Road Safety and Transportation Planning The Pilot...
Transcript of Road Safety and Transportation Planning The Pilot...
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 1
Stadt Zürich Dienstabteilung Verkehr
Road Safety and Transportation Planning – The Pilot Study of Zurich
Christian Heimgartner, City of Zurich Andre Münch, PTV Group Presentation at the Shaping Transportation – Conference & International PTV Vision Traffic User Group Meeting Berlin, May 2014
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 2
Stadt Zürich Dienstabteilung Verkehr
The Importance of Road Safety in Zurich
Road safety is a main issue in Zurich, ...
Accident data analysis in the Road Safety Team
Framework Programme Road Safety ... but also in the entire Switzerland!
Federal Council’s programme «Via sicura»
Catalogue of Road Safety Measures
Road Safety Commissioners on federal and cantonal level and for the larger cities
Road Infrastructure Safety Tools
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 2
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 3
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The Road Infrastructure Safety Tools
Identifying the safest project layout
Designing projects roadworthy
Identifying and sanifying danger spots
Identifying and sanifying black spots
Monitoring road safety on network level
Analysing road infrastructure case-related Single Accident
Location Management
Refe
rence: A
ST
RA
(20
13
a)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 4
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Planning
(new construction)
Planning
(reconstruction and upgrading)
Project design
Implementation
Operation Specific
single event
The Road Infrastructure Life Cycle and the Tools
Refe
rence: A
ST
RA
(20
13
a)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 5
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Combining Expertise on Road Safety and Transport Modelling in Zurich
Expertise and software tools: – accident data analysis and road safety – transport modelling and simulation The Motivation: Benefit from synergies combining road safety analysis
and transport modelling The Occasion:
– Dr. Wernher Brucks, Head of Road Safety, got Road Safety Commissioner for Zurich
– Workshop with PTV Group for implementation of RIA in transport modelling
RIA Pilot Study in collaboration City of Zurich and PTV Group
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 6
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The Road Safety Impact Analysis (RIA)
Planning
(new construction)
Planning
(reconstruction and upgrading)
Project design
Implementation
Operation Specific
single event
Refe
rence: A
ST
RA
(20
13
a)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 7
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Road Safety Impact Assessment (RIA) and Accident Prediction Models (APM)
Standardized valuation method for comparing newly planned alternative schemes
Estimations of e.g. accident cost rates for different types of infrastructure (nodes and links)
Cost-benefit-analysis of new constructions or reconstructions
Accident costs in Euro
per 1000 vehicle (km)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 8
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The Objective of RIA
Actual state Layouts Safest Layout
A
B
C
Refe
rence: A
ST
RA
(20
13
b)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 9
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The Causal Diagram of the RIA Method
Average daily traffic
per link and node
Accident prediction models (APM)
Links and nodes
per APM type
Transportation model / Traffic data
Expected number of
accidents per APM type
Expected cost of
accidents per APM type
Expected number
of accidents
Expected costs
of accidents
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 10
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PTV‘s Background and Motivation
There´s a huge potential in the linkage between transportation planning and road safety because of the long-term decision based on the results of transport modelling. For that reason: Combining the predictive components (traffic and
accidents) for long term decision support
Implementation of Accident Prediction Models (APM)
Gathering experience with the application of these APM methods
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 11
The Measure – New Motorway Segment (1)
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Refe
rence: O
ffic
e o
f T
ran
sp
ort
(20
09
), s
wis
sin
fo.c
h (
20
09
)
Length: 10.6 km
Costs: 2.85 Mrd. CHF
Length: 15.7 km
Costs: 1.14 Mrd. CHF
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 12
The Measure – New Motorway Segment (2)
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Refe
rence: C
an
ton o
f Z
urich (
20
12
), P
TV
Gro
up
(20
14
)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 13
The Measure – New Motorway Segment (3)
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Re
fere
nce: C
an
ton o
f Z
urich
(2
01
2),
PT
V G
rou
p (
20
14
)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 14
The Impact of the Measure (1)
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Refe
rence: C
an
ton o
f Z
urich (
20
12
), P
TV
Gro
up
(20
14
)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 15
The Impact of the Measure (2)
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Traffic volume differences: +/- 1000 vehicles
or +/- 5%
Refe
rence: C
an
ton o
f Z
urich (
20
12
), P
TV
Gro
up
(20
14
)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 16
The Impact of the Measure (3)
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Refe
rence: C
an
ton o
f Z
urich (
20
12
), P
TV
Gro
up
(20
14
)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 17
Historical Accident Data
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Refe
rence: C
an
ton o
f Z
urich (
20
12
), P
TV
Gro
up
(20
14
)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 18
Main Results
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RIA accident
counts
historical accident
counts
Before 3‘129 4‘862
After 2‘617 4‘356
∆ 512 506
∆ in [%] 16,4% 10,4%
Refe
rence: C
an
ton o
f Z
urich (
20
12
), P
TV
Gro
up
(20
14
)
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 19
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Conclusions
The RIA results complement conventional road safety expertise in a efficient way.
