'Cost%20effective%20measures%20and%20planning%20of%20traffic%20safety - PowerPoint PPT Presentation

About This Presentation
Title:

'Cost%20effective%20measures%20and%20planning%20of%20traffic%20safety

Description:

... specific village under investigation is taken into ... Planning cost: Only costs after decision made. Land use costs: land value, cost for buying process. ... – PowerPoint PPT presentation

Number of Views:120
Avg rating:3.0/5.0
Slides: 67
Provided by: pereri
Category:

less

Transcript and Presenter's Notes

Title: 'Cost%20effective%20measures%20and%20planning%20of%20traffic%20safety


1
'Cost effective measures and planning of traffic
safety
  • Planning philosophies and preferences
  • Use of CBA in Sweden/Europe
  • Physical planning
  • Four step principal
  • Speed Limit Review

2
Planning philosophies
  • More complex
  • Rail investments road development
  • Industries and villages
  • Conditions for living and welfare
  • Caused by many individual reasons and decisions
    not by strategic planning

3
Processes of decisions
  • Extreme 1 Rational perspective
  • Extreme 2 Wagging the way forward
  • Visionary Main problem and future status in
    clear picture (Vision Zero)
  • Planning Defining goals from problems to solve.
    Goals define valuations.
  • Consensus oriented Acceptance through
    discussions with parties goals, problems

4
Visionary Visionary Planning Planning Planning
Consensus Consensus Consensus Visionary
European cities use of different decision models.
Source EU project PROSPECTS Consider this!
Russia model today and in the future? Russia and
Tatarstan/Kazan?
5
Welfare preferences5 children have found a
puppet in a basement.
Consider this! Who should have the puppet?
  • 1) He/she fixed the key and that made it possible
    to get into the basement. Compensation after
    work/Aristoteles
  • 2) He/she is the strongest of them all and if
    he/she dont get the puppet she will start a
    fight, which she probably will win. Negotiation
    positioning/Hobbes
  • 3) He/she spotted the puppet first and thats why
    she must have it. Practical philosofic
    arguments/Locke, Nozick
  • 4) It means most for he/she, because the
    collection will be completed then. Utility
    maximization principle
  • 5) He/she is underprivileged and has no puppet at
    all. Maximize-Minimize principle/Rawls

6
Cost Effective Measures and Planning of Traffic
Safety in Sweden
  • Beauty Contest!
  • Cost Benefit Analysis Method
  • Four step principal
  • Physical planning
  • Review of Speed Limits in Sweden

7
Goals in transport policy (1)
  • The overall goal of transport policy in
    accordance with the Swedish Parliaments decision
    in 1998
  • to ensure a socio-economically efficient
    transport system that is sustainable in the long
    term for individuals and the business community
    throughout the country.

8
Goals in transport policy (2)
  • This goal is divided into six subsidiary goals
  • An accessible transport system The transport
    system is to be designed so as to meet the basic
    transport needs of individuals and the business
    community.
  • High transport quality The design and function
    of the transport system is to permit a high level
    of transport quality for individuals and the
    business community.
  • Positive regional development The transport
    system should promote a positive regional
    development, both by evening out differences in
    the potential of various parts of the country to
    develop, and by counteracting the drawbacks of
    long transport distances.

9
Goals in transport policy (3)
  • This goal is divided into six subsidiary goals
  • Safe traffic The long-term goal for road traffic
    safety is for nobody to be killed or seriously
    injured as a result of traffic accidents. The
    design and operation of the road transport system
    should be brought into line with the requirements
    that this goal entails.
  • A good environment The design and performance of
    the transport system should be adapted to the
    requirements for a good and healthy living
    environment for everyone, where natural and
    cultural environments are protected against
    damage. Good management of land, water, energy
    and other natural resources is to be promoted.
  • A gender-equal road transport system The road
    transport system is to be designed to fulfil the
    transport needs of both women and men. Women and
    men are to be offered an equal opportunity to
    influence the creation of the transport system,
    its design and management, and their values are
    to be equally important.

