1. Analysis of Naturalistic Electric Bike Rider Behavior: Energy and Power Considerations
By Noelani Fishman and Breanna Piercy
Graduate Assistant: Kwaku Boakye
Professors: Shashi Nambisan, Chris Cherry
Center for Transportation Research
University of Tennessee, Knoxville

2. Goals Determine how much energy is put into pedaling a standard e-bike
Analyze naturalistic behavior
Interpret data about
Power expenditure
user’s energy distribution
Electric bicycle’s efficiency
Encourage use of electric bikes

3. Introduction
An e-bike is a hybrid between human and electrical power that uses an electric motor to assist its rider
UT hosted an on-campus e-bike share program in 2012
Currently, research continues centered around e-bikes at UT

4. Bicycle/E-bike Share Programs
are self-serving bike stations in cities
First 30 minutes free
Return to other station
Mainly in Europe and Asia
Two cities:
Denver
New York City
E-bike share programs rare in US
Started on UT campus in TN
Ended within a year
San Francisco plans on creating a program

5. Classifications and Parts of E-Bikes
How electric bikes operate:
Power-assisted
Power-on-demand
Electric Bike Classification:
Pedal Assist
Throttle on Demand
Speed Pedelic
Moped or Motorcycle
Three main components of an electric bike:
The Battery
The Motor
The Controller

6. We will add a picture of an e-bike right here, and
Anatomy of an E-bike
We will add a picture of an e-bike right here, and
then use graphics to explain its anatomy. We haven’t done this yet because we are going to use a picture we take ourselves.

7. Disadvantages of E-bikes
Promotes exercise
On some e-bikes, can pedal to power motor
Easier to pedal
More energy efficient for uphill and against wind riding
Greener form of transportation
Requires greater use of ab muscles because of weight
Smaller environmental footprint than regular bicycles
Heavier than normal bikes
Expensive
Increased crash rates on bike trails
Difficult to steer
Cumbersome due to weight and size
Greater speeds lead to safety concerns
Not as much exercise as a normal bike
Government regulations are vague and restrict usage

8. Country Experiences and Legislation of E-bikes
E-bike usage in the United States is limited due to legislation put in place by state governments
Limits put on e-bikes include:
Speed limit
Must follow regular bicycle regulations
Must have pedals
Weight restrictions
Motor wattage
E-bikes have increased in popularity globally
In 2012, 29.3 million e-bikes were sold globally
E-bike popularity has boomed in China and the Netherlands

9. The Process

10. Data we don’t yet know
Equation we use to figure out power used by each rider

11. Data we don’t yet know
This would be a chart to explain the differences between electricity-free riding and full electricity riding

12. Data we don’t yet know
Conclusion of data and the result we got

13. Bibliography "Intro To Ebikes." - Learn. N.p., n.d. Web. 01 July 2015.
"What Is an Electric Bicycle?" What Is an Electric Bicycle? N.p., n.d. Web. 01 July 2015.
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"Electric Bikes, On A Roll In Europe, Start To Climb In U.S." NPR. NPR, n.d. Web. 1 July
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Macarthur, John, Jennifer Dill, and Mark Person. "Electric Bikes in North America." Transportation Research Record: Journal of the Transportation Research Board (2014): Web. 1 July 2015.

14. Bibliography
Behrendt, Frauke. "Using Electrically-assisted Bikes: Lazy Cheaters or Healthy Travellers?" The Guardian. N.p., 14 May Web. 1 July 2015.
Hodapp, Patty. "Why You Need An Electric Bike." Men's Fitness. Weider Publications, n.d. Web. 1 July 2015.
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Zeng, Heshuang. "China Transportation Briefing: E-bikes and the Challenge of Traffic Safety." The City Fix. World Resources Institute, 14 May Web. 02 July 2015.
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"What Is B-cycle?" Denver B-cycle. B-cycle, Web. 02 July 2015.
Snyder, Nina. "Denver B-cycle Review." About Travel. About.com, n.d. Web. 02 July 2015.
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Streeter, A. K. "City CarShare to Launch Pilot Electric Bike Share Program." TreeHugger. MNN HOLDING COMPANY, 21 Jan Web. 02 July 2015.
Walker, Alissa. "Why Don't More Cities Have E-Bike Shares?" Gizmodo. N.p., 24 June Web. 02 July 2015.

15. Acknowledgements
This work was supported primarily by the ERC Program of the National Science Foundation and DOE under NSF Award Number EEC
Other US government and industrial sponsors of CURENT research are also gratefully acknowledged.

16. Questions and Answers