Faculty of Transportation and Traffic Sciences “Friedrich List“, Chair of Transport Ecology

How to measure progress in cycling? Travel surveys and other data sources.

Thilo Becker 21 October 2016

Sustainable mobility. More is better? Slide 2

Goals for cycling• National Cycling Strategy: “Increase of the modal

share of all trips from 10 % in 2012 to 15 % in 2020”• Leipzig: “The environmentally friendly modes shall

increase from 60 % to 70 % in 2025 (bike: 14 % 20 %)

• Berlin: “Noticeable increase of the modal split of cycling within the city limits”

• Munich: 17 % modal split of cycling by 2015; result: 17,4 %

17 October 2016

Sustainable mobility. More is better? Slide 3

General data needs

17 October 2016

• Monitoring progress towards set goals • Understanding transport demand and for strategic

planning time series• Identification and quantification of problems• Argumentation for measures• Prioritization of measures

Sustainable mobility. More is better? Slide 4

Data types for planning

17 October 2016

DemandSupply

Traffic counts

Travel surveys

Land use

InfrastructurePrices / Regulation

Strategic transportation planning process

Sustainable mobility. More is better? Slide 5

Household survey in Dresden (SrV)

Figures: SrV, TU Dresden

17 October 2016

Sustainable mobility. More is better? Slide 6

What is being collected?

17 October 2016

Residents from within the city

Questions: Household, persons, trips

Main mode

Trip: One purpose

All trips for one reporting day

Random sample

Days: Thuesday to Thursday

Weighting

Sustainable mobility. More is better? Slide 7

QuestionThink of you longest trip yesterday. Which main mode of transport did you use? Please raise your hand!

A B C D

Picture Source: wikipedia.org

17 October 2016

Sustainable mobility. More is better? Slide 8

Modal split over time

17 October 2016

Source: Regine Gerike; IVST, TU Dresden

Sustainable mobility. More is better? Slide 9

Number of trips

Source: SrV, MiD

17 October 2016

Sustainable mobility. More is better? Slide 10

Differences in gender and age

Source: Regine Gerike, TU Dresden

17 October 2016

Sustainable mobility. More is better? Slide 11

Which mistakes can happen?• Trip chaining: One or several trips?• Can you remember all trips of yesterday?• Internal traffic versus through traffic

• Imprecise Question• Socially desirable replies• Poor response rate

• Unusual weather conditions

17 October 2016

Sustainable mobility. More is better? Slide 12

Other methods and measuring types

Source: wikipedia.org, ADFC, TU Dresden

17 October 2016

Sustainable mobility. More is better? Slide 13

Options for implementation1. Survey in the conference room2. Online survey distributed by bicycle newsletter3. Household survey by NGO4. Large sample survey by ministry of transport5. Panel survey

17 October 2016

Sustainable mobility. More is better? Slide 14

Summary• SMART goals for planning and implementation• Different usages of data• Household survey essential to quantify and

influence modal split• Method important for consistant time series• Government responsible to ensure data quality

and access• The more data the better the planning

17 October 2016

Sustainable mobility. More is better? Slide 15

Dr.-Ing. Thilo Becker

TU Dresden„Friedrich List“ Faculty of Transport and Traffic Science

Chair of Transport Ecology01062 Dresden

Tel.: +49 (0)351 463 36692E-Mail: thilo.becker@tu-dresden.de

18 August 2016