10
Since 1997
  • In October 1997 the Swedish Parliment adopted a
    Vision Zero approach as a basis for Swedens
    long-term road safety objectives.

11
Beauty Contest!
  • The most effect per invested capital
  • killed and seriously injured persons / investing
    capital cost (euro)
  • Priority to maximize number of saved persons for
    a given budget.
  • Effects and impacts have been collected and
    documented in a knowledge based document used by
    all planning in road sector.
  • Equivalent for other transport mode system

12
Estimate Effect examples
  • Speed reduction - (speed after/speed before)4,5.
    If speed is reduced from 100 km/h to 90 km/h it
    will give about 38 reductions for expected
    fatalities.
  • A pedestrian sidewalk can give somewhere between
    40-80 percent reduction, depending on if the
    sidewalk is on both sides of the road or on one
    side if its completely separated from vehicles
    or partly separated.
  • Steel guard rails and/or removing obstacles from
    roadside can reduce the severity of accident
    outcome with 15-60.


13
Estimate effects example
  • Pedestrian crosswalks are estimated to about
    20-30 , with island and footpath extension and
    fences up to 50.
  • Medians give a reduction for pedestrian with
    about 20-25 and for head on collisions almost
    100.
  • Improved visibility and guidance, including
    illumination is estimated to give an accident
    reduction about 20-30. Illumination can even
    give a bigger reduction, up to 65, if a black
    spot is found where accidents appear in dark
    hours.
  • Important that the situation in the specific
    village under investigation is taken into
    consideration when estimating the effects.


14
Estimate investment costs
  • Calculate construction costs per unit of typical
    road construction works
  • Calculate costs for the designed modules
  • Determinate costs for maintenance and costs for
    individual measures, land aquisation, ..


15
Presentation about the CostBenefit
Analysis for the Road-Safety-Measure project

16
CostBenefit Analysis
  • Weighing the total expected costs against the
    total expected benefits of one or more actions in
    order to choose the best or most profitable
    option


17
HEATCO
  • Developing Harmonised European Approaches for
    Transport Costing and Project Assessment.
  • Project in 6 frame programme 2002-2006.
  • Project owner European Commission, DGTREN
  • Final version report 17 maj 2006.
  • Consortium
  • IER University of Stuttgart Tyskland, University
    of Bath UK, EIT University of Las Palmas Spain,
    COWI Denmark, BUTE Hungary, ISIS Italy, Ecoplan
    Schweiz, TNO Dutch Nederland, VTI Sweden, SWECO
    Norway, ITS Leeds UK, Herry Consult Germany, NTUA
    Greece and Sudop Tjeckien.

18
  • Evaluation methodes of projects with several
    countries involved
  • Evaluation of EU fonds projects
  • Harmonizing of assessment with one framework.
    (Some countries without consistent method).
  • Purpose Guidelines based on criterias
    socioeconomic efficiency, open and clear studies,
    and support from member countries decision
    makers.

19
Decision criterias
  • NPV (net present value) (positiverecommend)
  • BCR (benefit cost ratio) (gt0 recommend)
  • RNPSS (ratio of NPV and public sector support)
    (gt1recommend, valid for priorities with limited
    budget)
  • FYRR (first year rate of return) valid for
    decison of optimal opening year for a project.

20
  • Real changes during project lifetime years
  • Factor prices/market prices
  • No monetized effects
  • Lifetime period
  • Risk and uncertainty
  • Discounting
  • Allocation of effects
  • Marginal Cost of Public Funds

21
  • Values of Time
  • Values of risk and accidents
  • Noice
  • Air pollutions
  • Climate gases
  • Other specific situations of environmental
    aspects
  • Construction cost
  • Planning cost Only costs after decision made
  • Land use costs land value, cost for buying
    process.
  • Cost for trafficants during activities
    (Trafficant extra cost) Estimate effect and
    value as ordinary time value
  • Maintenance costs

22
Accident data
  • We assume that reported fatalities are probably
    most
  • accurate. With the figures of fatalities as a
    starting point
  • one could expect the number of severe injured to
    be
  • about 3 times the fatalities and light injured
    and damage
  • only about 8 times the fatalities

23
Accident cost in European countries related to
GDP (Gross Domestic Product)
24
Consider this!!
  • A positive CBA-ratio is an information to the
    decision maker that the project is positive for
    the society.
  • The non monetized effects can on the other hand
    be positive (better) or negative (worse) for the
    society.
  • How to prioritize between investment package A,
    B, C and D?

