How GIS can help to promote safe cycling

Martin Loidl| martin.loidl@sbg.ac.at

EnviroInfo 2014, WS “Sustainable Mobility”Oldenburg, Sept. 11 2014

@gicycle_

gicycle.wordpress.com

2

Sustainable Mobility & Cycling

Bicycle Promotion & Safety

Safety & GIS

3

Less space, pollution, noise, investment in infrastructure, social inequality …

More health effects, flexibility, … Better livability, city structure, accessibility

Sustainable Mobility & Cycling

Bild: www.salzburg24.at

Bild: REK2007, Stadt Salzburg

4

Sustainable Mobility & Cycling

Potential for bicycle

ILLEK, G. & MAYER, I. 2013. Radverkehr in Zahlen - Daten, Fakten und Stimmungen. Wien: BMVIT.

5

Bicycle Promotion & Safety

6

Safety concerns are valid “Whilst cycling is one of the

healthiest means of transportation, it is far more dangerous than assumed.” (Juhra et al. 2012)

Safety concerns need to be addressed “Policies to encourage walking and

cycling need additional criteria to ensure the safety of these road users.” (WHO 2013)

Bicycle Promotion & Safety

“Road safety: Second good year in a row puts Europe firmly on track towards target” (EC - IP/14/341; 31/03/2014)Another worrying feature of the statistics is the situation of vulnerable road users: The number of pedestrians killed is decreasing to a lesser extent than expected and the number of cyclists killed has recently even been increasing. This is partly due to the fact that more and more people cycle; the challenge for Member States is to encourage people to use their bicycles rather than their cars more often, but to make sure that the shift from car to bicycle is a safe one.

C. Juhra, et al., "Bicycle accidents – Do we only see the tip of the iceberg?: A prospective multi-centre study in a large German city combining medical and police data," Injury, vol. 43, pp. 2026-2034, 2012.WHO, "Global Status Report on Road Safety 2013 - Supporting a Decade of Action," World Health Organization, Geneva 2013.

7

8

Road space can be perceived from many perspectives = complex system GIS facilitates integrated approach

Geographical Information Systems

9

Safety & GIS

Sound data basis allows for … Spatial modeling and analysis Qualified, evidence-based decisions

10

Accident Analysis3.048 geo-located bicycle accidents in Salzburg (AT), 10 years

11

Accident Analysis

Create network-based spatial

reference units

Iterate random point generator

Calculate statistics for each

reference unit

For further details see Blogposthttps://gicycle.wordpress.com/2014/03/04/creating-network-based-reference-units/

For further details see Blogposthttps://gicycle.wordpress.com/2014/03/26/evaluating-the-significance-of-bicycle-accidents/

12

Accident Analysis

13

Accident Analysisbicycle accidents 2011

Combine spatial location and attributive information

Gain insight into conditions under which accidents tend to occur more often

14

Safety & GIS

Sound data basis allows for … Spatial modeling and analysis Qualified, evidence-based decisions

15

Indicator-based assessment model

16

Indicator-based assessment model

Loidl & Zagel 2014

Loidl, M., Zagel, B., Year. Assessing bicycle safety in multiple networks with different data models. In: Proceedings of the GI-Forum, Salzburg, pp. 144-154.

17

Indicator-based assessment model

Index value = 0.22

Index value = 0.37

Index value = 0.50

Index value = 0.65

18

Safety & GIS

Quality assessment for complete network Status quo analysis, planning and simulation tool Basis for information applications (e.g. routing)

19

Safety & GIS

20

2 safety pillars can be directly addressed by GIS Road infrastructure Information offers

Accident analysis and assessment model help … … to answer questions in a planning context such as „What‘s the effect

of building a cycleway along a particular road?“ or „Where are the bottlenecks or weak points of the network?“ etc.

… to provide specific (routing) information What’s ahead:

Personalization Socialization Contextualization

Conclusion

@gicycle_

gicycle.wordpress.com