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ITS - Intelligent Transport System - An Overview

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ITS - Intelligent Transport System - An Overview

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A brief overview on the developing trends of Transportation Engineering. Intelligent Transport system uses TECHNOLOGY and existing INFRASTRUCTURAL facilities to provide maximum utility of transport facilities Sincere thanks to FABER MAUNSELL for the material reference and AECOM.COM

A brief overview on the developing trends of Transportation Engineering. Intelligent Transport system uses TECHNOLOGY and existing INFRASTRUCTURAL facilities to provide maximum utility of transport facilities Sincere thanks to FABER MAUNSELL for the material reference and AECOM.COM

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ITS - Intelligent Transport System - An Overview

  1. 1. Intelligent Transportation Systems (ITS) An Overview
  2. 2. ITS Overview What are ITS? −Intelligent Transport Systems (ITS) involve the collection and processing of data: − to provide information; − to advise or control the actions of: − travellers; − drivers; − fleet operators; and − network managers − using computers with multi-media communications and other technology.
  3. 3. ITS Overview What Does ITS Offer? − Allows improved use of existing infrastructure by: − Providing a better understanding of the transport network − Live traffic and travel information – quick response − Providing new methods to manage the network − Improved traffic signals and vehicle priority − Improved intra/inter organisational communications − Providing new services to the public − Travel Information to make journeys easier and more pleasant
  4. 4. ITS Overview
  5. 5. ITS Overview How Does ITS Help? − ITS is a tool to implement transport (and other) policy − Not an end in itself − Not a panacea − ITS can be beneficial − On its own − Supporting other measures − ITS builds on what is there − Not all new − SCOOT UTC − Flexibility to respond to changing priorities
  6. 6. ITS Overview The Underlying Processes Data Sources Central Processing Unit Information Destination Communication Link Communication Link Monitor Acquisition Processing Distribution Information & Management
  7. 7. ITS Overview ITS Applications − Two Main Categories − Urban − Inter-Urban − ITS can also help co-ordinate actions across authorities and networks − Sharing data − Enhanced strategies
  8. 8. Urban ITS Improving Transport Within Towns and Cities
  9. 9. ITS Overview What Challenges Can ITS Address? − Congestion − Poor safety − Integrated services − Accessibility − Environmental impact − Urban regeneration − UTMC systems − Speed limit enforcement − Real time information − Bus Priority systems − Alternative vehicle routes − Parking management What are those ITS solutions?
  10. 10. ITS Overview UTMC − Based on a common database − Can fulfil many objectives − Costs vary depending upon the complexity of the system and its requirements − Designed for interoperability with non proprietary systems − May include, for example − SCOOT Urban traffic control − Variable message signs − Bus priority measures at traffic signals − Real time travel information Urban Traffic Management and Control
  11. 11. ITS Overview Integration - Sharing Data UTMC COMMUNICATIONS NETWORK Operators Terminals Signal Control VMS Public Transport Priority Emissions Monitoring Road Pricing Other Functions as Required Common Database Other Systems & Services Other Users of Information
  12. 12. ITS Overview Data Gathering And Information Dissemination
  13. 13. ITS Overview Data Gathering − Data gathered automatically - in a variety of ways − induction loops − Cameras − CCTV − ANPR − Floating Vehicle Data − Information from RUC schemes and tolling information
  14. 14. ITS Overview Information Dissemination − Information available pre trip and on trip − Information for Fleet managers, Network operators − Delivered in a variety of ways − Website − VMS − Highways Advisory Radio (HAR) − Information to your phone via SMS − Etc
  15. 15. ITS Overview UTMC Demonstration Projects − Early UTMC Systems now operational in Preston, York, Reading and Stratford − Largely a ‘Proof of Concept’ using UTMC specifications − Different focus in different demonstrators – including VMS, SCOOT, Environmental Monitoring, Car Park Guidance, Real Time Information − Sizes of projects also varied − Preston UTMC capital costs rated at £1.5m − York UTMC costs rated at £4m
  16. 16. ITS Overview Speed Limit Enforcement − Old style speed enforcement including Gatso wet film cameras is being superseded − Digital Photography − Eliminates the need to remove and replace film − Cheaper to operate − ANPR systems − Allows “Distance over time” enforcement − IR photography − Encourage compliance − “Secret Signage” − Intelligent Road Studs to measure speeds and advise drivers
  17. 17. ITS Overview ANPR Systems − ANPR:- Automatic Number-plate Recognition Systems − Uses neural net programming for image recognition − High levels of accuracy − Technology used for other purposes such as London’s Congestion Charge System
  18. 18. ITS Overview Distance over time Enforcement − Some speed enforcement measures cause rapid acceleration and deceleration as drivers break in front of cameras − ANPR systems allow vehicles to be identified at different positions on the network − Average speed between two points is measured − Speed across the entire length of road can be enforced.
  19. 19. ITS Overview Speed Warning Devices − ITS provides speed control devices that are not aimed at prosecutions − Speed activated signs, − Displaying registration of speeding vehicle − Maximum appropriate and safe speed may be significantly below signed speed limit − Variable Speed Limit applications now being used
  20. 20. ITS Overview Secret Signage − Speed activated signs − Flash speed limits at drivers exceeding the speed limits − Effective at reducing accidents along dangerous stretches of road − Guidance is to use it as a last resort
