INTELLIGENT TRANSPORTATION SYSTEM
ITS graphical user interface showing the Hungarian highway network and its statistics factors |
An intelligent transportation system (ITS) is a complicated software which goals to provide revolutionary offerings referring to distinct modes of transport and visitors control and permit customers to be better informed and make safer, more coordinated, and 'smarter' use of transport networks.
Some of those technologies encompass calling for emergency offerings whilst an twist of fate happens, the use of cameras to enforce site visitors laws or signs and symptoms that mark velocity restriction changes depending on conditions.
Although ITS may discuss with all modes of shipping, the directive of the European Union 2010/40/EU, made on July 7, 2010, described ITS as structures in which information and communication technologies are carried out in the discipline of road transport, along with infrastructure, automobiles and users, and in visitors control and mobility management, in addition to for interfaces with other modes of delivery. ITS may additionally enhance the performance and safety of shipping in a number of situations, i.E. Street shipping, traffic control, mobility, and many others. ITS era is being followed internationally to increase capability of busy roads and reduce journey instances.
Background
Governmental activity inside the area of ITS — is in addition motivated through an growing consciousness on homeland security. Many of the proposed ITS systems also contain surveillance of the roadways, that is a priority of place of birth security. Funding of many systems comes both at once thru native land safety organizations or with their approval. Further, ITS can play a role within the fast mass evacuation of human beings in urban facilities after big casualty occasions such due to a natural catastrophe or chance. Much of the infrastructure and planning concerned with ITS parallels the need for native land protection structures.
In the developing world, the migration from rural to urbanized habitats has advanced in a different way. Many regions of the growing international have urbanised without big motorisation and the formation of suburbs. A small part of the populace can find the money for vehicles, however the vehicles greatly boom congestion in these multimodal transportation structures. They also produce significant air pollution, pose a vast safety danger, and exacerbate emotions of inequities within the society. High populace density could be supported with the aid of a multimodal device of on foot, bicycle transportation, bikes, buses, and trains.
Other elements of the growing global, together with China, India and Brazil remain largely rural but are hastily urbanising and industrialising. In these areas a motorised infrastructure is being developed alongside motorisation of the populace. Great disparity of wealth manner that simplest a fraction of the population can motorise, and therefore the quite dense multimodal transportation machine for the negative is go-reduce by the fantastically motorised transportation system for the rich.
Intelligent transportation technologies
Intelligent shipping structures range in technologies implemented, from basic control structures inclusive of car navigation; traffic signal manipulate systems; box management structures; variable message signs; automatic number plate recognition or speed cameras to monitor packages, together with security CCTV systems, and automated incident detection or stopped automobile detection structures; to more superior packages that combine live statistics and comments from a number of other sources, which includes parking guidance and information structures; climate statistics; bridge de-icing (US deicing) systems; etc. Additionally, predictive strategies are being evolved to allow superior modelling and contrast with historic baseline records. Some of those technology are described inside the following sections.
Wireless communications
Traffic tracking gantry with wireless communication dish antenna |
Various styles of wi-fi communications technology have been proposed for shrewd transportation systems. Radio modem conversation on UHF and VHF frequencies are broadly used for short and long variety verbal exchange within ITS.
Short-variety communications of 350 m may be executed the usage of IEEE 802.11 protocols, mainly WAVE or the dedicated short range communications (DSRC) popular being promoted through the Intelligent Transportation Society of America and the USA Department of Transportation. Theoretically, the variety of these protocols can be prolonged the usage of cellular advert hoc networks or mesh networking.
Longer variety communications use infrastructure networks inclusive of 5G. Long-variety communications using these methods are properly hooked up, however, not like the quick-range protocols, those techniques require widespread and really high-priced infrastructure deployment.
Computationl technologies
Recent advances in vehicle electronics have led to a flow in the direction of fewer, more succesful laptop processors on a car. A standard vehicle inside the early 2000s might have among 20 and one hundred person networked microcontroller/programmable common sense controller modules with non-real-time operating systems. The modern trend is in the direction of fewer, extra steeply-priced microprocessor modules with hardware reminiscence control and real-time operating structures. The new embedded device structures allow for extra state-of-the-art software applications to be applied, which include model-based totally method manage, artificial intelligence, and ubiquitous computing. Perhaps the most critical of these for smart transportation systems is artificial intelligence.
