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Hans & Jette | Bikeability Workshop December 2010

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Morten Meyer
Morten Meyer

This document discusses a study to understand bicyclist route preferences and behavior through stated preference surveys and revealed GPS data. It describes plans to conduct an in-street choice experiment survey in Copenhagen involving choice sets comparing routes defined by attributes like bike infrastructure type, number of other bicyclists and parked cars, green space, and travel time. The survey would collect stated preferences and recruit volunteers for GPS tracking to reveal actual route choices. The goal is to identify key attributes influencing route selection and inform simulation models.

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WP3: Simulation of bicyclist behaviour Bicyclists route choice: Presentation of a choice experiment design and application of GPS tracks to a revealed preference study What do bi-cyclists prefer, and what do they do? Jette Bredahl Jacobsen - [email_address] Hans Skov-Petersen – [email_address] Suzanne Elizabeth Vedel - [email_address] Bernhard Snizek - [email_address] Skov & Landskab, LIFE/KU
Overview Assessment of route choice Stated Preference (SP) vs Revealed Preference (RP) Choice Experiments (CE). Why? The survey (questionnaire) in general In-street application of the survey Selection of attributes Focus group interviews Literature Special Danish topics Methods Experiment design Selection of means of representation Anticipated results and their use
Assessment of route choice When investigating preferences and thereby try to apply parameters to anticipated choice situations , you can Ask respondents to State their Preference (SP) or Look at what they are actually doing and on that basis Revealed Preference (RP) Choice Experiments (CE). Why? Rank you preferences: What do you prefer to meet in the forest? An American Pit-bull Terrier A Roe Deer Rank you preferences: Which route would you take in the forest? A path directly towards your destination where you can see an American Pit-bull Terrier A path directly a way from your destination where you can see a Roe Deer
The survey in general Intervention: In-street at focal locations (e.g. where infrastructural changes are to take place) Method: Applied as a Web based questionnaire Period: Two month from 1. April 2011. Will be repeated after two years Constitutes: A questionnaire A choice experiment A call for participation in the GPS survey (200 respondents) Anticipated results: Information on Danish bi-cyclist’ behaviour, preferences and attitudes Choice parameters applicable to a simulation model
The questionnaire The questionnaire includes Base data (age, gender etc.) Bi-cycle behaviour (frequency, distance, purpose, anticipated relative speed) Preferences, attitudes, and present level of satisfaction: Pavement/surface, Lights, Signs, Segregation from other traficant's, Number of stops Safety , Speed of cars Green environment, Pollution (air quality) Route choice (single attribute), related to ‘willingness to pay’ in terms of detouring: Different types of bicycle paths Types of parking along cycle lane Bus stops (amount and types of) Number of cars and cyclists Possibilities to ride fast and take over on the cycle path A Choice Experiment (discussed in a moment)