Non monetized effect better Non monetized effect worse
CBA Positive A C
CBA Negative B D
25
(No Transcript)
26
Typical costs - if made right from the beginning
Current costsin EURO Costs for highest safety Increase Effectiveness
Road 1500 1,515 (barriers) 1 90
Vehicle 20,000 20,002 (SBR) 0.01 20
Vehicle 20,000 20,020 (alcohol) 0.1 20
Vehicle 20,000 20,200 (speed) 1 20
27
MID-BARRIERS / CENTRE GUARD RAILS
  • A centre guard rail prevents head-on collisions,
    thereby making a rural road of standard width
    considerably safer.
  • Appr. 1000 km in 2004
  • Goal 2000 km in 2007
  • Test started in 1998
  • with 6 projects
  • AADT 4000 - 22000

28
What purpose have socioeconomic analysis and
calculations had so far, and how should it be
tomorrow?
  • Its obvious that decisions divert from results.
    This goes for beneficial and non-beneficial
    projects!
  • Rail tunnel in Malmoe (NPV/Clt0)
  • Road plans in Stockholm (NPVlt0)
  • A number of rail projects (bothnia stretch,
    Hallands tunnel) (NPV/C lt 0)
  • Bypass Sveg (NPV/C 6)
  • Russia projects?

29
Why is it like that? That decisions divert from
results?
  • Building Monument Monument thinking allied with
    happy calculations (too low costs and
    overindulgence of benefits in relation to facts)
    make it easier to get decisions through. (english
    channel, big belt bridge, ..)
  • Distribution of benefits and costs, and different
    groups of interests power on decisionmaking. A
    concentrated group who gain from a project that
    have wide distribution of costs lobbyism have
    good chance to success.
  • Paradigm conflicts Dont believe that
    infrastructure improvements have great importance
    for socio economic development by summing up the
    effects of time, accidents, envronments effects
    values.
  • Unclear what calculations include and exclude
    Regionaleconomic effects and distributional
    effects. Can a region that are left behind be
    helped better?

30
How should it be from now on?
  • Remember that CBA is one paper for decision and
    not a decision.
  • A well done CBA is a very important paper for
    decision.
  • Old habit thinking can be revealed (more safety
    is always better than less??).
  • Monument building decrease. Public interest more
    critical to decisions.
  • Evaluate difficult effects that are nonmonetized
    with the total of excess or deficit.
  • Consider this for Russia Socioeconomic
    evaluation should be made in all studies
    (feasibility etc).

31
Review of the Multimodal Appraisal System in
Sweden
32
Use of CBA in Sweden/Europe
  • Swedish transport policy is guided by an overall
    goal, to ensure a socio-economically efficient
    transport system that is sustainable in the long
    term for individuals and the business community
    throughout the country

33
Goals in transport policy The overall goal of
transport policy is divided into six subsidiary
goals
  • Accessible transport system
  • High transport quality
  • Safe traffic
  • Good environment
  • Positive regional development
  • Gender-equal transport system

34
(No Transcript)
35
Political aims
Directive
36
The Four Step Principle
Measures that affect transport needs and choice
of mode of transport
Possible measures step 1
Short-comings/ Needs
Balancing and prioritising measures with
different effects, costs and time perspectives
Measures that lead to more efficient utilisation
of the existing road network
Possible measures step 2
Road improvements and minor conversions
Possible measures step 3
New investments and major conversions
Possible measures step 4
37
The use of Cost Benefit Analysis at SRA
38
The Planning Procedure in three levels
  • Planning in a strategically level.
  • Concerning all traffic modes road, railway, air
    and shipping
  • System analysis of the road network.Improvement
    of the road network in a large scale
  • Road projects.Individual actions to the roads

