- Cities for Innovation in Road Safety – A Traffic Safety Plan for Dresden „Friedrich List“ Faculty for Transportation and Traffic Sciences, Institute.

- 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


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


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


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


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.


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


02 BackgroundProcedures

Safety-analysis according to NSM• Evaluation of the present network


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


Local accident investigationOne-year-accident-map (2005)

03 Major Issues


Three-year-accident-map (2003-05)

Local accident investigation03 Major Issues


Accident black spotsLocal accident investigation03 Major Issues


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.


NSM-Analysis03 Major Issues

A B

accident cost rate

(A)accident cost rate

(B)basic accident cost rate

basic accident cost rate



A B

accident cost rate

(A)accident cost rate

(B)basic accident cost rate

basic accident cost rate

safety- potentia

l Asafety-

potential B


03 Major IssuesNSM-Analysis

Sicherheitspotential vUKD [1000€/(km*a)]

<0 (177)>0 (67)>1000 (26)>200 (31)>400 (19)>600 (12)>800 (8)


<0 (177)>0 (67)>1000 (26)>200 (31)>400 (19)>600 (12)>800 (8)


<0 (177)>0 (67)>1000 (26)>200 (31)>400 (19)>600 (12)>800 (8)

Safety potential [1.000€/(km*a)]



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 [%

]


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

- Cities for Innovation in Road Safety – A Traffic Safety Plan for Dresden „Friedrich List“ Faculty for Transportation and Traffic Sciences, Institute.

Documents