Floating car data/floating cellular data
RFID E-ZPass reader connected to the pole and its antenna (right) utilized in visitors monitoring in New York City by means of using car re-identity method |
"Floating car" or "probe" statistics gathered different transport routes. Broadly talking, four methods were used to gain the raw information:
* Triangulation method. In evolved nations a excessive share of cars incorporate one or greater cellular mobile phones. The telephones periodically transmit their presence facts to the cellular phone network, even when no voice connection is hooked up. In the mid-2000s, tries had been made to apply cell telephones as anonymous site visitors probes. As a automobile moves, so does the sign of any cellular phones that are inside the car. By measuring and analysing network information using triangulation, sample matching or cell-quarter statistics (in an nameless layout), the statistics changed into converted into site visitors glide records. With extra congestion, there are more motors, extra phones, and thus, greater probes. In metropolitan areas, the gap among antennas is shorter and in principle accuracy increases. An benefit of this approach is that no infrastructure wishes to be built alongside the street; handiest the cellular cellphone community is leveraged. But in exercise the triangulation technique can be complicated, in particular in regions wherein the equal mobile cellphone towers serve two or more parallel routes (consisting of a dual carriageway (freeway) with a frontage avenue, a motorway (limited-access highway) and a commuter rail line, two or more parallel streets, or a avenue that is also a bus line). By the early 2010s, the popularity of the triangulation approach turned into declining.
*Vehicle re-identification. Vehicle re-identity strategies require units of detectors established along the street. In this approach, a completely unique serial range for a device inside the car is detected at one location after which detected once more (re-recognized) in addition down the street. Travel instances and speed are calculated by using comparing the time at which a specific device is detected with the aid of pairs of sensors. This can be completed the usage of the MAC addresses from Bluetooth or different gadgets,[6] or the use of the RFID serial numbers from electronic toll collection (ETC) transponders (additionally called "toll tags").
* GPS based methods. An increasing number of cars are prepared with in-automobile satnav/GPS (satellite navigation) structures which have -manner conversation with a visitors statistics provider. Position readings from these cars are used to compute car speeds. Modern techniques might not use committed hardware but as a substitute Smartphone based totally solutions the usage of so known as Telematics 2.0 approaches.
* Smartphone-based rich monitoring. Smartphone-primarily based wealthy monitoring. Smartphones having various sensors can be used to tune site visitors velocity and density. The accelerometer data from smartphones utilized by car drivers is monitored to find out site visitors pace and avenue great. Audio facts and GPS tagging of smartphones permits identity of site visitors density and possible site visitors jams. This changed into implemented in Bangalore, India as a part of a research experimental gadget Nericell.
Floating automobile records technology presents benefits over other techniques of visitors dimension:
* Less high-priced than sensors or cameras
* More coverage (probably such as all places and streets)
* Faster to set up and less renovation
* Works in all weather situations, including heavy rain
Sensing
Technological advances in telecommunications and statistics technology, coupled with ultramodern/modern day microchip, RFID (Radio Frequency Identification), and less expensive wise beacon sensing technologies, have superior the technical abilties as a way to facilitate motorist safety blessings for intelligent transportation systems globally. Sensing structures for ITS are car- and infrastructure-based networked structures, i.E., sensible car technologies. Infrastructure sensors are indestructible (consisting of in-street reflectors) devices which can be installed or embedded in the road or surrounding the street (e.G., on buildings, posts, and signs and symptoms), as required, and may be manually disseminated at some stage in preventive road production renovation or by sensor injection machinery for rapid deployment. Vehicle-sensing systems include deployment of infrastructure-to-car and vehicle-to-infrastructure digital beacons for identification communications and can also employ video automatic number plate recognition or vehicle magnetic signature detection technologies at preferred intervals to increase sustained monitoring of automobiles running in essential zones of world.
Inductive loop detection
Saw reduce loop detectors for car detection buried in the pavement at this intersection as visible by using the rectangular shapes of loop detector sealant at the lowest a part of this photo |
Inductive loops can be located in a roadbed to locate motors as they bypass through the loop's magnetic area. The handiest detectors truly count number the range of vehicles during a unit of time (usually 60 seconds inside the United States) that skip over the loop, while greater sophisticated sensors estimate the rate, length, and class of vehicles and the distance between them. Loops can be positioned in a unmarried lane or throughout a couple of lanes, and that they work with very gradual or stopped automobiles as well as automobiles transferring at excessive pace.