The Choice Experiment (I) Identifying relevant attributes by: Literature: Facility type, parking, travel time (see also Hunt and Abraham 2006). Focus group interviews: Relation to pedestrian, continuity. Green environment and relations to bicycle crowding means less than expected. Rides 2-50 km per day. A Danish addition: Experienced crowding on the bicycle path An additional premises: It must be possible to identify attributes/levels applied in the SP, in available GIS-data to facilitate RP analysis of GPS tracks
Choice Experiment (II) Our suggestion (+ distance): Few, some, or many Few, some, or many Yes or no (Missing, lane or) path Bicycle path on its own Few, some, or many Few, some, or many Yes (or no) Missing, lane or path Street in housing neighbourhood, Light, low speed traffic Few, some, or many Few, some, or many Yes (or no) Missing, lane or path Shopping street, 2 lanes, Dense, low speed traffic, Manu pedestrians on side walk Few, some, or many Few, some, or many Yes or no Missing, lane or path Approach road, 2-3 lanes, Dense, medium speed traffic, Housing neighbourhood Few, some, or many Few, some, or many Yes or no Lane or path Main road, 4 car lanes, Dense, fast traffic, scattered buildings Number of bicyclists Number of stops Green along path Bicycle lane Environment
Choice Experiment (III) Presentation Options: Texts Photos Videoclips Computer rederings Drawings Combinations A shopping street with bicycle lane, with cars parked along the lane. Some bicles. 9 km in total A street without bicycle lane, parked cars along the side. Few bicycles. 6 km in total.
Choice Experiment (IV) Our suggestion: Combined text and sketch drawings, Version 1 Options presented two at a time o Select o Select Street in housing neighbourhood, Light low speed traffic Bicycle path Many parked cars Few Stops Few Bicyclists 9 km Shopping street, 2 lanes, Dense, low speed traffic, Many pedestrians on side walk Bicycle path Many parked cars Some Stops Many Bicyclists 6 km
Choice Experiment (V) Our suggestion: Combined text and sketch drawings, Version 2 Options presented two by two 6 km in total o Select 9 km in total o Select 2/3 of the way: Street in housing neighbourhood, Light low speed traffic. Bicycle path, Many parked cars, Few Stops, Few Bicyclists 1/3 of the way: Shopping street, 2 lanes, Dense, low speed traffic, Many pedestrians on side walk . Bicycle path, Many parked cars, Some Stops, Many Bicyclists 2/3 of the way: Approach road, 2-3 lanes, Dense, medium speed traffic, Housing neighbourhood, some bicycles 1/3 of the way: Street in housing neighbourhood, Light low speed traffic. Bicycle path, Many parked cars, Few Stops, Few Bicyclists
Choice Experiment (VI) Rutevalg 1: Imagine that you have to bike to get to work/school/sport every day. The shortest distance is 4 km. Which route would you choose? Few some many Number of stops 4 5 6 Km many Many Few Number of other bikes path No Lane Bicicling lane Along a Park (picture) Shopping street (picture) Main road (picture) Environment Rute 3 Rute 2 Rute 1
Yet to be considered: Combinations not possible for all environments Efficiency loss Experience with this? Excluding parked cars Essential? Even more efficiency loss Distance Total distance Extra distance as opposed to shortest route Whether to include a status quo or not Whether a route consists of one or several (two) sections
That’s it... Thanks... Jette Bredahl Jacobsen - [email_address] Hans Skov-Petersen – [email_address] Suzanne Elizabeth Vedel - [email_address] Bernhard Snizek - [email_address] Skov & Landskab, LIFE/KU

