- Cities for Innovation in Road Safety – A Traffic Safety ... · • The analysis of safety...
Transcript of - Cities for Innovation in Road Safety – A Traffic Safety ... · • The analysis of safety...
„Friedrich List“ Faculty for Transportation and Traffic Sciences , Institute for Traffic Planning and Road Traffic
Chair for Road Traffic Engineering and Theoretical Transportation Planning
- Cities for Innovation in Road Safety –
A Traffic Safety Plan for Dresden
Brussels, 07.Oct.2008
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 2
01 Introduction
Traffic Flow:• Traffic flow and capacity for all traffic modes• Coordination of design and operation for intersections• Traffic management in networks• Characteristics of non-motorised road users
Road Traffic Safety:
• Relationship between traffic flow and traffic safety• Parameters to describe safety relevant driving behaviour and accident
situations• Methods of Road Traffic Safety Analysis• Training of road safety auditors
TU Dresden, Chair for Road Traffic Engineering
01 Introduction
General Information:
• Capital of Saxony with about 500.000 inhabitants.
Road Traffic Safety:
• Overall about 15.000 accidents (including material damage) in 2005, more than 2.500 people were injured.
• Every year about 100 persons get injured in accidents at turned-off traffic lights.
• Every year about 90 collisions of left-turning drivers with oncoming traffic take place at traffic lights.
• Approximately 500 persons are injured in right-of-way-accidents involving bicyclists every year.
City of Dresden
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 3
01 IntroductionAccidents with pedestrians and bicyclists (2005)
All accidents:
Severity:
383 1.694 12.804
34
2
39
32
10
23
0
10
20
30
40
50
60
70
perc
en
t [%
]
pedestriansbothbicyclists
00
Severe Injury +Fatalities
Slight Injuriy
Material Damage
46
65
2
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 4
02 BackgroundProcedures
Safety-analysis according to Network Safety Management (NSM)• Evaluation of the existing network
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 5
02 BackgroundProcedures
Safety-analysis according to Network Safety Management (NSM)• Evaluation of the existing network
Local Accident Investigation• Black Spots in the existing network
Road Safety Audit• Review of the design process
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 6
Local accident investigation
One-year-accident-type-map (2005)
03 Major Issues
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 7
Three-year-accident-type-map (2003-05)
Local accident investigation03 Major Issues
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 8
Accident black spots
Local accident investigation03 Major Issues
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 9
03 Major IssuesAction plan for 60 black spots
Approach:
• The spots were ranked by means of cost-benefit-estimations.• Based on the ranking of black spots, an action plan was worked
out in order to eliminate 60 black spots in Dresden.
Results:
• The investment costs for the measures suggested amount to about 2.800.000 €.
• The annual cost can be estimated at around 380.000 € p. a..• The benefit adds up to 5.600.000 € p. a..• This leads to a cost-benefit-ratio of approximately 15.
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 10
NSM-Analysis03 Major Issues
A B
accident cost rate (A) accident cost
rate (B)
basic accident cost rate
basic accident cost rate
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 11
NSM-Analysis03 Major Issues
A B
basic accident cost rate
basic accident cost rate
safety-potential A safety-
potential B
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 12
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 13
03 Major IssuesNSM-Analysis
Sicherheitspotential vUKD [1000€/(km*a)]
<0 (177)>0 (67)>1000 (26)>200 (31)>400 (19)>600 (12)>800 (8)
>200 (31)>400 (19)>600 (12)>800 (8)( )>1000 (26)
Safety potential [1.000€/(km*a)]
NSM-Analysis03 Major Issues
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Anteil Netzlänge
verm
eidb
are
Unf
allk
oste
n U
K(P
,S)
Anteil an Abschnitten mit positivem Sicherheitspotential
Part of the network with a safety potential
length [% of the network]
avo
idab
le a
ccid
ent
cost
[%
]
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 14
04 Conclusions
Results:
• The City of Dresden is now fitted with a short-term concept in order to improve the road traffic safety at 60 spots effectively .
• The action plan is ranked by means of benefit-cost-ratio and allows a highly efficient use of resources.
• Results are provided to support a safe development of road infrastructure in the long term.
• The analysis of safety potentials throughout the main road network builds a basis for an appropriate consideration of road traffic safety in the future planning process.
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 15
„Friedrich List“ Faculty for Transportation and Traffic Sciences , Institute for Traffic Planning and Road Traffic
Chair for Road Traffic Engineering with Department of Theoretical Transportation Planning
- Cities for Innovation in Road Safety –
A Traffic Safety Plan for Dresden
Brussels, 07.Oct.2008
02 BackgroundStrategies
1. Short-term strategies: • Duration of one year.
• Mainly activities dealing with quality management.
2. Medium-term strategies: • Duration of two further years.
• Primarily activities in the range of network analysis as well as road safety audit.
End of project
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 18
Strategies
1. Short-term strategies:
2. Medium-term strategies:
End of project
− Local accident investigation
− Quality management
− NSM-Analysis (major-road-network)
− Multi-modal-analysis
− Road safety audit
1st year
2nd - 3rd year
action plan
02 Background
TU Dresden, 10.10.2008 A Traffic Safety Plan for Dresden Slide 19