Video vehicle detection
Traffic-flow size and automated incident detection the usage of video cameras is every other shape of automobile detection. Since video detection structures together with the ones used in automatic number plate recongnition do no longer involve putting in any additives immediately into the road floor or roadbed, this type of gadget is known as a "non-intrusive" approach of visitors detection. Video from cameras is fed into processors that examine the changing characteristics of the video photo as cars bypass. The cameras are typically hooked up on poles or structures above or adjacent to the roadway. Most video detection systems require some preliminary configuration to "teach" the processor the baseline history photo. This commonly includes inputting recognized measurements including the space between lane lines or the peak of the digicam above the roadway. A unmarried video detection processor can detect site visitors concurrently from one to 8 cameras, depending at the brand and model. The normal output from a video detection gadget is lane-via-lane car speeds, counts, and lane occupancy readings. Some systems provide extra outputs consisting of hole, headway, stopped-vehicle detection, and wrong-way car alarms.
Bluetooth detection
Bluetooth is an accurate and less expensive manner to transmit role from a vehicle in movement. Bluetooth devices in passing automobiles are detected by using sensing gadgets alongside the street. If those sensors are interconnected they may be capable of calculate tour time and offer statistics for starting place and vacation spot matrices. Compared to other site visitors dimension technologies, Bluetooth size has a few variations:
* Accurate size points with absolute confirmation to offer to the second tour instances.
* Is non-intrusive, that may result in lower-value installations for each permanent and brief websites.
* Is limited to what number of Bluetooth gadgets are broadcasting in a vehicle so counting and other applications are restricted.
* Systems are commonly quick to set up with little to no calibration wished.
Since Bluetooth devices end up more common on board vehicles and with more transportable electronics broadcasting, the amount of statistics accumulated through the years turns into greater correct and valuable for travel time and estimation purposes, extra records can be found in.
It is likewise feasible to degree site traffic density on a street the use of the audio signal that includes the cumulative sound from tire noise, engine noise, engine-idling noise, honks and air turbulence noise. A roadside-set up microphone selections up the audio that contains the diverse car noise and audio signal processing strategies can be used to estimate the visitors nation. The accuracy of this sort of machine compares properly with the opposite methods defined above.
Radar Detection
Radars are hooked up on the aspect of the road to measure visitors go with the flow and for stopped and stranded car detection functions. Like video systems, radar learns its environment during set up so can distinguish between vehicles and different objects. It can also function in conditions of low visibility. Traffic go with the flow radar uses a "facet-hearth" approach to appearance across all visitors lanes in a slender band to matter the range of passing automobiles and estimate traffic density. For stopped automobile detection (SVD) and automated incident detection, 360 degree radar systems are used as they test all lanes alongside big stretches of avenue. Radar is mentioned to have better overall performance over longer stages than different technologies. SVD radar will be hooked up on all Smart motorways inside the UK.
Information fusion from multiple traffic sensing modalities
The information from the extraordinary sensing technologies may be blended in sensible approaches to determine the traffic state accurately. A data fusion based method that makes use of the road aspect accumulated acoustic, photograph and sensor facts has been proven to mix the advantages of the special man or woman techniques.
Intelligent transportation applications
Emergency vehicle notification systems
In 2015, the EU surpassed a regulation required automobile manufacturers to equip all new automobiles with eCall, a European initiative that assists motorists in the case of a collision. The in-car eCall is generated both manually by way of the automobile occupants or routinely via activation of in-car sensors after an twist of fate. When activated, the in-car eCall tool will set up an emergency name sporting each voice and data immediately to the closest emergency factor (generally the closest E1-1-2 public safety answering point, PSAP). The voice call allows the vehicle occupant to speak with the educated eCall operator. At the same time, a minimal set of statistics can be despatched to the eCall operator receiving the voice call.
The minimum set of information incorporates records approximately the incident, inclusive of time, unique location, the course the vehicle turned into visiting, and car identification. The pan-European eCall goals to be operative for all new type-accepted automobiles as a fashionable option. Depending at the producer of the eCall system, it may be cell cellphone primarily based (Bluetooth connection to an in-automobile interface), an integrated eCall device, or a functionality of a broader system like navigation, Telematics device, or tolling tool. ECall is expected to be provided, at earliest, by means of the end of 2010, pending standardization by the European Telecommunications Standards Institute and commitment from massive EU member states inclusive of France and the United Kingdom.
The EC funded assignment SafeTRIP is growing an open ITS machine on the way to enhance avenue safety and provide a resilient communique thru the usage of S-band satellite verbal exchange. Such platform will allow for greater coverage of the Emergency Call Service in the EU.