CBA is used in all three levels
39
Factors to CBA
  • Valued Impacts
  • Travel time
  • Vehicle costs
  • Traffic Safety
  • Environmental issues
  • Maintenance costs
  • Noise

Impacts not to be settled
Valued Impacts
  • Estimated Impacts
  • Barrier impacts

- Environmental protection
40
Foundation of decisions
41
Transport demand forecasting models
  • Overall assumptions now and in the future
  • National institute Models for national long
    term
  • for statistik etc. economic forecast
  • - EMEC - rAps

- Population - Business sector, export and
import - Employment, incoms - Infrastructure -
Car ownership - GDP-growth - Taxation, charges,
regulation
  • SAMGODS The Swedish model system for freight
    transports
  • Foreign trade
  • VTI/TPR
  • STAN (system optimizing)
  • SAMKALK GODS
  • SAMPERS The Swedish model system for passenger
    traveling
  • Car ownership
  • Regional travel (5 models)
  • National travel
  • International travel
  • EMME/2 (user optimizing)
  • ACCESSIBILITY SAMKALK
  • MODUL

42
Use of SAMGODS / SAMPERS
  • Strategic infrastructure planning for the
    planning period 2004-15
  • Freight transport forecast for 2010 and for 2020
  • Freight corridor study
  • Transport mileage forecast for 2020 analys
    enviroment impacts
  • Impacts from congestion charges Stockholm
  • Bothnia railway

43
Effect profile Summary of impacts according to
the Transport policy
44
Effect profile - continued ..
45
Fulfilment of transport policy
Transport policy Goals and aims
Contribution to the goals ?
Impacts
Action to the road network
46
Summary and conclusions
  • CBA is a useful method to the long-term planning,
    but be useful in some other cases of planning
    matters.
  • CBA is one of many foundations for
    decision-making.
  • CBA doesnt present the whole truth.
  • CBA could in some cases be misused by the
    decision-makers.
  • CBA is used more a less for investments only
  • Need to extend the use of CBA for other actions.
  • Lack of measure / effect correlation for some of
    actions.

47
Physical Transport Planning Process
GAP ANALYSIS
INITIAL STUDY
FEASIBILITY STUDY
DESIGN PLAN
BUILDING DOCUMENT
48
The four-step principle
1
3
Transport needs and means of transport
Improvements and minor conversions
2
4
More efficient use of the road network
New investments and major conversions
49
The four steps
  1. Measures that effect transport needs and choice
    of mode of transport
  2. Measures that lead to more efficient utilisation
    of the existing road network
  3. Road improvements and minor conversions
  4. New investments and major conversions

50
Work method
Measures that affect transport needs and choice
of mode of transport
Possible measures step 1
Short-comings/ Needs
Balancing and prioritising measures with
different effects, costs and time perspectives
Measures that lead to more efficient utilisation
of the existing road network
Possible measures step 2
Road improvements and minor conversions
Possible measures step 3
New investments and major conversions
Possible measures step 4
51
Example
E4 Ljungby
  • Choise of measures
  • Immidiate Lower speed 110 to 80 km/h
  • Short perspective Midbarrier 21
  • Long perspective Motorway 22

Lower traffic intensity ?
No measure found
Severe head on coll-isions
Traffic regulation ?
Lowered speed
Minor road construction measures ?
Construction midbarrier 21
Major road construction measures?
Construction motorway 22
52
Review and Implementation of new Speed Limits
Sweden 2008 2009
incorporated to present speed limits 30 50
70 90 110
53
New Speed Limits
  • Parliament decision may 2007 Road
    Administration, Regional Governments and
    Municipalities have the right to decide on speed
    limits from 30 to 120 km/h with succession of 10
    km/h step.
  • Government decide in traffic regulation so Road
    Administration can implement speed limits 80, 100
    and 120 km/h.
  • The new regulation starts from 2 may 2008.
  • General Director of Road Administration decide on
    guidelines for the implementation of new speed
    limits, December 2007.