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Hans & Jette | Bikeability Workshop December 2010

  • 1. WP3: Simulation of bicyclist behaviour Bicyclists route choice: Presentation of a choice experiment design and application of GPS tracks to a revealed preference study What do bi-cyclists prefer, and what do they do? Jette Bredahl Jacobsen - [email_address] Hans Skov-Petersen – [email_address] Suzanne Elizabeth Vedel - [email_address] Bernhard Snizek - [email_address] Skov & Landskab, LIFE/KU
  • 2. Overview Assessment of route choice Stated Preference (SP) vs Revealed Preference (RP) Choice Experiments (CE). Why? The survey (questionnaire) in general In-street application of the survey Selection of attributes Focus group interviews Literature Special Danish topics Methods Experiment design Selection of means of representation Anticipated results and their use
  • 3. Assessment of route choice When investigating preferences and thereby try to apply parameters to anticipated choice situations , you can Ask respondents to State their Preference (SP) or Look at what they are actually doing and on that basis Revealed Preference (RP) Choice Experiments (CE). Why? Rank you preferences: What do you prefer to meet in the forest? An American Pit-bull Terrier A Roe Deer Rank you preferences: Which route would you take in the forest? A path directly towards your destination where you can see an American Pit-bull Terrier A path directly a way from your destination where you can see a Roe Deer
  • 4. The survey in general Intervention: In-street at focal locations (e.g. where infrastructural changes are to take place) Method: Applied as a Web based questionnaire Period: Two month from 1. April 2011. Will be repeated after two years Constitutes: A questionnaire A choice experiment A call for participation in the GPS survey (200 respondents) Anticipated results: Information on Danish bi-cyclist’ behaviour, preferences and attitudes Choice parameters applicable to a simulation model
  • 5. The questionnaire The questionnaire includes Base data (age, gender etc.) Bi-cycle behaviour (frequency, distance, purpose, anticipated relative speed) Preferences, attitudes, and present level of satisfaction: Pavement/surface, Lights, Signs, Segregation from other traficant's, Number of stops Safety , Speed of cars Green environment, Pollution (air quality) Route choice (single attribute), related to ‘willingness to pay’ in terms of detouring: Different types of bicycle paths Types of parking along cycle lane Bus stops (amount and types of) Number of cars and cyclists Possibilities to ride fast and take over on the cycle path A Choice Experiment (discussed in a moment)
  • 6. The Choice Experiment (I) Identifying relevant attributes by: Literature: Facility type, parking, travel time (see also Hunt and Abraham 2006). Focus group interviews: Relation to pedestrian, continuity. Green environment and relations to bicycle crowding means less than expected. Rides 2-50 km per day. A Danish addition: Experienced crowding on the bicycle path An additional premises: It must be possible to identify attributes/levels applied in the SP, in available GIS-data to facilitate RP analysis of GPS tracks
  • 7. Choice Experiment (II) Our suggestion (+ distance): Few, some, or many Few, some, or many Yes or no (Missing, lane or) path Bicycle path on its own Few, some, or many Few, some, or many Yes (or no) Missing, lane or path Street in housing neighbourhood, Light, low speed traffic Few, some, or many Few, some, or many Yes (or no) Missing, lane or path Shopping street, 2 lanes, Dense, low speed traffic, Manu pedestrians on side walk Few, some, or many Few, some, or many Yes or no Missing, lane or path Approach road, 2-3 lanes, Dense, medium speed traffic, Housing neighbourhood Few, some, or many Few, some, or many Yes or no Lane or path Main road, 4 car lanes, Dense, fast traffic, scattered buildings Number of bicyclists Number of stops Green along path Bicycle lane Environment
  • 8. Choice Experiment (III) Presentation Options: Texts Photos Videoclips Computer rederings Drawings Combinations A shopping street with bicycle lane, with cars parked along the lane. Some bicles. 9 km in total A street without bicycle lane, parked cars along the side. Few bicycles. 6 km in total.
  • 9. Choice Experiment (IV) Our suggestion: Combined text and sketch drawings, Version 1 Options presented two at a time o Select o Select Street in housing neighbourhood, Light low speed traffic Bicycle path Many parked cars Few Stops Few Bicyclists 9 km Shopping street, 2 lanes, Dense, low speed traffic, Many pedestrians on side walk Bicycle path Many parked cars Some Stops Many Bicyclists 6 km
  • 10. Choice Experiment (V) Our suggestion: Combined text and sketch drawings, Version 2 Options presented two by two 6 km in total o Select 9 km in total o Select 2/3 of the way: Street in housing neighbourhood, Light low speed traffic. Bicycle path, Many parked cars, Few Stops, Few Bicyclists 1/3 of the way: Shopping street, 2 lanes, Dense, low speed traffic, Many pedestrians on side walk . Bicycle path, Many parked cars, Some Stops, Many Bicyclists 2/3 of the way: Approach road, 2-3 lanes, Dense, medium speed traffic, Housing neighbourhood, some bicycles 1/3 of the way: Street in housing neighbourhood, Light low speed traffic. Bicycle path, Many parked cars, Few Stops, Few Bicyclists
  • 11. Choice Experiment (VI) Rutevalg 1: Imagine that you have to bike to get to work/school/sport every day. The shortest distance is 4 km. Which route would you choose? Few some many Number of stops 4 5 6 Km many Many Few Number of other bikes path No Lane Bicicling lane Along a Park (picture) Shopping street (picture) Main road (picture) Environment Rute 3 Rute 2 Rute 1
  • 12. Yet to be considered: Combinations not possible for all environments Efficiency loss Experience with this? Excluding parked cars Essential? Even more efficiency loss Distance Total distance Extra distance as opposed to shortest route Whether to include a status quo or not Whether a route consists of one or several (two) sections
  • 13. That’s it... Thanks... Jette Bredahl Jacobsen - [email_address] Hans Skov-Petersen – [email_address] Suzanne Elizabeth Vedel - [email_address] Bernhard Snizek - [email_address] Skov & Landskab, LIFE/KU