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
Potential applications which can be facilitated through the implementation of the UTMC CDB, to meet the councils’ objectives include:
Provide a coordinated, centralised approach to effectively monitoring and manage traffic incidents and congestion in the region.
A traffic and travel website, which collates and disseminates information from all council owned traffic management systems, as well as from external parties such as public transport operators to allow the travelling public to make informed decisions about when and how they travel.
Distribution of transport information via the media (Radio/TV).
Support for the implementation of the Integrated Transport Control Centre, by providing a consolidated, single interface to allow users to be able to incorporate and access all monitoring, informing and controlling tools.
Enable close co-ordination with adjoining Local Authorities and the Highways Agency to facilitate smooth journeys across urban/inter-urban boundaries.

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

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 ?
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