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Transport Policy
journal homepage: www.elsevier.com/locate/tranpol
Comparing data quality and cost from three modes of on-board transit
surveys
Asha Weinsten Agrawal
⁎
, Stephen Granger-Bevan, Gregory L. Newmark, Hilary Nixon
Mineta Transportation Institute, USA
ARTICLE INFO
Keywords:
Survey methods
Public transit planning
Customer research
Performance measurement
ABSTRACT
Many transit agencies invest substantial resources in surveying their passengers to generate data used for
planning, marketing, and equity analyses. Within the industry, there is considerable interest in replacing
traditional paper-based self-complete surveys with new approaches that might lower costs or generate better
quality data. However, very limited research has been done to identify the relative performance of different
transit passenger survey modes. This paper begins to fill that gap.
The research investigates the relative data quality for three different bus passenger survey methods
distributed or administered on the transit vehicle: self-complete paper surveys, interviewer-assisted tablet-
based surveys, and self-complete online surveys. The research used an experimental design, with the same
survey questionnaire distributed via the three survey modes. All factors about the survey and distribution
process were kept identical to the extent feasible, so that the only variation would be the survey mode itself.
The findings by survey mode are compared in terms of the overall response and completion rates, the
completion rate for individual questions, respondent demographics, and labor costs per complete. The study
results suggest that many agencies may still find the old-fashioned, low-tech paper survey to be the best option
for bus passenger surveys. The paper mode required less labor per complete, and for many of the metrics
discussed it generated data that was as good as—or better than—the tablet survey. In addition, the findings
suggest that online survey invitations distributed on the transit vehicle are not a good option because they were
labor intensive and had very low response rates.
1. Introduction
This research investigates the relative data quality and labor costs
for three different modes of surveying bus passengers using survey
methods distributed or administered on the transit vehicle: self-
complete paper surveys, interviewer-assisted tablet-based surveys,
and self-complete online surveys.
Many transit agencies invest substantial financial and time re-
sources into surveying their customers, with costs easily running from
$500,000 to a $1,000,000 for a large agency. For example, a 2006
survey of passengers on Chicago’s Metra commuter rail system cost
more than $600,000. Expensive survey efforts are justified on the
grounds that the data collected are fundamental inputs for a wide range
of purposes that include travel modeling, system-wide or route-level
planning, setting fare policy, and communicating with existing custo-
mers (Schaller, 2005; Members and Friends of the Transportation
Research Board’s Travel Survey Methods Committee, 2015).
Since the fall of 2012, the US Department of Transportation’s
Federal Transit Administration (FTA) has directed larger transit
agencies to conduct passenger surveys every five years and ensure
participation from minority and low-income riders who have histori-
cally under-participated in such efforts (U.S. Department of
Transportation, Federal Transit Administration, 2012). This FTA
directive will require many U.S. transit agencies to survey more
frequently than they have in the recent past. Thus, agencies have
newly-strengthened interest in identifying survey methods that will
reduce costs while still gathering high-quality data.
When planning a survey, transit agencies must choose among a
variety of possible survey modes, with little guidance available to help
them assess cost and quality tradeoffs. The growing availability of
affordable information and communications technologies has led a
number of agencies to experiment with new survey modes in hopes of
either improving data quality or reducing costs. In recent years,
agencies have tried a variety of survey modes, including:
1. On-board distribution of self-complete post-cards that collect phone
http://dx.doi.org/10.1016/j.tranpol.2016.06.010
Received 27 January 2016; Received in revised form 29 April 2016; Accepted 1 June 2016
⁎
Corresponding author.
E-mail addresses: Asha.weinstein.agrawal@sjsu.edu (A.W. Agrawal), stephen.grangerbevan.sjsu@gmail.com (S. Granger-Bevan), gnewmark@ksu.edu (G.L. Newmark),
hilary.nixon@sjsu.edu (H. Nixon).
Transport Policy (xxxx) xxxx–xxxx
0967-070X/ © 2016 Elsevier Ltd. All rights reserved.
Please cite this article as: Agrawal, A.W., Transport Policy (2016), http://dx.doi.org/10.1016/j.tranpol.2016.06.010