Traffic Calming (Voca meeting)
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Traffic Calming VOCA – Volunteers of Cycling Academy, Lisbon Lisbon, 2013. February
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Traffic Calming lecture for the VOCA – Volunteers of Cycling Academy, Lisbon
Transcript of Traffic Calming (Voca meeting)
Traffic CalmingVOCA – Volunteers of Cycling Academy, Lisbon
Lisbon, 2013. February
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The goal of reducing vehicle speeds, improving safety, and enhancing quality of life
Road safety: Speed ~ injuries Livable cities, Land use/functional planning Encourage sustainable modes of transport
Why Traffic Calming?
Picture source: http://www.ibelieveinadv.com/commons www.peoplepoweredmovement.org www.newscenter.philips.com
Art Photo : Akos Bereczky (http://akimester.blogspot.hu/ )
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Volume controll Speed controll Parking space, Downtown, neighbourhoods
Decentralisation Local traffic / Transit Time share? Lane widht?
Urban space, road networkurban planning
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Speed Hump Speed Limit Raised Intersection Textured Pavement Raised Crosswalk Raised Crosswalk Round about Narrowing Choker, cul-de-sac ? Half Closure Diagonal Diverter
Measures / Traffic managent tools
Szerző: Bencze-Kovács Virág 62012.nov.
Safety Impacts of Traffic Calming Measures
# of Observations
Average # of CollisionsWithout Measure
Average # of CollisionsWith Measure
% Change in Collisions
12' Speed Hump
49 2.7 2.4 -11%
14' Speed Hump
5 4.4 2.6 -41%
22' Speed Table
8 6.7 3.7 -45%
Traffic Circle(w/o Seattle)
17 5.9 4.2 -29%
Source: http://trafficcalming.org/effectiveness/
D.C.Richards, 2010, Relationship between Speed and Risk of Fatal Injury: Pedestrians and Car Occupants
30
60
50
KM/H
100
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Speed Impacts and Volume Impacts of Traffic Calming Measures
Sample Size
85th PercenileSpeed Afterward
Average Change in 85th Percentile Speed
Average % Change
12' Speed Hump
17927.4 mph(4.0 mph)
-7.6 mph(3.5mph)
-22%(9%)
14' Speed Hump
1525.6(2.1)
-7.7(2.1 mph)
-23(6)
22' Speed Table
5830.1(2.7)
-6.6(3.2)
-18(8)
Longer Table (>22')
1031.6(2.8)
-3.2(2.4)
-9(7)
Raised Intersection
334.3(6.0)
-0.3(3.8)
-1(10)
Traffic Circle
4530.3(4.3)
-3.9(3.2)
-11(10)
Narrowing 732.3(2.8)
-2.6(5.5)
-7(22)
Choker 528.6(3.1)
-2.6(1.3)
-14(4)
Half Closure
1626.3(5.2)
-6.0(3.6)
-19(11)
Diagonal Diverter
727.9(5.2)
-1.4(4.7)
0(17)
Sample Size
Average Change in Volume
Average % Change
Choker 5-392 vehicles per day(384 vehicles per day)
-20%(19%)
Full Closure 19-671 vehicles per day(786 vehicles per day)
-44%(36%)
Half Closure 53-1611 vehicles per day(2444 vehicles per day)
-42%(41%)
Diagonal Diverter 27
-501 vehicles per day(622 vehicles per day)
-35%(46%)
Other Volume Control
10-1167 vehicles per day(1781 vehicles per day)
-31%(36%)
Source: http://trafficcalming.org/effectiveness/
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Zona 30 Pedestrian Zone Bike+Pedestrian Zone Mixed traffic, residential street Shared space
Measures / Traffic managent tools
Graz Ljubljana
Brno
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Budapest downtown street reconstructions 2012 / Cultur District
Szerző: Bencze-Kovács Virág 102012.nov.
Osztrák Közlekedési Klub (VCÖ) „Utak a kerékpározáshoz” - Tudomány ésközlekedés 2/1995 cím kézikönyvébl
11Author : Virág Bencze-Kovács
Bike friendly traffic calming
Febr 2013
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Pace Car
Zebra-Fest
City without traffic sign
Traffic sign used for high-occupancy traffic lanes in Norway:
Over the edge…
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back-in parking is safer Fourteen percent of car crashes occur in parking lots 'I'm not going to rush into things, I'm going to plan
sensibly.'
back-in parking / Fancy Parking
Source: Back-in/Head-out Angle Parking, Nelson\Nygaard Consulting Associates (2005)
http://lda.ucdavis.edu/LDA191/Course%20Handouts%20&%20Readings/05-Back_in_Diagonal_Parking.pdf
http://www.northamptonma.gov/tpc/BackIn_Angle_Parking_Test/
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Brussels Budapest
Bike lane reallocation
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Hyatt, Justin: Fenntartható közlekedés a városban, Útmutató önkormányzatoknak (Zöld Fiatalok, 2007),web: http://mek.oszk.hu/08600/08649/08649.pdf
Cycling: the way ahead for towns and cities ec.europa.eu/environment/archives/cycling/cycling_en.pdf
ÚT 2-1.203 Kerékpárforgalmi létesítmények tervezése c. műszaki előírás Own photos: https://picasaweb.google.com/b.k.virag; Photos by Hungarian Cyclists Club (Dalos Péter, Bencze-Kovács Virág és mások)
https://picasaweb.google.com/magyar.kerekparosklub
Carfree cities, social space: http://www.carfree.com/district.html http://www.carfree.com/links.html http://www.lesstraffic.com/ David Engwicht - “street philosopher” http://www.pps.org/reference/david-engwicht/ W.H. Whyte, Social Life of Small Urban Spaces: http://www.youtube.com/watch?v=S2GfOhFZkY8 Kensington markets in Toronto, Canada (creative ways to engage the community):
www.streetsalive.net
Licensz:
Creative Commons Attribution Share Alike (CC-BY-SA-3.0)Nevezd meg!-Így add tovább!
Bibliography
Febr 2013Author : Virág Bencze-Kovács
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Bencze-Kovács Virág
Profile:hu.linkedin.com/in/kovacsvirag;
http://www.slideshare.net/kvir
Thank you for your attention
Art Photo : Akos Bereczky (http://akimester.blogspot.hu/ )
