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Enhancing Traffic Management with Intelligent Transport Systems

Explore the implementation of advanced ITS in Hertfordshire for efficient traffic control and monitoring. Learn about key components like UTC renewal, AVL/RTPI, ANPR, VMS, CPGS, and CCTV for improved transportation systems.

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Enhancing Traffic Management with Intelligent Transport Systems

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  1. INTELLIGENT TRANSPORT SYSTEMS Presentation by Chris Gladwyn Traffic Control Systems Hertfordshire Highways

  2. Aims and Objectives • Integrate new and existing Network Management Systems in Hertfordshire • Future proof technology • Actively manage HCC Network • Integrate HCC, HA & neighbouring LA strategies • Build Integrated Traffic Control Centre

  3. Hertfordshire ITS Projects • Urban Traffic Control system (UTC) renewal • Urban Traffic Management & Control (UTMC) common database • Automatic Vehicle Location (AVL) / Real Time Passenger Information (RTPI) • Automatic Number Plate Recognition (ANPR) • Variable Message Signs (VMS) • Car Park Guidance Signs (CPGS) • Closed Circuit Television (CCTV)

  4. UTC Renewal Existing instation system • Supplied by Peek Traffic Ltd in 2000 • Owned by HCC • Identified as life expired • System unstable, 85 software patches • Does not have functionality to meet future aspirations and LTP objectives

  5. Overview of UTC Architecture

  6. UTC Renewal Outstations • Replace existing legacy Outstation Transmission Units (OTU’s) • Bring compliance with UTMC principles • Embracing the efficiencies of IP transmission

  7. UTC Renewal - Benefits • The UTC system runs SCOOT (Split Cycle Offset Optimisation Techniques) software. • SCOOT achieves an average saving in delay of about 12% over validated Fixed Time Plans. • Additional savings of 3% per year are likely for every year that a Fixed Time Plan ages. • Communication costs reduced by approx. 60%

  8. UTC Renewal Timescales • Contract award September 2010 • System delivered February 2011

  9. UTMC Common Database (CDB) CDB is the UTMC central hub, enabling • A coordinated, centralised approach to monitoring and managing traffic • A traffic and travel website • Distribution of transport information via the media (radio/TV/Smart phones) • A consolidated, single user interface • Close co-ordination with adjoining Local Authorities and the Highways Agency Contributes to a number of LTP objectives

  10. Existing HCC System Architecture

  11. Overview of UTMC Architecture

  12. UTMC CDB – Interdependencies • Common Database interfaces with all ITS Systems • Web portal may require links to corporate networks • Council staff may want access to functions of the CDB

  13. UTMC CDB Time Scales Contract award October 2010 System delivered February 2011

  14. AVL/RTPI - Objectives • Provide reliable real-time information to passengers through a variety of systems and communications media • Provide a voice and data communications platform • Enable bus priority at traffic signals • Provide a vehicle location and control system • Be compatible with AVL/RTPI systems operating in other counties and with other transport providers • Enhance passenger security • Provide information to drivers to aid timekeeping

  15. AVL/RTPI Architecture

  16. AVL/RTPI - Benefits • Modal shift • +1% increase in passengers across London • +5% in Bristol and Liverpool • +8% in East Kent • +28% Leicester • Benefits • 9 seconds reduction of delay per bus per junction in London at VA sites with traditional priority • 10 to 20+ seconds reduction of delay per bus per junction in Leeds at VA sites with intelligent priority • 18% reduction in journey time on a route in Gateshead

  17. AVL/RTPI Time Scales Contract award March 2010 System delivered February 2011-2016

  18. Automatic Number Plate Recognition (ANPR)Journey Time Monitoring System (JTMS) • Journey Time Measurement using ANPR provides traffic data by identifying the same vehicle at two or more points in a road network from the recognition of the vehicle's number plate. • ANPR cameras are strategically deployed to capture number plates along road networks providing real time monitoring, which in turn formulates travel times along the road network.

  19. ANPR/JTMS - Benefits • Live monitoring of the effectiveness of traffic management schemes • Early warning of traffic incidents • Improve journey time reliability • Reduce disruption caused by major incidents • Provide alternative route advice to minimise the effect of congestion and incidents • Minimise delays due to roadworks • Influence road users' decisions before they set out on a journey about route, time and means of travel • Reduce the effects of congestion

  20. Variable Message Signs (VMS) • Provision of information in a timely manner • Local incident management • Reduction in delay • Supporting diversion routes and controlling traffic on these routes

  21. Car Park Guidance Signs • Excess queues at car parks; • Congestion on the surrounding road network; • Poor air quality Provides greatest benefit when demand for off-street parking is approximately equal to supply

  22. CCTV • Incident detection and management • Provide traffic information through various media services • Manage traffic in urban areas through the use of an UTMC system • Monitor weather conditions of highway

  23. INTELLIGENT TRANSPORT SYSTEMS Questions ? Thank you

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