54
In a long term perspective shall
  • a consecutive adjustment of speed limits
    towards vision zero and that demand on
    accessibility, good environment, positive
    regional development and an equal transport
    system been taken in consideration.
  • Governmental Proposition of New Speed Limits

55
New Speed Limits Why ???
  • Present system from 1971 (1955 urban areas)
  • Inconsistency of decisions during that time
    period.
  • Speed limits have not been considered from humans
    ability to handle physical violence.
  • New transport policy goals have been decided.
  • From safety- and environmental perspective, is
    20-step to big.
  • Road transport system can be utilized more
    efficiently with respect to all transport policy
    goals.
  • Acceptance for new speed limits should increase.
  • New road types since 1971.

56
How shall this be implemented??
  • Road Administration review of roads outside urban
    areas (mostly 90 and 110 roads)
  • Municipalities implement new speed limits within
    planned urban areas.
  • Regional governments adjust local speed limit
    decisions and private roads.
  • Review in close coperation with new long term
    plan 2010 2020.

57
(When) Time schedule state roads
Phase 1 - National roads Autumn 2008 European road and major other roads
- Motorway 120 km/h Autumn 2008 European road and major other roads
Phase 2 - Other major roads Spring 2009 Secondary roads
Phase 3 Other roads Autumn 2009 Other roads
58
Criteria for speed limit decision
  • Accessibility road connections important to
    keep or preserve higher speed limit, is road
    connections important for commuting, extended
    local labour market functionality, high share of
    long distance transports, rural areas with
    longer transports in sparsely populated areas or
    high importance for freight transports.
  • Traffic Safety physical damage violence on
    human being
  • Environment harmonically speed limits, national
    Carbondioxide (CO2) goals, local concentrations
    of pollutions and noice level. Increased
    externalities on a certain road network can be
    compensated of reductions on other road network.
  • Trafficant acceptance Fare, logical, clear and
    self explanatory speed limits

59
  • Consequences
  • Reduction of killed persons annually 10 persons
  • Carbondioxide (CO2) reduction 10000 ton/year
  • Travel time increase with 2 miljon hour/year cars
    and buses
  • Indifferent transport time for heavy lorries.
  • Valuable socioeconomic benefits annually 6 MECU
    (Milj Euros)
  • But 700000 ton/year CO2 and 150 saved life
  • Just follow the present speed limits

60
(No Transcript)
61
  • City streets
  • Schools
  • Mixed trafficants

62
  • Streets on main net
  • Pedestrian ways
  • Bicycles on road
  • Walking strips

63
  • Urban areas
  • Major Traffic links
  • Few/distant intersections
  • Separated pedestrian roadway

64
  • Two lane roads with high risk accidents with
    killed and severly damage
  • (Today 90-road without mid barrier fence, non
    satisfied standard on side areas)

65
Road important for business and industry
transports today 70 - road
66
Roads with rumble strip barrier and placed
streches for passing (21) lt 4000 vehicle/day
67
Normal speed limit with mid barrier fence
Separated lanes with mid barrier fence (21, 22,
11) with good standard on road side areas
68
Motorways
Normal 110 km/hour
120 km/hour with high safety standard and
relatively low traffic volume
69
(No Transcript)
70
Schematic review new speed limits in Sweden 2008
Higher Lower
71
Communication with partners Meetings,
suggestions, discussions
Police Swedish spedition org NTF (traffic
safety org) Swedish Municipalities and Health
care Taxi/Cab org Bus org Motormännen/Org for
trafficants Regional governments Traffic
education org . . . Car testing institute . .
. Municipalities . . .
72
More Information
  • Per-j.eriksson_at_vv.se
  • Linda.bengtsson_at_external.vv.se
  • Elena.vikstrom_at_vv.se
  • www.vv.se/nyahastighetsgranser

73
Questions?
Write a Comment
User Comments (0)
About PowerShow.com