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- Cities for Innovation in Road Safety –
A Traffic Safety Plan for Dresden
„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
Brussels, 07.Oct.2008
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 1
00 Overview
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 2
01 Introduction
Traffic Flow:• Traffic flow and capacity for all kinds of roads and road users• Coordination of design and operation for intersections• Traffic management in networks
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
TU Dresden, Chair for Road Traffic Engineering
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 3
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, 04.05.23 A Traffic Safety Plan for Dresden Slide 4
01 IntroductionAccidents with pedestrians and bicyclists (2005)
All accidents:
Severity:
383 1.694 12.804
34
2
39
3210
23
0
10
20
30
40
50
60
70
perc
ent
[%]
pedestriansbothbicyclists
00
Severe Injury +Fatalities
Slight Injuriy
Material Damage
46
65
2
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 5
02 BackgroundStrategies1. Short-term strategies:
2. Medium-term strategies:
End of project
• Duration of one year. • Mainly activities dealing with quality
management.
• Duration of two further years. • Primarily activities in the range of
network analysis as well as road safety audit.
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 6
Strategies1. 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, 04.05.23 A Traffic Safety Plan for Dresden Slide 7
02 BackgroundProcedures
Safety-analysis according to NSM• Evaluation of the present network
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 8
02 BackgroundInstruments
Safety-analysis according to NSM• Evaluation of the present network
Local Accident Investigation• Black Spots in the present network
Safety Audit• Review of the planning process
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 9
Local accident investigationOne-year-accident-map (2005)
03 Major Issues
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 10
Three-year-accident-map (2003-05)
Local accident investigation03 Major Issues
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 11
Accident black spotsLocal accident investigation03 Major Issues
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 12
03 Major IssuesAction plan for 60 black spots
Approach:• Based on the ranking of black spots, an action plan was worked out in
order to eliminate 60 black spots in Dresden.• The spots were ranked by means of benefit-cost-estimations.
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 benefit-cost-ratio of approximately 15.
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 13
NSM-Analysis03 Major Issues
A B
accident cost rate
(A)accident cost rate
(B)basic accident cost rate
basic accident cost rate
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 14
NSM-Analysis03 Major Issues
A B
accident cost rate
(A)accident cost rate
(B)basic accident cost rate
basic accident cost rate
safety- potentia
l Asafety-
potential B
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 15
03 Major IssuesNSM-Analysis
Sicherheitspotential vUKD [1000€/(km*a)]
<0 (177)>0 (67)>1000 (26)>200 (31)>400 (19)>600 (12)>800 (8)
Sicherheitspotential vUKD [1000€/(km*a)]
<0 (177)>0 (67)>1000 (26)>200 (31)>400 (19)>600 (12)>800 (8)
Sicherheitspotential vUKD [1000€/(km*a)]
<0 (177)>0 (67)>1000 (26)>200 (31)>400 (19)>600 (12)>800 (8)
Safety potential [1.000€/(km*a)]
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 16
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]
avoi
dabl
e ac
ciden
t cos
t [%
]
TU Dresden, 04.05.23 A Traffic Safety Plan for Dresden Slide 17
04 ConclusionsResults:• 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.
- Cities for Innovation in Road Safety –
A Traffic Safety Plan for Dresden
„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
Brussels, 07.Oct.2008
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