The results demonstrate well applicability for large scale
measures. The RIA implementation within PTV VISUM Safety links road
safety analysis with transportation planning promisingly. Three main elements are essential for a high quality RIA:
APM modelling
Transportation model / Traffic data
Application of the APM modelling
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 20
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Outlook
RIA offers great potential for increasing road safety in general.
Assessment of small sites in urban areas asks for further
investigations in combination of increasing:
detail level of APMs
detail level of transportation model
accuracy of traffic data The combination of transportation models with road safety
analysis enlarges return of invest in transportation modelling.
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 21
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Traffic Data and Transportation Modelling – A Key Factor for RIA !
Average daily traffic
per link and node
Accident prediction models (APM)
Links and nodes
per APM type
Transportation model / Traffic data
Expected number of
accidents per APM type
Expected cost of
accidents per APM type
Expected number
of accidents
Expected costs
of accidents
Accident data Accident data
!
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 22
Road safety workshops at Shaping Transportation conference 2014
9:00 – 10:30 am SAFER CYCLING IN CITIES
Atze Dijkstra (SWOV) & Andre Münch (PTV Group)
11:00 – 12:30 pm PTV Visum Safety
ROAD SAFETY – NETWORK SAFETY MANAGEMENT WITH PTV VISUM SAFETY Timo Hoffmann (PTV Group)
11:00 – 12:30 pm MODELLING CYCLISTS
Søren Frost (COWI) & Caroline Chassagne (PTV Group)
2:00 – 3:30 pm PTV Visum Safety
ROAD SAFETY – DEVELOPING AND USING A CRASH PREDICTION MODEL Timo Hoffmann (PTV Group)
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Safer roads save lives!
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 23
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Thanks for Your Attention !
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 23
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 24
City of Zurich Division of Transport
Abbreviations
FEDRO / ASTRA: Federal Roads Office / Bundesamt für Strassen RIA: Road Safety Impact Assessment RSA: Road Safety Audit RSI: Road Safety Inspection BSM: Black Spot Management NSM: Network Safety Management EUM: Einzelunfallstellen-Management / Single Accident Location
Management
Road Safety and Transportation Planning – The Pilot Study of Zurich Christian Heimgartner, Andre Münch, May 2014, Page 25
City of Zurich Division of Transport
References
ASTRA (2013a) Infrastruktur-Sicherheitsinstrumente - Vollzugshilfe, Bundesamt für Strassen (ASTRA), Bern.
ASTRA (2013b) Infrastruktur-Sicherheitsinstrumente, Präsentation, Bundesamt für Strassen
(ASTRA), Bern. Canton of Zurich (2012) Transport Model Canton of Zurich, Canton of Zurich, Zurich. Canton of Zurich (2009) Westumfahrung, former website on the project,
www.westumfahrung.ch, Office of Transport, Canton of Zurich, Zurich. PTV Group (2014) VISUM Safety, Accident data and modelling module, PTV Group,
Karlsruhe. Swissinfo.ch (2009) Drum herum, statt mitten durch Zürich, Webartikel,
www.swissinfo.ch/ger/archiv/Drum_herum,_statt_mitten_durch_Zuerich.html?cid=7335254, swissinfo.ch, Bern.