  21. 21. Inter-Urban ITS Improving Capacity and Preserving the Asset
  22. 22. ITS Overview ITS on the Motorways and Trunk Roads − No longer able to keep building new roads to accommodate predicted demand − Need new ways to improve capacity − Need to ‘lock in’ capacity provided by new / improved road schemes − Drivers want more information and more reliable journeys − 10% of delays result from road works, 25% from incidents − ITS can advise of congestion and help manage road works and incidents − Safety improvements result
  23. 23. ITS Overview Ramp Metering – Motorway Access Management − Popular in America − Used in Glasgow for access to the M8 (introduced 2004) − Used on the M6 for many years – many new sites planned − Can increases throughput − Can improve journey time reliability − Guidance on deployment now available from the HA
  24. 24. ITS Overview VMS For Strategic Management and Tactical Control − VMS (Variable Message Sign) Display selected information − Can be used for special event signing − Warns of congestion and can advise of alternative route − Different sizes and complexity − Controlled by NTCC (strategic) and RCC (tactical) − Automatic sign settings with signals possible - linked to MIDAS
  25. 25. ITS Overview MIDAS and VMS − MIDAS - Motorway Incident Detection and Automated Signalling − Uses induction loops to monitor traffic flow on strategic road network − Predominantly for queue protection − Automatically sets signals and signs, including variable speed limits − Good response: Average time till the system displays signs appropriate to an incident is routinely before RCC is aware of incident − Signs and signals clears down automatically when flow returns to ‘normal’
  26. 26. ITS Overview Hazard Warning Systems − Companion System − Intelligent Road Studs (IRS)
  27. 27. ITS Overview Companion System − Series of “companion posts” at the side of the carriageway − Radar detector in posts every 0.5 km for automatic activation − Posts can flash in groups – including ‘running lights’ − approaching the driver – to warn of problem − Away from the driver – to encourage throughput − Headways / throughput improves − Secondary incidents avoided
  28. 28. ITS Overview Intelligent Road Studs (IRS) − Deployed on the M8 Between Edinburgh and Glasgow − Part of NADICS (National Driver Information and Control System) − Used for − Guidance in Fog − Surface water detection − Incident detection − Hazard warning
  29. 29. ITS Overview − 51,000 vehicles a day − Cheaper than induction loops − Improved visibility over cats eyes − 1 road stud per 18m makes the route visible for up to 1km ahead − Detector studs every 250m provide information on speed and flow as well as weather conditions − Flashing studs give hazard warning of upcoming incidents
  30. 30. ITS Overview Active Traffic Management − M42 Junctions 3a - 7: Birmingham − Multi-Million pound project − Uses the latest technology − Not just Controlled Motorways A Trial of Different ITS Tools and Operational Regimes M42 J3a-7
  31. 31. ITS Overview Active Traffic Management − Access Control − CCTV Based Incident Detection − Emergency Refuge Areas − Hard Shoulder Management − HADECS Digital Speed Enforcement − MS4 Variable Message Signs capable of displaying pictograms − Possibility of ‘dedicated lanes - including HOV Not just Controlled Motorway…
  32. 32. ITS Overview Active Traffic Management The reality ATM Picture
  33. 33. ITS Overview Active Traffic Management − Installation works now complete − Three Lane Variable Speed Limits from Late 2005 − Four Lane Hard Shoulder Running from Autumn 2006 − Access Control: still to be determined Timetable
  34. 34. ITS Overview Active Traffic Management Advert in Birmingham METRO: Monday 21st November 2005 ATM Website: www.highways.gov.uk/atm Education
  35. 35. ITS Overview Network Advisory Assessment Tool (NASS) − Computer modelling tool developed by IPL − Will be used by ATM Operators in the Control Room − Predicts traffic conditions an hour ahead − Match conditions to a library of traffic patterns − Decide which one of three associated plans will have the most benefit Summary
  36. 36. ITS Overview What is NASS A screenshot… Image
  37. 37. ITS Overview What is NASS − Working for WSP in Basingstoke − Ultimate client is the Highways Agency − Testing Phase B of the system completed − “Offline” testing / proof of concept − Phase C to be installed in the Control Room − FM to develop strategies / plans to address incidents Faber Maunsell involvement
  38. 38. ITS Overview What is NASS? − Used to simulate road conditions and assess Flows, Speed and Journey times across the network with and with proposed Plan − “Graphical” modelling tool available to the engineer / operator − Each “dot” is a car! − Colours show speed of each car TRL SISTM Simulator Used in Phase B Image
  39. 39. ITS Overview NASS Results An example assessment of a proposed plan … Journey times for Junction 3a to 4 Northbound 0 1 2 3 4 5 6 7 8 06:00 07:12 08:24 09:36 10:48 12:00 13:12 Time Journeytimeinminutes Baseline Journey Times Nass Run 1 Journey Times Junctions 3a to 4 Speed-Flow Comparision 0 50 100 150 200 06:00 07:12 08:24 09:36 10:48 12:00 13:12 Time Speed(kph) 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 Flow(vehiclesperhour) Speed1 Speed2 Flow1 Flow2
  40. 40. ITS Overview Integrated use of ITS – The Key to Success − Better management / more efficient operation − Sharing data – collect once, use many times − Standardising equipment and protocols – using the best IT can offer − Reducing cost / achieving operational targets − Dealing with information overload - highlighting what is important − Presentation in a digestible format and there when you need it − Coordinating effort – knowing what is happening and who is dealing with it
  41. 41. ITS Overview REFERENCES: − FABER MAUNSELL – ITS OVERVIEW − AECOM.COM − BUILDING.CO.UK − WASHINGTON.EDU − STUDYMAFIA.ORG − SLIDESHARE REFERENCES
  42. 42. ITS Overview

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