Safer Roads By David Moir
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Transcript of Safer Roads By David Moir
Safer Roads Seminar
David Moir, Executive Manager, Member Advocacy
RACWA
August 2008
What is AusRAP?
Sister program to ANCAP
Part of iRAP
What is AusRAP?
EuroRAPusRAP
AusRAPSouth Africa
Malaysia & Vietnam
CostaRica
Chile
KiwiRAP
11%
11%
13%
16%
17%
21%
32%
38%
What makes a road dangerous?
Poor surface. Uneven. Poor maintenance.
Potholes. Large potholes. Not fixed.
Narrow roads
Inadequate signage
Corners, bends
Weather
Poor visibility
Inadequate lighting
2004
42%
36%
21%
11%
13%
-
14%
12%
Concept of a Dangerous Road
As in 2004, the main concept of a dangerous
road relates to its condition and maintenance.
- Responses to open-ended question -
ANOP, 2007
Here’s how the National Strategy says we could save 700 lives every year
Improved roads
Safer vehicles
Driver behaviour
New technology
A safe system: Safer drivers in safer cars on safer roads
How safe are our roads?Rate has increased
WA’s contribution is nothing to be proud of
Australia
Western Australia
5.05.56.06.5
7.07.58.08.59.09.5
10.0
10.511.011.512.0
Dec
-00
Dec
-01
Dec
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Dec
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Dec
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-08
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-10
Dea
ths
per 1
00,0
00 p
opul
atio
n
National target
Where AusRAP fits inAusRAP
ARRB NetRiskUses safety triggers to identify high risk parts of a road network for investigation
ARRB RSRMAssess, prioritise and track particular site treatments
Communication and funding
Road network screening
Site treatment
Who will benefit?Road users:
Community pressureAwareness of risk Adapt road user behaviour
Governments, authorities, planners and engineers:
Business case for road improvementsTracking of road improvementsDecision-making about road investmentsCompare performance of roads Discussion on technical standards
How does AusRAP star-rate roads?
Star-ratings measure safety built-in to the road
Identifies risky sections of road before a crash occurs
In NZ in 2004, 54% of fatal crashes occurred where there had been no other injury crashes in the previous 4 years
Measures likelihood and severity
Method developed with ARRB Consulting
How is the data collected?
What elements are inspected?For run-off road and head-on crashes:
divided or undividedlane widthsealed shoulder widthalignment terrain line markingroadsides traffic speedsovertaking provision
What elements are inspected?For intersection crashes:
type of intersection volume of traffic on side road (or railway)traffic speedsalignment of side roads (or railway)sight distancesright and left turn provision
Road Protection Score (RPS)
Star-ratings are based on a RPS
Crash risk ‘score’ can be assigned to each of the road’s design elements
Eg: crash risk on road with narrow lanes (<2.8m) 50% higher than wide lanes (3.6m)
RPS combines these scores to form a star-rating
Undivided
Severe roadside
Narrow shoulders
Bad overtaking
Curves
Bruce Highway, QLD
Moderate shoulders
Straight
Undivided
Good overtaking
Moderate roadside
Good lines
Great Eastern Hwy, WA
Divided – innovative use of barriers
Severe roadside
Wide lanes
Wide shoulders
Good lines
Good overtaking
Straight
Pacific Hwy, NSW
‘Risk Worm’
AusRAP Star RatingsAusLink National Network
* * * * * 0%
* * * * 42%
* * * 55%
* * 3%
* 0%
AusRAP Star RatingsAusLink National Network in NSW
* * * * * 0%
* * * * 24%
* * * 68%
* * 8%
* 0%
AfterBefore
Crash costs by star rating(cents per kilometre travelled)
5
3
10
2 3 4Star rating
Crash costs halved
Crash costs halved again
Lifting the Network to 4 stars
Research question:
What is the least-cost way of lifting a significant proportion of the national
network to 4 stars?
Preliminary Results for NSWTotal investment: $14 billion (no time period set)
($ million)
Preliminary results for NSWImprovements in Star Ratings as a result of investment (% of network by star rating)
0%
61%
0%0% 0%
68%
8%
0%
39%
24%
0%
10%
20%
30%
40%
50%
60%
70%
80%
54321
Star rating
After Before
Acknowledgements
Star Ratings
Typical roadRating Scale
Divided Road Undivided RoadStraight with good line-marking, wide
lanes and sealed shoulders, safe roadsides and occasional over- or
under-pass intersections.
No undivided roads can achieve a 5-star rating.
Minor deficiencies in some road features such as lane width, shoulder
width, roadside or roadsides.
Straight with good overtaking provision, good line-marking and safe roadsides.
Major deficiencies in some road features such as poor median
protection against head-on crashes, many minor deficiencies and/or poorly
designed intersections at regular intervals.
Minor deficiencies in some road features such as alignment and roadsides and/or poorly designed intersections at regular
intervals.
Star Ratings
Many major deficiencies such as poor alignment, poor roadsides and median protection and poorly
designed intersections at regular intersections.
Major deficiencies in some road features such as poor roadsides and/or many
minor deficiencies such as insufficient overtaking provision and narrow lanes, and/or poorly designed intersections at
regular intervals intersections.
Poor alignment, in mountainous terrain, narrow lanes and shoulders,
severe roadside conditions and many major intersections.
Poor alignment, in mountainous terrain, narrow lanes and sealed shoulders, poor
line marking and severe roadside conditions.
Typical roadRating Scale
Divided Road Undivided Road