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Intelligent Transportation Systems (ITS) An Overview.

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Presentation on theme: "Intelligent Transportation Systems (ITS) An Overview."— Presentation transcript:

1 Intelligent Transportation Systems (ITS) An Overview

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 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 ITS Overview

5 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 ITS Overview The Underlying Processes Data Sources Central Processing Unit Information Destination Communication Link Communication Link MonitorAcquisitionProcessingDistribution Information & Management

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 Urban ITS Improving Transport Within Towns and Cities

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 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 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 ITS Overview Data Gathering And Information Dissemination

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 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 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 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 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 Londons Congestion Charge System

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 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 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 Inter-Urban ITS Improving Capacity and Preserving the Asset

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 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 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 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 ITS Overview Hazard Warning Systems Companion System Intelligent Road Studs (IRS)

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 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 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 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 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 ITS Overview Active Traffic Management The reality ATM Picture

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 ITS Overview Active Traffic Management Advert in Birmingham METRO: Monday 21 st November 2005 ATM Website: Education

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 ITS Overview What is NASS A screenshot… Image

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 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 ITS Overview NASS Results An example assessment of a proposed plan …

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 ITS Overview Integrated Incident Management

42 ITS Overview

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