1. Inter Urban ITS ITS on the Trunk Road Network November 2006

2. The Challenges

3. The benefits of Inter-Urban ITS, 23rd November 2006 The Trunk Road Network  The Highways Agency has 7,754 km of road  Valued at over £65 bn  Caries a third of all road traffic  Caries two thirds of all heavy freight traffic  More than 170 bn vehicle km travelled across it each year. The Highways Agency’s Assets

4. The benefits of Inter-Urban ITS, 23rd November 2006 The Highways Agency  Now no longer a primarily network builder  Primarily now a network operator  Stated objectives include:  Reducing Congestion and improving reliability  Improving road safety  Respecting the environment  Seeking feedback from customers

5. The benefits of Inter-Urban ITS, 23rd November 2006 How they use ITS  Reducing Congestion and improving reliability  Improving road safety  Respecting the environment Image 1 Image 2

6. The benefits of Inter-Urban ITS, 23rd November 2006 Why Congestion?  Capacity Less than Demand  High Demand reduces Capacity  Flow Breakdown

7. The benefits of Inter-Urban ITS, 23rd November 2006 High Occupancy Vehicle Lanes  Part of new build  Intended to “Lock in” Capacity benefits  Part of respect for the environment  Becoming feasible through new technology  Tell people apart from dummies  Differentiate between human and other animals  Be able to do this through fog, rain and glare

8. The benefits of Inter-Urban ITS, 23rd November 2006 High Occupancy Toll Lanes  Further development of the HOV lane  Variable tolls  Allows better use of road space  Both HOV lanes and HOT lanes are subject to a lot of criticism

9. The benefits of Inter-Urban ITS, 23rd November 2006 Smart Tolling  “Smart Card” Technology  Speeds throughput  Reduces revenue costs  Real-time Information available

10. The benefits of Inter-Urban ITS, 23rd November 2006 Ramp Metering  Primarily used in the USA  Keep highway traffic free flowing  Controlled access to the motorways

11. The benefits of Inter-Urban ITS, 23rd November 2006 Traffic Control Centres  On the HA Network this is the NTCC  Monitoring and Reactions  Uses MIDAS  New developments NASS  React through VMS and Traffic Officers and Police

12. The benefits of Inter-Urban ITS, 23rd November 2006 And the future…  Cooperative Vehicle Highway systems  In Vehicle technology  In road technology  Benefits anticipated for speed, capacity and safety  Major investment needed Now have HA Fibre Optic Network

13. The benefits of Inter-Urban ITS, 23rd November 2006 Improving Safety on the road network  One of the Department for transport’s objectives is to:  “reduce the number of people killed or seriously injured in Great Britain in road accidents by 40%, the number of children killed or seriously injured by 50% (all roads) and 10% reduction in the rate of slight casualties by 2010, compared with the 1994-98 average”

14. The benefits of Inter-Urban ITS, 23rd November 2006 Active Traffic Management, Controlled Motorway and MIDAS  Controlled Motorway on the M25 began in 1996  The ATM section on the M42 opened in 2006 Active Control and Management of the Network

15. The benefits of Inter-Urban ITS, 23rd November 2006 What does Controlled Motorway and ATM include  Variable Speed Limits  Hard Shoulder Running  Incident warning and management

16. The benefits of Inter-Urban ITS, 23rd November 2006 The Benefits of Variable Speed Limits  Helps prevent flow breakdown  Helps stop rear end collisions  Reduces stop/start traffic flow  Rigorous speed enforcement  Improved journey time  Safety benefit  Fuel economy savings  Safety benefit

17. The benefits of Inter-Urban ITS, 23rd November 2006 Issues to consider:  Merging and Diverging, length between junctions  Tidal Flow  Number of lanes

18. The benefits of Inter-Urban ITS, 23rd November 2006 Daily flow levels Distribution of Traffic on the M42 Chart from Excel

19. The benefits of Inter-Urban ITS, 23rd November 2006 Comparison of After Data with the before data

20. The benefits of Inter-Urban ITS, 23rd November 2006 Benefits from the M25  Not all effects are positive  Benefits are dependant on flow levels and congestion  Most significant benefits are from Safety Value per year in 2002 prices (not discounted) Clockwise CarriagewayAnticlockwise CarriagewayBoth Carriageways Journey Time improvement -£52,862,826£51,067,334-£1,795,492 Accident reduction£52,168,177£51,552,722£103,720,899 Fuel Consumption Cost savings £13,487,016£9,380,136£22,867,152 £12,792,367£112,000,192£124,792,559

21. The benefits of Inter-Urban ITS, 23rd November 2006 Results for the cost benefit analysis on the M25 Clockwise CarriagewayAnticlockwise Carriageway Both Carriageways BCR 30-years 1.247.044.14 BCR 60-years 1.5011.516.51  These figures illustrate the safety benefits  Controlled motorway has a very respectable benefit : cost ratio  Technology needs to be correctly applied and tuned

22. The benefits of Inter-Urban ITS, 23rd November 2006 Controlled Motorway  Government Approach: (WEBTAG)  Assess wide range of benefits and disbenefits in the following categories:  Environment  Safety  Economy  Accessibility  Integration  Produce a comparison table called an Appraisal Summary Table (AST)  See: www.webtag.org.uk for detailswww.webtag.org.uk Scheme Assessment: WEBTAG

23. Any Questions…

24. The benefits of Inter-Urban ITS, 23rd November 2006  Any further details needed?  I can be contacted at:  James.perrott@fabermaunsell.com  Telephone: 0121 262 6076