Study of Training Program for Safe and Fuel Efficient Driving
Last registered on May 18, 2018

Pre-Trial

Trial Information
General Information
Title
Study of Training Program for Safe and Fuel Efficient Driving
RCT ID
AEARCTR-0000816
Initial registration date
August 18, 2015
Last updated
May 18, 2018 10:16 AM EDT
Location(s)
Region
Primary Investigator
Affiliation
Harvard University
Other Primary Investigator(s)
Additional Trial Information
Status
On going
Start date
2015-08-24
End date
2018-05-31
Secondary IDs
Abstract
Road transport is a major source of both greenhouse gas emissions and local air pollution. Large vehicles cause disproportionate damages. Research and policy prioritize improving vehicle quality rather than changing driver behavior, even though driving techniques substantially affect fuel consumption and emissions. I conducted a field experiment in Karnataka, India, randomly assigning public sector bus drivers to two interventions: a training program on safe and fuel efficient driving, and a financial incentives scheme for achieving fuel efficiency targets. The training program increased fuel efficiency in the short term for four months and had no effect thereafter. The incentives scheme increased fuel efficiency for a twelve month period. I find no evidence of any complementarities between training and incentives. Training increased fuel efficiency by a marginally significant 0.0186 kilometers per liter for four months, which saved 0.19\% of baseline fuel consumption over twelve months, and had a return on investment of Rs. 3.12 per rupee spent. Incentives increased fuel efficiency by a statistically significant 0.0168 kilometers per liter for twelve months, which saved 0.35\% of baseline fuel consumption, and had a return on investment of Rs. 4.22 per rupee spent. Along with the high return on investment from fuel savings, the interventions generated positive externalities from reduced vehicle emissions.
Registration Citation
Citation
Nilekani, Janhavi. 2018. "Study of Training Program for Safe and Fuel Efficient Driving." AEA RCT Registry. May 18. https://www.socialscienceregistry.org/trials/816/history/29688
Experimental Details
Interventions
Intervention(s)
Bus drivers employed by the implementation partner, a public transport bus corporation in India, will be randomly provided with training on Safe and Fuel Efficient Driving (SAFED), and with financial incentives for achieving fuel efficiency targets.
Intervention Start Date
2015-11-01
Intervention End Date
2016-06-30
Primary Outcomes
Primary Outcomes (end points)
Fuel efficiency (in kilometres per litre). Depending on data availability, we will try to measure over speeding, harsh braking, and harsh acceleration.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Participating bus drivers will be randomly assigned to three groups.
Control Group: This group will not attend any training programs for Safe and Fuel Efficient Driving (SAFED) during the trial period.
Treatment Group A: This group will attend a 2 day SAFED training program, and will also have additional practical training sessions.
Treatment Group B: This group will attend a 2 day SAFED training program, will have additional practical training sessions, and will receive financial incentives if they achieve their fuel efficiency targets.
Experimental Design Details
Randomization Method
Randomization done in office by a computer
Randomization Unit
Individual
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
1,500 bus drivers from 35 bus depots (branches)
Sample size: planned number of observations
1,500 bus drivers
Sample size (or number of clusters) by treatment arms
Control group: 500 bus drivers
Treatment Group A: 500 bus drivers
Treatment Group B: 500 bus drivers
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Harvard University-Area Committee on the Use of Human Subjects
IRB Approval Date
2015-01-12
IRB Approval Number
IRB14-4522
Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
No
Is data collection complete?
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports and Papers
Preliminary Reports
Relevant Papers