intelligent Transport Systems or ITS in urban areas. Originating as a Government research programme, the initiative is now managed by a community forum, the UTMC Development Group, which represents both local transport authorities and the systems industry. UTMC systems are designed to allow the different applications used within modern traffic management systems to communicate and share information with each other. This allows previously disparate data from multiple sources such as Automatic Number Plate Recognition ( ANPR) cameras, Variable Message Signs (VMS), car parks, traffic signals, air quality monitoring stations and meteorological data, to be amalgamated into a central console or database. The idea behind UTMC is to maximise road network potential to create a more robust and intelligent system that can be used to meet current and future m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Highway Advisory Radio
A travelers' information station (TIS), also called highway advisory radio (HAR) by the United States Department of Transportation, is a licensed low-powered non-commercial radio station, used to broadcast information to the general public, including for motorists regarding travel, destinations of interest, and situations of imminent danger and emergencies. They are commonly operated by transportation departments, national and local parks departments and historic sites, airport authorities, local governments, federal agencies, colleges and universities, hospitals and health agencies, and for special events and destinations. United States Current regulations and applications In the United States, most Travelers Information Stations (TIS) are licensed by the Federal Communications Commission (FCC), although stations operated by U.S. national parks and others under U.S. federal government jurisdiction are licensed by the National Telecommunications and Information Administration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Weather Information System
A Road Weather Information System (RWIS) comprises automatic weather stations (AWS) (often technically referred to as Environmental Sensor Stations (ESS) as they also cover non-meteorological variables) in the field, a communication system for data transfer, and central systems to collect field data from numerous ESS. These stations measure real-time atmospheric parameters, pavement conditions, water level conditions, visibility, and sometimes other variables. Central RWIS hardware and software are used to process observations from ESS to develop nowcasts or forecasts, and to display or disseminate road weather information in a format that can be easily interpreted by a manager. RWIS data are used by road operators and maintainers to support decision making. Real-time RWIS data is also used by Automated Warning Systems (AWS). The spatial and temporal resolution of a station network can be that of a mesonet or sometimes a constituent network in a network of station networks compris ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Traffic Management
Active traffic management (also managed lanes, smart lanes, managed/smart motorways) is a method of increasing peak capacity and smoothing traffic flows on busy major highways. Techniques include variable speed limits, hard-shoulder running and ramp-metering controlled by overhead variable message signs. It has been implemented in several countries, including Germany, the United Kingdom and the United States. United Kingdom It is currently in operation on the M42 motorway south-east of Birmingham and in Warwickshire. The scheme had initially been criticised by some due to possible safety and environmental concerns, however a Highways Agency report into the first six months of the scheme showed a reduction in the number of accidents from over 5 a month to 1.5 per month on average. it has now been expanded onto other roads following the initial evaluation on the M42. It is seen as a less expensive alternative to road widening. Technology The section of road subject to ATM is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transportation Management Center
Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land ( rail and road), water, cable, pipeline, and space. The field can be divided into infrastructure, vehicles, and operations. Transport enables human trade, which is essential for the development of civilizations. Transport infrastructure consists of both fixed installations, including roads, railways, airways, waterways, canals, and pipelines, and terminals such as airports, railway stations, bus stations, warehouses, trucking terminals, refueling depots (including fueling docks and fuel stations), and seaports. Terminals may be used both for interchange of passengers and cargo and for maintenance. Means of transport are any of the different kinds of transport facilities used to carry people or cargo. They may include vehicles, riding animals, and pack animals. Vehicles may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