Congestion pricing pantry at North Bridge Road,Singapore |
Automatic road enforcment
Automatic speed enforcement gantry or lombada eletrônica with floor sensors at Brasilia, D.F. |
A traffic enforcement digicam gadget, consisting of a camera and a car-tracking tool, is used to hit upon and perceive automobiles disobeying a speed limit or some other road felony requirement and routinely price tag offenders primarily based on the license plate quantity. Traffic tickets are despatched by means of mail. Applications include:
* Speed cameras that discover cars visiting over the criminal pace restrict. Many such devices use radar to detect a car's pace or electromagnetic loops buried in every lane of the road.
* Red light cameras that come across cars that cross a stop line or unique preventing region even as a crimson visitors mild is displaying.
* Bus lane cameras that perceive cars traveling in lanes reserved for buses. In some jurisdictions, bus lanes also can be used by taxis or cars engaged in car pooling.
* Level crossing cameras that identify vehicles crossing railways at grade illegally.
* Double white line cameras that perceive vehicles crossing those strains.
* High-occupancy vheicle lane cameras that pick out motors violating HOV necessities.
Variable speed limits
Example variable speed limit sign in the United States |
Recently a few jurisdictions have begun experimenting with variable speed limits that trade with street congestion and different elements. Typically such velocity limits simplest alternate to decline in the course of terrible situations, as opposed to being advanced in true ones. One example is on Britain's M25 motorway, which circumnavigates London. On the most heavily traveled 14-mile (23 km) segment (junction 10 to 16) of the M25 variable pace limits mixed with automatic enforcement were in pressure because 1995. Initial effects indicated financial savings in adventure instances, smoother-flowing visitors, and a fall within the quantity of injuries, so the implementation turned into made permanent in 1997. Further trials on the M25 have been to this point proven inconclusive.
Collision avoidance systems
Japan has set up sensors on its highways to inform motorists that a vehicle is stalled in advance.
Cooperative systems on the road
Communication cooperation on the street consists of vehicle-to-vehicle, car-to-infrastructure, and vice versa. Data available from automobiles are obtained and transmitted to a server for valuable fusion and processing. These information may be used to hit upon occasions such as rain (wiper hobby) and congestion (frequent braking activities). The server techniques a riding advice devoted to a unmarried or a specific organization of drivers and transmits it wirelessly to motors. The purpose of cooperative structures is to apply and plan communication and sensor infrastructure to growth road safety. The definition of cooperative structures in avenue traffic is in step with the European Commission:
"Road operators, infrastructure, automobiles, their drivers and other road users will cooperate to deliver the maximum green, safe, comfortable and relaxed journey. The car-car and automobile-infrastructure co-operative systems will contribute to these objectives past the improvements conceivable with stand-on my own systems."
World Congress on Intelligent Transport Systems (ITS World Congress) is an annual alternate show to promote ITS technology. ERTICO– ITS Europe, ITS America and ITS AsiaPacific sponsor the yearly ITS World Congress and exhibition. Each yr the event takes vicinity in a exceptional location (Europe, Americas or Asia-Pacific).[19] The first ITS World Congress became held in Paris in 1994.
Smart transporatation -new bussiness models
New mobility and smart transportation fashions are rising globally. Bike sharing, car sharing and scooter sharing schemes like Lime or Bird are continuing to gain reputation; electric vehicle charging schemes are taking off in many towns; the related automobile is a growing market section; at the same time as new, smart parking answers are being used by commuters and consumers all around the world. All those new models provide possibilities for solving ultimate mile problems in urban areas.
ITS in the connected world
Mobile operators have become a considerable player in these cost chains (beyond presenting simply connectivity). Dedicated apps may be used to take cell bills, offer records insights and navigation equipment, provide incentives and discounts, and act as a virtual trade medium.
Payments and billing flexibility
These new mobility fashions call for high monetization agility and partner control abilities. A bendy settlements and billing platform enables revenues to be shared quick and easily and presents an common higher customer experience. As properly as a better carrier, users can also be rewarded by way of reductions, loyalty points and rewards, and engaged thru direct marketing.
Europe
The Network of National ITS Associations is a grouping of countrywide ITS hobbies. It was formally announced 7 October 2004 in London. The secretariat is at ERTICO – ITS Europe.
ERTICO – ITS Europe is a public/private partnership selling the development and deployment of ITS. They join public government, industry players, infrastructure operators, customers, countrywide ITS institutions and different organizations together. The ERTICO work programme specializes in projects to enhance delivery protection, security and network efficiency whilst contemplating measures to lessen environmental effect.
United States
In america, every state has an ITS chapter that holds a every year conference to promote and show off ITS technology and thoughts. Representatives from every Department of Transportation (nation, cities, cities, and counties) in the state attend this conference.
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